What Is an EICR Code?
If you’ve had an EICR done and seen codes like C1, C2 or C3, it’s completely normal to feel unsure about what they mean.
This guide breaks them down in simple terms, using real inspection examples from work carried out locally by a qualified electrician in Banbury.
Electrical Installation Condition Reports (EICRs) use classification codes to assess the condition of wiring and electrical systems in your home or rental property. Understanding these codes helps homeowners and landlords identify safety issues and know what action is required.
Click the links below to learn more about each EICR code.
C1 – Danger Present
Immediate risk of electric shock or fire.
C1 observations require urgent attention by a qualified electrician. Common examples include exposed live parts, conductive parts that have become live due to a fault, or incorrect polarity.
Learn more about C1 – Danger Present
C2 – Potentially Dangerous
Not an immediate risk, but unsafe and requires prompt repair.
C2 observations often include circuits without RCD protection, incorrect bonding, or damaged accessories. These should be repaired as soon as possible to maintain safety.
Learn more about C2 – Potentially Dangerous
C3 – Improvement Recommended
Advisory observations — not dangerous but upgrading is recommended.
Examples include older consumer units, missing surge protection, or outdated wiring colours. Improvements are suggested to bring your electrical system up to modern standards.
Learn more about C3 – Improvement Recommended
FI – Further Investigation
Further testing is required to confirm the condition of the installation.
FI observations indicate suspected faults, irregular readings, or hidden wiring issues that need a qualified electrician to investigate.
Learn more about FI – Further Investigation
Frequently Asked Questions
Does an EICR Code C1 or C2 fail an EICR?
Yes. C1 (danger present) and C2 (potentially dangerous) observations will result in an unsatisfactory EICR and require remedial work.
Does an EICR Code C3 fail an EICR?
No. C3 observations are recommendations for improvement and do not make the report unsatisfactory.
Does an EICR Code FI fail an EICR?
Yes. An FI (further investigation) code means the installation cannot be fully assessed and will usually result in an unsatisfactory report until resolved.
What should I do if my EICR is unsatisfactory?
You should use a qualified electrician to carry out any recommended remedial work or further investigation. This is often the electrician who carried out the EICR, although you can seek a second opinion if needed. A reputable electrician will explain the issues and provide a quote before carrying out any C2, C3 or FI work. C1 issues should not be left and are usually made safe immediately.
Do I need to fix EICR issues for a rental property?
Landlords must ensure electrical installations are safe. C1 and C2 issues must be resolved, and FI observations investigated, to meet regulations and enable a satisfactory EICR to be issued to the landlord, tenant and, where applicable, the letting agent.
Why Choose RW Currion for Your Electrical Work?
• Fully qualified and insured
• Clear explanations — no jargon
• Work completed to the latest BS 7671 standards
• Safety-first approach to protect your home, family, and electronics
• All installations come with full certification and are emailed for your records.
Honest advice on any EICR required
Call now: 01295 533378
Mobile: 07740 100378