Power keeps tripping in your HDB flat, condo or landed home? TRUST ELECTRICIANS handles power trip repair in Singapore every day. We arrive fast, isolate the actual cause instead of just resetting the breaker, and leave your supply safer than we found it.
No-reset-no-fix policyGet a free written quote
Registrations & certifications you can checkSingapore-registered and EMA-licensed
In Singapore, "power trip" simply means your circuit breaker (MCB) or safety switch (RCCB/ELCB) has switched itself off to cut the electricity supply. Most of the time it is doing exactly what it is designed to do: protecting you from a real fault. The term covers three different situations:
If your electricity keeps tripping, do not keep flipping the switch back on. Each reset is a small stress on an already-faulty circuit, and in the worst case (an active short circuit or earth leakage) it can overheat cables inside the wall.
Tripping RCCBs, overloaded circuits, burnt wires and worn breakers our own electricians traced and fixed in HDB flats, condos and landed homes. Every DB is re-tested under load before we leave.
Breaker tripping right now? Send a photo of your DB box and tell us what was switched on when it tripped.
WhatsApp Your DB PhotoThere are four underlying causes, and a good electrician will test all four before declaring the job done.
Too many high-draw appliances on one circuit, typically the kitchen or the air-conditioning circuit. A common HDB scenario is aircon, water heater and kettle on a 20A circuit.
Tell-tale sign: the trip only happens when a specific appliance is turned on.
A "short" happens when a live wire touches a neutral or earth wire, usually because cable insulation has been damaged by recent drilling, a rodent, water ingress or simply old age. This is the most common reason an HDB circuit breaker will not stay up.
Tell-tale sign: the breaker trips the instant you reset it, sometimes with a small flash or a burning smell.
Related: see our Emergency Electrician Singapore page for short-circuit emergencies and sparking sockets.
Current is leaking to earth through a faulty appliance, wet wiring or a degraded RCCB. The RCCB (or ELCB) is the safety device that detects this and trips first.
Tell-tale sign: the RCCB switch (usually labelled "ELCB") trips, not the MCB.
Related: read more on ELCB / RCCB Installation and the HDB 2nd RCCB requirement.
Sometimes the wiring is fine and the culprit is a failing appliance: a water heater with a cracked element, an old fridge compressor, or a hair dryer with a broken cord.
Tell-tale sign: the trip clears when the suspect appliance is unplugged.
Water heater the suspect? See our Water Heater Installation & Replacement page.
From RCCBs that trip every evening to breakers that would not stay up, here is what Singapore homeowners and businesses say about us on Google.
If you want to try one safe reset before calling us, follow this exact order:
Stop resetting it. Leave the circuit off, keep away from any warm or scorched fitting, and call us. We pick up 24/7 and can usually be with you in 30–60 minutes for HDB and condo units.
HDB flats in Singapore have specific failure patterns worth understanding. Knowing your flat type tells us where to look first.
They typically run 8–12 ways on a single-phase supply, often 40A. If you have added multiple air-conditioning units, a dryer or an instant water heater, the original DB may simply be undersized. We routinely upgrade HDB DB boxes from 8-way to 16-way or 24-way.
DB Box Electrician SingaporeOften 40A (30A in some older blocks), it can trip if your cumulative load exceeds what SP Services has approved. If your trips happen at the main switch (not the smaller MCBs), you may need an HDB electrical loading check.
Power Failure SingaporeThese generally have RCCB + MCB on every circuit and a dedicated kitchen circuit. Trips in BTO units are most often water-heater related, especially after the heater has been in service for 8+ years.
Water Heater Installation & ReplacementThese often have ageing wiring that is now overloaded with modern appliances. The safe long-term answer is full or partial rewiring.
Residential Rewiring SingaporeWhen you call TRUST ELECTRICIANS for a power trip, here is what we actually do. Not just the reset.
Islandwide Singapore, no travel surcharge. For landed properties and private estates, we have the same islandwide footprint and response times.
Straight answers about resets, HDB loading, call-out times, CoC and cost.
It means your circuit breaker (MCB) or safety switch (RCCB/ELCB) has automatically switched off to cut the electricity supply. It is a safety response: the breaker is protecting your home from overload, short circuit or earth leakage.
The trip itself is the safety feature working. The danger is in ignoring a repeated trip and forcing the breaker back on. That can lead to overheated cables, melting insulation or, in the worst case, an electrical fire. If a trip will not reset, treat it as urgent.
Once or twice, yes, while you isolate the cause. If a third reset fails, stop. There is an active fault that needs a licensed electrician with proper test instruments.
If the main switch (the big one) trips, especially under evening load when aircons and water heaters run together, it may be an SP-approved loading limit. We do an HDB electrical loading check as part of our diagnosis. See Power Failure Electrician Singapore for the full picture.
For most HDB towns we can be on site within 60–90 minutes during working hours, and within 2 hours for after-hours emergencies. For genuine sparking or burning-smell emergencies, see our 24/7 Emergency Electrician Singapore page.
Only if we replace or modify fixed wiring (cables, DB box, RCCB, etc.). A simple like-for-like MCB swap usually does not require a CoC. We will tell you upfront if a CoC is needed for your job.
Most simple HDB power trip jobs (diagnosis plus a reset or one-part replacement) fall in the $80–$260 range. Full DB upgrades or concealed-cable fault-finding can run $850–$1,400+. See our Price List for full rates.
Tell us which switch tripped and what was running at the time. TRUST ELECTRICIANS Singapore will reply with the next available slot and a clear price range. Licensed, LEW-endorsed and warranty-backed.
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