Common EICR Failures and How to Prevent Them

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Electrical safety stands as a cornerstone of property maintenance, with Electrical Installation Condition Reports (EICRs) serving as the primary health check for your electrical systems.

Whether you’re a homeowner or landlord, understanding what typically goes wrong during these inspections can save you considerable time, money, and most importantly, prevent potentially dangerous situations.

At DH Electrical Services, we’ve conducted thousands of EICRs across the North West, giving us unique insight into the most frequent issues discovered during these vital safety checks.

What Exactly Is an EICR?

An EICR thoroughly examines your property’s electrical installations to ensure they meet current safety standards. Carried out by qualified electricians, these reports classify issues using a coding system:

• C1 (Danger Present): Immediate risk requiring urgent attention
• C2 (Potentially Dangerous): Significant risk that needs addressing promptly
• C3 (Improvement Recommended): Not immediately dangerous but improvements advised

Most EICR failures result from C1 or C2 classifications, which must be remedied before receiving certification. Let’s explore the most common culprits behind these failures.

The Six Most Common EICR Failures

1. Inadequate or Missing RCD Protection

Residual Current Devices (RCDs) rank among the most critical electrical safety components in any property. These devices monitor electrical current flow and automatically cut power when detecting potentially dangerous fault currents.

Many older properties lack sufficient RCD protection, particularly for:

• Socket outlets on ground floors
• Bathroom circuits
• Outdoor electrical installations
• Garage or shed supplies

Without proper RCD coverage, the risk of electric shock increases substantially, especially in areas where water might be present. Approximately 28% of EICR failures we identify stem from inadequate RCD protection.

Prevention: Upgrade your consumer unit to include RCD protection for all circuits, particularly focusing on high-risk areas like bathrooms and outdoor spaces. Modern consumer units typically feature dual RCD protection or individual RCBO devices for comprehensive safety.

2. Outdated or Dangerous Consumer Units

The consumer unit (fuse board) serves as the central hub for your property’s electrical system. Older units, particularly those with:

• Wooden backings
• Cast iron switches
• Rewirable fuses
• No clear labelling

pose significant fire risks and frequently trigger EICR failures.

Particularly concerning are consumer units manufactured before 2015, which might not comply with the 17th Edition (Amendment 3) wiring regulations that mandated consumer units must be constructed from non-combustible material.

Prevention: Replace outdated consumer units with modern, regulation-compliant alternatives. Current standards require metal-cased units with circuit breakers rather than fuses, and comprehensive RCD protection.

3. Bathroom Electrical Hazards

Bathrooms represent high-risk environments due to the combination of electricity and water. Common EICR failures in these spaces include:

• Inappropriate light fittings: Light fixtures directly above or near baths and showers must have proper IP (Ingress Protection) ratings to prevent water ingress. Many properties feature standard pendant lights or spotlights without protective covers in these zones.
• Improper heater installations: Electric heaters must maintain safe distances from water sources and require dedicated circuits with appropriate RCD protection.
• Accessible socket outlets: Standard sockets should not be installed in bathrooms unless positioned more than 3 metres from bath or shower edges.

Prevention: Install only bathroom-rated lighting fixtures (minimum IP44 rating) in zones near water. Ensure all bathroom circuits connect to an RCD for automatic power cut-off during faults. Consider replacing any non-compliant fixtures with properly rated alternatives.

4. Damaged or Exposed Wiring

Wiring deterioration represents a serious safety concern that frequently causes EICR failures. Issues commonly identified include:

• Cracked or frayed insulation exposing live conductors
• Rodent-damaged cables in lofts or under floorboards
• Heat-damaged wiring near light fittings
• Incorrectly terminated cables with exposed copper
• Old rubber-insulated or fabric-covered wiring

Any exposed conductors create significant fire and shock hazards, requiring immediate attention.

Prevention: Regular visual inspections of accessible wiring can identify early signs of damage. Address any damaged cables promptly by hiring qualified electricians to replace affected sections.

5. Insufficient Earth Bonding

Earth bonding connects metal components to your electrical system’s earth, ensuring dangerous voltages cannot build up on exposed surfaces. Common bonding failures include:

• Missing gas bonding: Green and yellow earth cables should connect to the gas meter or pipework
• Insufficient water bonding: Metal water pipes require proper connection to the main earthing system
• Inadequate sizing of bonding conductors: Undersized earth cables may not provide adequate protection

Without proper bonding, metal components like radiators, pipes and baths could develop dangerous voltages during fault conditions.

Prevention: Have a qualified electrician inspect your property’s bonding connections and upgrade as necessary. Ensure any renovation work that involves moving pipework includes appropriate re-bonding.

6. Overloaded Circuits

Modern homes contain significantly more electrical equipment than when many properties were originally wired. This increased demand frequently leads to circuit overloading, where excessive current flows through wiring not designed to handle it.

Signs of overloaded circuits include:

• Frequently tripping circuit breakers
• Warm sockets or switches
• Dimming lights when appliances activate
• Burning smells near electrical points

During EICRs, electricians assess each circuit’s capacity against its actual load, frequently identifying overloading issues that constitute safety hazards.

Prevention: Distribute high-power appliances across multiple circuits rather than concentrating them. Consider installing additional circuits during renovations to accommodate increased electrical demands.

The Role of Professional Electricians in Preventing EICR Failures

Achieving a clean EICR requires professional expertise. Certified electricians provide crucial services that prevent common failures:

Regular Maintenance Inspections
Scheduling periodic checks between formal EICRs helps identify developing issues before they become serious hazards. Even simple visual inspections can catch wiring damage or loose connections.

Proactive Upgrades
Rather than waiting for failures, consider gradual electrical system upgrades. Installing modern RCD protection, upgrading consumer units, and replacing aging wiring during renovations prevents future EICR failures while improving safety.

Expert Troubleshooting
When issues arise, qualified electricians can pinpoint problems without disruptive exploratory work. Their experience helps target interventions precisely, saving time and reducing costs.

Ensuring Your Property Passes Its Next EICR

Prevention remains the most effective approach to EICR compliance. By understanding common failures and addressing potential issues proactively, you can maintain a safer property while avoiding disruptive emergency repairs.

At DH Electrical Services, our NAPIT approved electricians serve homeowners and landlords across the North West with comprehensive electrical testing and remedial services. From Liverpool to Manchester and throughout the surrounding areas, we provide expert solutions to ensure your property meets all electrical safety standards.

Don’t wait for a failed inspection to address electrical concerns. Contact our team today on 07936250380 or email [email protected] to schedule a professional assessment of your property’s electrical systems.

Our electricians in Liverpool and across the North West region are ready to help ensure your property remains safe, compliant, and problem-free.