Electrical fault finding in Wellingborough
Tripping breakers, dead circuits and faults that come and go — traced properly, explained plainly and put right.
Fault Finding
Protection trips for a reason
An RCD that keeps going, a breaker that will not stay in, a circuit that dies when it rains — those are not faults with the protective device. They are the device doing its job, telling you something further down the circuit is wrong.
Fault finding is a process of elimination: isolating circuits, testing insulation resistance, splitting the installation down and narrowing the problem to the accessory, cable or appliance actually causing it. Guesswork gets expensive quickly; testing does not.
We do this for homes, commercial premises and industrial sites across Northamptonshire, on installations we have never seen before as often as ones we wired ourselves.
Scope of work
Faults we trace
The symptoms people call us about, and what is usually behind them.
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Tripping RCDs & breakers
Nuisance tripping narrowed to the circuit, accessory or appliance causing it.
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Dead circuits
Sockets or lights with no supply, traced back through the circuit to the break.
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Intermittent faults
The ones that only happen sometimes — damp, heat, vibration or a loose connection.
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Burning smells & heat
Scorching or heat at a socket, switch or board. Isolate it and call us the same day.
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Water & storm damage
Leaks and flooding into wiring, tested for insulation resistance before re-energising.
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Machine & plant faults
Three-phase supplies, isolators and controls on industrial sites.
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Post-EICR investigation
Further investigation items on a condition report, chased down and resolved.
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Repairs & certification
Once the fault is found we put it right and certify the work, not just diagnose it.
Why AHT Electrical
Why testing beats guessing
Replacing parts until the symptom stops is the expensive way to find a fault.
- Properly test-instrumented Insulation resistance, continuity and loop testing, not a process of swapping parts.
- Qualified in inspection City & Guilds Level 3 qualified in periodic inspection, testing and certification.
- Explained in plain English What failed, why it failed, and whether anything else is likely to go the same way.
- Fixed, then certified The repair is tested and certified to the 18th Edition once the fault is cleared.
- Any installation, any age 35+ years on domestic, commercial and industrial systems across Northamptonshire.
- Available 24/7 If the fault has taken out your power or is unsafe, the emergency line is answered.
Our accreditations: NICEIC Domestic Installer, NICEIC Approved Contractor, City & Guilds, SafeContractor Approved.
Ready when you are
Let's get your electrics sorted
Whether it's a flickering light, a full rewire or an industrial installation, we'll give you a free, no-obligation quote and a straight answer about what needs doing.
- Mobile · 24/7 emergency 07968 914685
- Email us info@ahtelectrical.co.uk
- Covering Wellingborough & Northamptonshire
- Office hours Mon–Fri 8am–6pm
Common questions
Your questions, answered
The questions we are asked most about fault finding work. If yours isn't here, just ask — we don't charge for straight answers.
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My RCD keeps tripping — can I just keep resetting it?
Resetting it once is reasonable. Repeatedly is not. The device is operating because it has detected a fault, and resetting it over and over leaves whatever caused it still there. If it will not stay in, leave it off and call us.
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How do you find an intermittent fault?
By testing rather than waiting for it to happen again. Insulation resistance and continuity testing across the circuits will usually show a fault that is present but not yet severe enough to trip, and the conditions it appears in — damp, heat, load — narrow it further.
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Can you find a fault someone else has given up on?
Often, yes. A fault that has defeated someone usually means the obvious things have been eliminated, which is a head start. With more than 35 years behind us there is not much we have not come across.
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Will you fix it on the same visit?
Where the repair is straightforward and we have the parts, yes. Where it turns out to be something larger — a failed cable under a floor, for example — we will make it safe, explain the options and price the repair properly rather than rushing it.
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Is there a charge if you cannot find the fault?
Talk to us before we come out and we will be clear about how the visit is charged. What we will not do is keep replacing parts and billing for them in the hope that the symptom goes away.
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Something smells like it is burning — what should I do?
Switch off at the consumer unit if it is safe to do so, keep people away from the area, and call the emergency line. Do not wait for office hours and do not re-energise it to see if it happens again.
Free, no-obligation quote
Tell us about the job and we'll take it from there
Answer three quick questions and we'll get straight back to you with honest advice and a clear price. Prefer to talk it through? Call us on 01933 674 191.
- Certified, compliant work NICEIC approved, Part P registered and fully 18th Edition compliant on every job.
- Safe and fully insured SafeContractor accredited with full insurance cover, and risk assessments and method statements (RAMS) supplied when required.
- A real person, quickly Tell us what you need and we will come back to you with a free, no-obligation quote.