

Emergency Fault Finding in Haywards Heath
When the power keeps dropping out and nobody can say why, you need an electrician who tests until the fault shows itself. Our emergency electricians trace it circuit by circuit, explain what has failed in plain English and put it right, usually on the same visit.
- 24/7 emergency call outs
- Part P registered electricians
Getting straight to the root of the problem
When an electrical fault occurs, you need a dependable electrician who can act fast and get straight to the root of the problem. At On Call Emergency Electricians, we are experts in electrical fault finding across Haywards Heath and Mid Sussex, delivering fast and professional solutions when you need them most.
Whether it's a power outage, wiring fault or defective equipment, our experienced team is available 24 hours a day to diagnose and resolve issues quickly, often within the first hour, with the aim of fixing the problem on the first visit.
Every emergency call begins with systematic testing using calibrated electrical test equipment. We isolate circuits, inspect accessories, test continuity and insulation resistance, verify earth fault loop impedance where appropriate, and identify the root cause before recommending repairs.
- Experience17 years of electrical fault finding
- Test equipmentProfessional Megger multimeter
- Finding the faultUsually within the first hour on site
- MaterialsCarried on the van for same visit repairs
- PricingRepair price agreed before work starts
Fault keeps coming back?
Intermittent faults need proper testing. Call us and we will track it down.
Faults we find most often, and how we fix them
These are the faults behind most of our emergency call outs. For each one, this is how we find it and how we put it right.
- An RCD that will not reset Usually current leaking to earth from a damp fitting, a damaged cable or a faulty appliance. We split the circuits, insulation test each one and repair or replace whatever is leaking.
- A breaker that trips under load Either an overloaded circuit or a short between conductors. We check what the circuit is carrying, test between line and neutral, then repair the damage or spread the load.
- A dead socket or lighting circuit Often a loose or burnt connection in a socket, switch or junction box. Continuity testing narrows it down to where the circuit breaks, and we remake or replace the connection.
- Burning smells and hot fittings Overheating at a loose terminal or an overloaded accessory. We isolate the circuit, find the hot spot and replace the damaged fitting and any heat damaged cable.
- Damaged hidden cables Nails, screws and rodents damage cables inside walls and floors. Readings taken at different points show which length is damaged, and we replace it or rejoin it with maintenance free connectors.
- Faults that come and go Trips at night or only in wet weather point to timers, immersion heaters, storage heaters or outdoor fittings. We test the likely suspects and, if needed, come back to test in the conditions that cause it.
The test equipment we use
Every fault finding job starts with our Megger multimeter, a professional electrical test instrument. It measures insulation resistance at up to 1000 V, which is how we find current leaking from a damaged cable or a damp fitting, and continuity down to a hundredth of an ohm, which shows where a circuit has broken or a connection has worked loose.
Its non-trip loop test checks the earth fault path without setting off your RCDs, and it times every RCD, so we can prove each one switches off quickly enough. The readings are recorded and go on your paperwork, not just ticked off.
Alongside the tester, our vans carry the materials most repairs need: cable in the common sizes, sockets, switches, junction boxes and connectors, plus breakers, RCDs and RCBOs to suit the consumer units we see every week. That is why most faults are fixed on the first visit.
- Megger multimeterInsulation, continuity, loop and RCD testing in one instrument
- Voltage indicator and proving unitProves a circuit is dead before any cover comes off
- Leakage clamp meterMeasures small earth leakage currents without switching circuits off
- Cable tracerFollows hidden cables through walls and floors to the damaged length
- Stocked vanCable, accessories, breakers, RCDs and RCBOs for same visit repairs
How long does it take to find a fault?
Every fault is different, but these are realistic times for the faults we see most. We keep you updated as we go and agree the repair price before any work starts.
A faulty appliance tripping the RCD
Unplugging and testing items one at a time usually finds the culprit quickly.
A dead socket or lighting circuit
Continuity testing leads us to the loose or burnt connection.
Water in a fitting or junction box
Finding it is quick. Drying out and retesting can take longer.
A damaged cable in a wall or floor
Testing from several points narrows down the damaged length.
Getting healthy circuits back on
We isolate the faulty circuit early, so the rest of the power can go back on while we test.
Faults that come and go
Faults that only appear at night or in the rain may need testing in those conditions, or a return visit.
What happens when you call our Haywards Heath emergency electricians
Tell us the symptoms
What trips, when it trips and what was switched on. It often points us to the right circuit before we arrive.
Make safe and isolate
We prove circuits dead before working, isolate the faulty one and get the rest of the power back on.
Test and pinpoint
Insulation, continuity and loop tests with the Megger multimeter narrow the fault to one fitting, joint or length of cable.
Repair, retest and record
The fault is fixed with parts from the van, the circuit is tested again and the readings go on your paperwork.
Fixed properly, finished neatly, across Haywards Heath
Fault finding in Haywards Heath: your questions
How long does emergency fault finding take?
Most faults are found within the first hour on site. Simple faults, such as an appliance tripping the RCD, often take 15 to 30 minutes, while a damaged cable inside a wall or an intermittent fault can take longer. We keep you updated as we go.
How much does fault finding cost?
We explain our call out charge on the phone before we set off. Once the fault is found, we give you a fixed price for the repair and only start when you are happy with it.
What test equipment do you use?
Our main instrument is a Megger multimeter, which measures insulation resistance, continuity, earth fault loop impedance and RCD trip times. We also use an approved voltage indicator, a leakage clamp meter and a cable tracer.
Can you find a fault that only happens now and then?
Yes, although intermittent faults can take longer. Tell us when it happens, for example at night, in wet weather or when a particular appliance runs. We test the likely circuits and, if needed, come back to test in the same conditions.
Can you fix the fault on the same visit?
Usually, yes. Our vans carry cable, sockets, switches, connectors, breakers and RCDs, so most repairs are finished on the first visit. If a special part is needed, we make everything safe and come back to finish.
Do you cover fault finding across Mid Sussex?
Yes. Our emergency electricians find and fix faults across Haywards Heath, Lindfield, Cuckfield, Burgess Hill and the surrounding villages, 24 hours a day.
More emergency electrician services in Haywards Heath
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Read morePower Cuts & No Power
Lights out across the whole property, or just half of it? We find out whether the fault is yours or the network's, trace the cause with proper test equipment and get your power safely back on.
Read moreBurning Smells & Scorching
A fishy or plasticky burning smell, a hot or buzzing socket or brown scorch marks around a switch are signs of an overheating connection.
Read moreNeed an emergency electrician in Haywards Heath?
Call any time, day or night. A local Haywards Heath electrician will answer, give you an honest arrival time and agree the price before any work starts.