EICR codes are used in an Electrical Installation Condition Report to show how serious an electrical observation is.
The main EICR codes are:
- C1 – danger present
- C2 – potentially dangerous
- C3 – improvement recommended
- FI – further investigation required
In simple terms, C1, C2 and FI usually make an EICR unsatisfactory. A C3 code alone usually does not fail the report, but it still gives useful improvement advice.
This guide gives practical EICR code examples so landlords, homeowners, letting agents and property managers can understand what the codes mean and what action may be needed.
Last Updated: 2026
Reviewed By: London Safety Certificate Compliance Team
Key Takeaways
- EICR codes show the seriousness of electrical observations.
- C1 means danger is present and immediate action is needed.
- C2 means potentially dangerous and urgent remedial work is required.
- C3 means improvement recommended and does not usually fail the EICR by itself.
- FI means further investigation is required before the electrician can confirm safety.
- Common C1 examples include exposed live parts or immediate shock risk.
- Common C2 examples include damaged wiring, inadequate bonding, unsafe consumer unit defects and overheating signs.
- Common C3 examples include missing labels, older equipment or improvements to modern standards.
- Landlords should keep written evidence after remedial or investigative work is completed.
Table of Contents
Quick Answer: EICR Code Examples
| Code | Meaning | Simple Example | EICR Result |
|---|---|---|---|
| C1 | Danger present | Exposed live parts accessible to touch | Unsatisfactory |
| C2 | Potentially dangerous | Damaged cable insulation or inadequate bonding | Unsatisfactory |
| C3 | Improvement recommended | Missing circuit labels or older equipment upgrade advised | Usually satisfactory |
| FI | Further investigation required | Unexplained test result or suspected hidden wiring fault | Unsatisfactory until investigated |
Do not treat these examples as automatic codes in every property. The final code depends on the electrician’s inspection, testing and professional judgement
Comprehensive Guide to EICR Codes and Their Meanings
Understanding what each EICR code represents helps identify potential electrical hazards and ensure that they meet current regulatory standards.
This knowledge enhances safety and informs necessary corrective actions in residential, commercial, and industrial settings.
What are EICR Codes? An Overview
Several property managers and electricians frequently encounter Electrical Installation Condition Report (EICR) codes, yet understanding their full implications remains a challenge for many.
EICR codes stem from detailed assessments integral to the EICR process, which evaluates the safety and efficiency of electrical installations within commercial and residential properties. Strict safety regulations govern this systematic examination and aim to guarantee property compliance with current electrical standards.
The process involves a series of electrical inspections and testing procedures designed to identify any defects or deviations from the wiring regulations outlined in the BS 7671, also known as the UK national standard. The findings from these inspections are then documented using specific EICR codes, each denoting a particular type of electrical safety issue or non-compliance.
These codes range from immediate dangers that require urgent attention to recommendations for improvements that enhance safety and efficiency.
Understanding and accurately interpreting these codes is critical for maintaining electrical safety and compliance in properties. Mastery of the EICR codes not only aids in pinpointing existing and potential issues but also guides the necessary corrective actions, guaranteeing that all electrical installations meet the required safety standards.

Why EICR Codes Matter for Electrical Safety?
Understanding EICR codes is essential for guaranteeing electrical safety and compliance in both residential and commercial properties. These codes, integral to Electrical Installation Condition Reports, serve as a structured guideline aligning with electrical regulations. They are vital in identifying non-compliance and potential safety hazards within electrical installations.
EICR codes facilitate detailed safety inspections and risk assessments, which are important for maintaining the integrity and safety of electrical systems. By adhering to these codes, inspectors can precisely categorise electrical faults, ranging from immediate dangers to recommendations for improvements. This categorisation enables property owners and facility managers to understand the urgency and nature of issues that need addressing, thereby prioritising corrective actions effectively.
The inclusion of EICR codes in regular audits not only guarantees compliance with current electrical safety standards but also enhances homeowner awareness. It educates property stakeholders about the importance of regular checks and the potential risks of neglecting such assessments.
Compliance with these standards is not merely a regulatory formality but a fundamental aspect of property management that safeguards occupants and structures from electrical mishaps, thereby upholding high safety and operational standards in the built environment.
Common EICR Code Examples
| Observation Found on EICR | Possible Code | Why It Matters |
|---|
| Exposed live terminal accessible to touch | C1 | Immediate shock risk |
| Severely damaged socket exposing live parts | C1 | Danger present |
| Consumer unit with accessible live parts | C1 or C2 | Depends on severity and accessibility |
| Missing consumer unit blanks | C1 or C2 | Live parts may become accessible |
| Damaged cable insulation | C2 | Shock, short circuit or fire risk |
| Inadequate main bonding | C2 possible | Fault current may not clear safely |
| Loose or overheating connections | C2 likely | Fire risk may be developing |
| RCD not operating correctly | C2 possible | Fault protection may not work |
| Borrowed neutral | C2 or FI | Unsafe isolation or further investigation needed |
| Signs of overheating in fuse board | C2, or C1 if severe | Fire risk or immediate danger |
| Older plastic consumer unit with no damage | C3 possible | Upgrade may be recommended |
| Missing circuit labels | C3 possible | Better identification recommended |
| No SPD where improvement is advised | C3 possible | Surge protection improvement |
| Unclear circuit route or hidden fault suspected | FI | More investigation needed |
| Unusual test result that cannot be explained | FI | Safety cannot be confirmed |
Detailed Examples of EICR Codes: C1, C2, C3, and FI
Understanding the distinctions between EICR codes—C1, C2, C3, and FI—is essential for evaluating electrical safety and compliance.
Code C1 indicates conditions that pose an immediate danger requiring urgent attention. At the same time, C2 identifies potential hazards that could become a risk if not addressed.
Conversely, C3 suggests improvements for enhanced safety, and FI mandates further investigation to ascertain the extent of potential dangers.
C1 Code Examples: Danger Present
A C1 code means there is immediate danger at the time of inspection.
Examples may include:
- exposed live parts
- live terminals accessible to touch
- severe burning or arcing
- damaged equipment with immediate shock risk
- broken accessory exposing live conductors
- dangerous consumer unit condition
- serious fire or injury risk
C1 issues should be made safe immediately. The electrician may isolate the affected circuit or equipment until it is repaired.
C2 Code Examples: Potentially Dangerous
A C2 code means the issue is potentially dangerous and needs urgent remedial action.
Examples may include:
- damaged cable insulation
- inadequate earthing or bonding
- unsafe consumer unit defects
- missing RCD protection where risk is significant
- borrowed neutral causing unsafe isolation
- overheating signs in a consumer unit
- damaged accessories
- incorrect protective device
- unsafe DIY alterations
- loose or damaged connections
- exposed conductive parts
A C2 usually makes the EICR unsatisfactory.
C3 Code Examples: Improvement Recommended
A C3 code means improvement is recommended. It does not usually make the report unsatisfactory by itself.
Examples may include:
- missing or unclear circuit labels
- older consumer unit with no immediate defect
- old wiring colours but otherwise safe
- no SPD where improvement is recommended
- minor accessory wear with no exposed live parts
- older protective devices that could be upgraded
- plastic consumer unit with no damage or overheating
- better documentation or circuit schedule recommended
C3 items should still be reviewed, but they are usually planned improvements rather than urgent defects.
FI Code Examples: Further Investigation Required
FI means the electrician needs further investigation before confirming whether the installation is safe.
Examples may include:
- suspected borrowed neutral
- unexplained RCD tripping
- unusual test result
- hidden cable damage suspected
- circuit cannot be traced
- signs of overheating that need deeper checks
- inaccessible wiring that affects safety assessment
- previous alterations that cannot be verified
FI usually makes the EICR unsatisfactory until the investigation is completed.

What Codes Fail an EICR?
An EICR is usually marked unsatisfactory if it contains:
- C1
- C2
- FI
A report with C3 only is usually still satisfactory because C3 means improvement recommended.
NICEIC explains that if a C1, C2 or FI code is assigned to any observed issue, the EICR result will be unsatisfactory
Real-Life Scenarios Illustrating EICR Code Classifications
In electrical inspections, correctly classifying issues according to EICR codes is essential for ensuring safety and compliance.
This segment explores real-life scenarios that typically lead to specific EICR code assignments, such as C1, C2, C3, and FI. Each denotes varying levels of electrical risk and urgency for remedial actions.
Common Instances Leading to C1 Code Assignments
Why are C1 codes so critical in electrical inspection condition reports (EICRs)? The designation of a C1 code highlights conditions that pose an immediate danger to property occupants and require urgent remedial action.
In the context of electrical safety assessments, common C1 violations include exposed live wires, greatly compromised insulation, and faults in electrical panels that present a direct risk of fire or electrocution.
Landlord responsibilities under these circumstances are not just regulatory. Still, they are essential to guarantee tenant safety. Immediate measures, as dictated by urgent repair protocols, must be enacted without delay to mitigate these hazards.
Failure to address such issues can lead to severe legal consequences and endanger lives.
Tenant awareness is also pivotal. Occupants must be educated on recognising signs of electrical hazards and understanding the severity implied by a C1 classification.
This knowledge empowers tenants to demand swift actions and guarantees compliance with safety norms.
Examples of Electrical Issues Resulting in C2 Codes
Shifting focus from the immediate dangers identified by C1 codes, C2 codes in electrical inspection condition reports (EICRs) signify potentially dangerous conditions that require remedial action but are not considered immediately life-threatening. These codes are pivotal for maintaining safety compliance in electrical installations and avoiding future hazards.
C2 code examples typically include scenarios such as inadequate earthing or bonding that might not cause immediate harm but pose significant risks if left unaddressed. Wiring issues, particularly those involving outdated or deteriorating insulation, also frequently result in a C2 classification. Such conditions might not manifest in visible damage or disruption yet. Still, they compromise the wiring integrity, increasing the potential for electrical fires or shocks over time and requiring prompt action to fix a C2.
To illustrate, consider the following real-life scenarios captured in inspection results:
| Issue Identified | Potential Risk |
| Inadequate earthing | Increased risk of electric shock |
| Outdated wiring insulation | Fire hazard due to short circuit |
| Absence of RCD protection | Severe shock or fire incidents |
Each of these instances highlights the necessity for timely intervention to uphold the integrity and safety of electrical systems.
Situations That May Be Assigned a C3 Code
C3 codes in Electrical Installation Condition Reports (EICRs) are assigned to electrical situations that, while not posing immediate or potential danger, still warrant improvement to enhance system safety and compliance.
For instance, consider a scenario where insulation on wiring is slightly degraded but not yet to the extent where it exposes live wires or risks short circuits. In such cases, assigning a C3 code underscores the need for future remediation to prevent deterioration that could elevate the risk to a more severe code classification.
Further delving into c3 code examples, one might encounter a situation where the earthing or bonding arrangements are functional yet not up to the latest standards. The implications here are subtle but significant, emphasising an upgrade to current standards to guarantee maximum safety.
C3 code recommendations typically suggest enhancements rather than urgent repairs, providing a window for planned upgrades without immediate pressure.
Analysing C3 code interpretations reveals that they are not alarming but rather cautionary advisories that aim to guide property owners towards better compliance and system integrity.
Such scenarios help us understand the nuanced approach required in electrical safety assessments and illustrate the proactive nature of C3 code scenarios in preempting potential electrical hazards.
Cases Where FI Codes Are Applicable
Further exploring Electrical Installation Condition Report (EICR) classifications, the FI (Further Investigation) code is another critical category that merits attention. This designation is pivotal in scenarios where an immediate danger is not apparent. Yet, the existence of potential hazards cannot be ruled out.
FI codes are typically assigned during EICR inspections when the assessor identifies an irregularity that cannot be thoroughly evaluated at the time of inspection due to various constraints, such as limited access to components or incomplete circuit labelling.
Real-life instances where FI codes are applicable include situations where the insulation resistance readings are marginally below the acceptable threshold. This prompts a need for further detailed assessment to determine whether the degradation is localised or indicative of a more extensive issue.
Another example is the discovery of older wiring systems that have been subjected to alterations or additions. These scenarios necessitate a deeper investigation to guarantee compliance with current electrical safety regulations and standards.
Assigning an FI code initiates a critical process that guarantees all potential risks are adequately assessed and addressed. This aligns with compliance requirements and upholds the highest standards of electrical safety.
This code is essential in bridging the gap between immediate fixes and long-term electrical upgrades.

How to Interpret EICR Codes in Your Electrical Safety Report
Understanding the significance of each Electrical Installation Condition Report (EICR) code is essential for maintaining the safety and compliance of electrical installations.
The EICR codes, ranging from C1 to C3, indicate the level of risk associated with each identified issue, guiding property owners on the urgency and type of remedial action required.
Proper interpretation of these codes guarantees regulatory compliance and enhances the safety and longevity of electrical systems.
Decoding the Significance of Each EICR Code
In the domain of electrical safety, Electrical Installation Condition Report (EICR) codes serve as essential indicators of an electrical installation’s health and safety status. These codes, formulated as part of rigorous EICR inspection processes, delineate various levels of compliance and urgency, guiding property owners and electrical professionals in prioritising necessary actions to meet EICR compliance requirements.
Understanding each code’s implications is critical. For instance, a Code C1 indicates ‘danger present’, necessitating immediate remedial action to mitigate direct risks. C2, while less dire, points out potentially dangerous conditions, suggesting urgent corrective measures. C3, on the other hand, highlights non-compliant elements that, although not immediately hazardous, require improvement to uphold safety standards according to the latest EICR code updates.
A solid grasp of EICR reporting standards underpins proficiency in interpreting these codes within the context of an EICR. These standards guarantee that assessments are thorough, consistent, and reflective of current best practices in electrical safety.
Staying updated with EICR code updates is likewise imperative. These modifications reflect evolving technological standards and safety protocols, guaranteeing that the reporting process remains at the forefront of electrical safety and compliance.
Steps to Take Upon Receiving Various EICR Codes
Once the importance of each EICR code is understood, the next step is to respond appropriately to confirm electrical safety and compliance.
The EICR process mandates a robust risk assessment mechanism, especially after identifying codes that signal urgent or potential hazards. For instance, a C1 code indicates immediate danger; the property management must act swiftly to rectify the fault to guarantee occupant safety. This might involve isolating the affected circuit until repairs are complete.
While slightly less urgent, a C2 code still requires quick attention as it points to potentially dangerous conditions. Property managers should schedule repairs promptly, within a defined short timeframe, to mitigate any risk of escalating into a more severe issue.
For codes like FI, which suggest further investigation is needed, it is essential to engage qualified electricians to explore the underlying problems promptly.
Lastly, compliance with safety standards after an EICR must be documented and monitored. Regular follow-ups and subsequent electrical inspections confirm that all corrective actions have been effectively implemented.
This strategic approach not only enhances safety but also protects property owners from legal liabilities arising from electrical failures.

EICR Code Examples for Landlords
Landlords should act quickly when an EICR contains C1, C2 or FI observations.
For rented properties in England, GOV.UK says landlords must complete required remedial or investigative work within 28 days, or sooner if the report gives a shorter timescale.
Landlords should keep:
- the original EICR report
- remedial work certificate
- Minor Works Certificate where relevant
- Electrical Installation Certificate where relevant
- written contractor confirmation
- further investigation report
- updated test results
- updated satisfactory EICR where issued
C3 recommendations should also be reviewed, but C3 alone does not usually trigger the same urgent remedial requirement if the report is otherwise satisfactory.
Examples of Modern EICR Observations Under the 18th Edition
The 18th Edition of the Wiring Regulations introduces refined criteria for Electrical Installation Condition Reports (EICRs), highlighting the need for precise observations during inspections. This amendment has improved the stringency of safety regulations, guaranteeing that all modern wiring systems are evaluated with utmost diligence.
The emphasis is on preventing hazards through meticulous electrical inspections and guaranteeing compliance with the latest safety standards.
The shift towards more detailed risk assessments and proactive maintenance practices has led to an increase in the precision of observations recorded in EICRs. Below are key examples of modern observations under the 18th Edition:
- Circuit Overload: Identification of circuits at risk of overload due to insufficient capacity for modern appliance demands.
- Insulation Deterioration: Detection of aged or damaged insulation that could lead to potential electric shocks or fires.
- Earthing and Bonding Issues: Assessment of improper or outdated earthing and bonding vital for preventing electrical shocks.
- RCD Protection: Verification of the presence and functionality of residual current devices is fundamental to mitigating the risk of electric shock.
- Outdated Wiring Types: Recognition of obsolete wiring types that do not conform to current electrical safety standards.
These observations underscore the importance of adapting inspections to incorporate contemporary electrical systems and safety mechanisms.
The 18th Edition’s rigorous approach guarantees that electrical installations are not only compliant but are also ideally safe for ongoing use, reflecting best practices in both risk assessment and maintenance strategies.
This adaptability is essential in an era where electrical demands and technologies evolve rapidly.
What Should I Do If My EICR Has a C1 Code?
Receiving a C1 code on an Electrical Installation Condition Report indicates an immediate danger present within the electrical installation that requires prompt attention to prevent potential harm.
The EICR implications of a C1 code are severe, suggesting that the condition of the electrical components could cause injury or even fatality. This mandates urgent action to mitigate any risks associated with the fault.
Upon identification of a C1 code during electrical inspections, property owners or responsible personnel must initiate immediate corrective measures.
The first step in addressing this significant issue is to disconnect or isolate the affected part of the electrical system, if feasible, to assure safety compliance and prevent any accidents.
Subsequently, a qualified electrician with experience in C1 repair should be contacted without delay. These professionals will assess the severity of the issue and execute the necessary repairs or replacements.
It is vital to understand that C1 codes represent not only a threat to safety but also a legal liability.
Ignoring such warnings can lead to regulatory penalties or more severe consequences if an incident occurs.
Ensuring that all corrective actions are documented is also essential for maintaining up-to-date and compliant electrical installation records.
Can I Ignore a C3 Code in My EICR?
A C3 code on an Electrical Installation Condition Report (EICR) indicates that the electrical system contains issues that are considered non-urgent but still require attention to guarantee ongoing safety and compliance. This classification suggests that while the installation is not immediately dangerous, it fails to comply with current electrical safety standards fully.
Ignoring a C3 code may not lead to immediate safety hazards. Still, it might escalate over time, leading to potential risks or failure to meet legal requirements for electrical safety.
Ignoring EICR findings, especially a C3 code, can have several implications:
- Increased risk of electrical faults**: Minor issues can develop into major problems.
- Potential legal implications**: Non-compliance with safety standards can lead to legal consequences if an incident occurs.
- Insurance complications: Insurance claims might be invalidated due to known non-compliance.
- Decreased property value**: Known electrical issues can affect property valuations negatively.
- Future compliance costs**: Delaying repairs might increase the costs when they become urgent or compound with other issues.
Homeowner responsibilities include maintaining an electrically safe environment. The EICR compliance checklist serves as a guide, ensuring that all electrical installations meet the required safety standards.
While a C3 code does not demand immediate action, it should not be disregarded. Addressing these issues promptly can prevent further deterioration of the electrical system, ensuring safety and compliance.
Consequently, while it might be tempting, ignoring a C3 code is not advisable for anyone aiming to maintain a safe, compliant, and efficient home environment.

How Are FI Codes Resolved in Electrical Safety Reports?
In Electrical Installation Condition Reports (EICR), FI codes signify ‘Further Investigation’ and are used when an assessor cannot determine the safety of an element due to limitations in the inspection or unclear results. Resolving these FI codes is vital for guaranteeing a property’s electrical safety. It requires a structured approach detailed in Electrical Report Procedures.
The resolution process begins with a detailed review of the initial EICR, focusing on the sections marked with FI codes. This review helps in understanding the specific concerns or ambiguities that led to the issuance of the FI code.
Subsequently, Investigation Protocols are initiated, which may involve more invasive or detailed testing techniques not employed during the initial assessment. These protocols are designed to uncover hidden issues that could not be diagnosed earlier due to the non-invasive nature of standard EICR checks.
During this phase, Safety Compliance Checks are integral. These checks confirm that every investigative action taken adheres to current safety standards and regulations, mitigating any risk to the property or personnel involved. The investigative team employs advanced diagnostic tools and expertise to trace and rectify the root causes of the ambiguities.
Finally, Risk Assessment Measures are applied to evaluate the potential hazards of unresolved electrical issues. These measures guide the decision-making process, determining whether an electrical system can be declared safe or if further remedial actions are necessary.
Upon completion of these steps, FI Code Resolutions are documented in a follow-up report, outlining the findings and confirming compliance with safety standards. This thorough approach guarantees meticulous resolution of FI codes, enhancing the overall safety and integrity of the electrical installation.
EICR Codes and Property Safety
Understanding the resolution of FI codes is fundamental for ensuring the safety of electrical installations. Yet, it is only one aspect of maintaining property safety. Effective property maintenance involves a thorough approach to safety regulations, incorporating regular electrical inspections, and a clear understanding of landlord responsibilities and tenant awareness.
Electrical Installation Condition Reports (EICR) are critical in identifying not just immediate risks but also potential areas of concern that could evolve into future hazards. These reports serve as a cornerstone of property safety protocols, ensuring that all electrical systems comply with current safety standards and provide a safe living or working environment.
The role of EICR codes in property safety extends beyond mere compliance; it is about cultivating a culture of safety and responsibility. Here are key aspects where EICR codes contribute greatly:
- Timely Identification of Electrical Hazards: Early detection of issues such as inadequate wiring or potential fire risks.
- Regulation Compliance: Ensuring all electrical installations meet the latest safety regulations.
- Landlord Responsibilities: Clarifying what landlords must address to safeguard tenants.
- Tenant Awareness: Educating tenants on potential electrical hazards and safety practices.
- Preventive Measures: Recommendations for improvements and preventive actions to avert electrical failures.
Incorporating these practices into the routine management of properties enhances tenant safety and extends the longevity of the electrical infrastructure.
Landlords and property managers must recognise that adherence to EICR recommendations and proactive electrical system management are indispensable elements of robust property maintenance.
What Should You Do After Receiving EICR Codes?
| Code | What to Do |
|---|---|
| C1 | Make safe immediately |
| C2 | Arrange urgent remedial work |
| C3 | Plan improvement if sensible |
| FI | Arrange further investigation without delay |
Do not attempt DIY electrical repairs. EICR observations should be reviewed and corrected by a competent electrician.
Frequently Asked Questions
What are EICR code examples?
EICR code examples are real types of electrical observations that may be recorded as C1, C2, C3 or FI during an Electrical Installation Condition Report.
What is an example of a C1 code?
An example of C1 is exposed live parts that are accessible to touch. C1 means danger is present and immediate action is needed.
What is an example of a C2 code?
An example of C2 is damaged cable insulation, inadequate bonding or an unsafe consumer unit defect. C2 means potentially dangerous.
What is an example of a C3 code?
An example of C3 is missing circuit labelling, older equipment with no immediate defect, or an upgrade recommendation.
What is an example of an FI code?
An example of FI is a suspected hidden wiring fault or unusual test result that needs further investigation.
Which EICR codes make the report unsatisfactory?
C1, C2 and FI usually make an EICR unsatisfactory. C3 alone usually does not.
Can a landlord ignore C3 codes?
A landlord should not ignore C3 recommendations, but C3 alone usually does not fail the EICR. It should be reviewed as a planned improvement.
Can I fix EICR code issues myself?
No. EICR defects should be reviewed and repaired by a competent electrician.
