At NICEIC Electricians, we understand that electrical faults can cause serious disruption, hazards, and in some cases, complete power loss. That’s why fault finding is one of the most critical services we offer. Whether it's flickering lights, circuit tripping, or a complete power failure, our team of certified electricians is trained to trace, identify, and resolve electrical issues in a safe and structured manner.
Here’s a detailed look at the core steps involved in our fault-finding process—a reliable system developed through years of experience serving properties across London.
1. Initial Discussion and Safety Preparation
The first step is always safety. Before beginning any investigation, our electricians will isolate the affected circuit where necessary, ensuring there is no live electricity posing risk. We then discuss the issue with the client, collecting key information such as:
This initial discussion often provides crucial clues that shape the investigation ahead.
2. Visual Inspection
Our team performs a comprehensive visual check of the consumer unit, sockets, switches, cabling, and any visible connections. This step allows us to spot clear indicators of faults such as:
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Burnt outlets
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Loose connections
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Signs of overheating
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Rodent damage
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Water ingress
In many cases, the fault is physical and easily visible, making repair straightforward. If nothing is visible, we proceed to deeper testing.
3. Systematic Testing with Professional Instruments
Using professional-grade testing equipment, we examine the electrical installation in depth. We carry out tests including:
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Continuity Testing – To ensure cables are unbroken
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Insulation Resistance Testing – To detect leaks in wiring
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Earth Loop Impedance – To confirm safe disconnection times
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RCD and Circuit Breaker Tests – To check protective devices function correctly
All tests are conducted in compliance with BS 7671 wiring regulations.
4. Narrowing Down the Fault
Once testing reveals where the fault lies, we methodically narrow the issue to the precise location. For example, if insulation resistance is poor on a circuit, we begin isolating sections—checking sockets, lighting points, or appliance spurs until we find the root.
Common fault causes we encounter include:
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Short circuits
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Loose connections
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Faulty RCDs or breakers
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Damaged cable insulation
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Overloaded circuits
5. Diagnosis and Clear Reporting
After identifying the fault, our NICEIC-approved electricians provide a clear explanation of the cause and the required remedial action. We offer this in both verbal and written formats, ensuring homeowners and landlords are fully informed.
Where required, we can issue a fault diagnosis report, especially useful for landlords or property managers who may need to present evidence of electrical safety investigations.
6. Repair and Retesting
Once you approve the repair plan, we carry out all remedial works using high-quality parts and tools. Our electricians then retest the system to ensure the fault has been completely resolved and no secondary issues remain.
Only when the installation passes all safety tests do we re-energise the system and confirm the property is safe for continued use.
7. Preventative Advice and Follow-up
The final step is education and advice. After fixing the issue, our experts advise on preventative measures to avoid future faults. This may include:
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Upgrading outdated wiring
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Replacing faulty appliances
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Installing surge protection
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Regular inspection scheduling
We also offer follow-up inspections if necessary, particularly for properties that have ongoing issues or aged installations.
Why Choose NICEIC Electricians?
At NICEIC Electricians, fault finding is not guesswork—it’s a systematic, tested process. Our engineers:
Are fully NICEIC certified
Use the latest diagnostic tools
Follow British Safety Standards
Offer clear pricing with no hidden charges
Serve residential and commercial clients across London
If you’re facing unexplained electrical issues, we’re just one call away. Reach us on 02034882928 or email info@rcdelectrician.co.uk.