Water Heater Not Working? Quick Checks First

Nothing wakes you up like a cold shower you didn't ask for. One day the water heater works fine, the next you're standing there shivering at 6am, wondering if it's dead for good or just sulking.

Good news: a lot of water heater faults are small, and you can rule them out yourself in five minutes. Some of these checks have saved people a whole call-out fee. Run through them before you pay anyone — then, if it's still cold, you'll know it's a real repair and you'll be able to spot an honest quote from an inflated one.

Quick answer: Check it's switched on, reset the breaker once, and give a storage tank 15–40 minutes to heat. If it still won't warm up — or it keeps tripping the breaker — stop and call a verified technician. A service call runs Rp 100.000 to Rp 250.000; a new heater installed starts around Rp 1.200.000.

Safety: Water heaters mix electricity (or gas) with water under pressure. Every check below is low-risk and external. The moment a fix involves opening the unit, touching wiring, or you smell gas — stop and call a pro. No hot shower is worth a shock or a leak.

First, what kind of heater do you have?

This changes everything about troubleshooting. The fix for a tripped breaker is nothing like the fix for an empty gas bottle.

• Electric storage — a tank on the wall, common in villas and apartments. Heats a reservoir and holds it warm.
• Instant electric — a small box right by the shower, heats on demand. Popular in newer Bali kosts and bathrooms.
• Gas (LPG) — fed from a tabung gas, still common in older Jakarta homes. Heats water as it flows.
• Solar — tank on the roof, usually paired with an electric backup element for cloudy days.

Find yours before you start. Look for a brand and model sticker on the unit — handy to have ready if you do end up calling someone.

Quick checks for electric heaters

Start with the boring stuff. It's boring because it's usually the answer.

• Is it actually on? Many heaters have their own switch, or a wall socket switch nearby. Check it's flipped on and the indicator light is lit. Cleaners and housemates knock these off all the time.
• Check the breaker. Go to your MCB box. A heater pulls a lot of current and often sits on its own breaker. If one switch is halfway or down, flip it fully off, then firmly on. If it trips again immediately, stop. That's a fault, not a fluke — see the safety note below.
• Give it time. A storage tank needs 15 to 40 minutes to heat from cold after being switched on. If you only just turned it on, make a coffee and wait.
• Test the temperature dial. Someone may have spun it down to minimum. Turn it up and wait.
• Listen and look. Clunking, popping, or rusty water from the hot tap can mean sediment buildup or a failing element. Note it for the technician — it speeds up their diagnosis.

If the breaker holds, the light is on, you've waited, and it's still stone cold, the heating element or thermostat is the likely culprit. That's a service call, not a DIY job.

Safety: A heater that trips its breaker the instant you reset it usually has a shorted element or water reaching the wiring. Do not keep resetting it. Each forced reset risks the element, the wiring, and you. Switch that breaker off and leave it off until a verified electrician or technician looks at it.

If the breaker keeps going even with the heater off, the fault may be elsewhere on the circuit — our guide to an MCB that keeps tripping walks through how to narrow it down safely.

Quick checks for gas heaters

• Is there actually gas? Lift the tabung. Suspiciously light means empty. It happens far more than people admit.
• Pilot or ignition. Many units click to ignite. No click, no flame? Could be a dead battery in the igniter, a clogged jet, or low gas pressure. Some take two AA batteries you can swap yourself.
• Smell test. If you smell gas at all, don't light anything, don't flip any switch. Turn off the regulator on the bottle, open the windows, and call a professional. This one is non-negotiable.
• Water flow. Many gas heaters only fire when water flow is strong enough. Weak pressure — often a pump problem — can stop ignition entirely. If your taps are also weak, fix the water pump first.

What repairs and replacements cost in 2026

If the checks don't fix it, here's what to expect in Bali and Jakarta.

Prices in central Jakarta sit a touch above Bali, and night or weekend call-outs add a premium. Always ask for labor and parts split out so you can see what you're actually paying for.

Pro tip: A heater over eight years old that's failing usually isn't worth repairing twice. Ask the technician for an honest call on repair versus replace — and get the price for both before they touch anything. A good one will tell you straight.

Why hot-water jobs are a trust minefield

Here's where it gets tricky. A water heater is one of those jobs where you genuinely can't judge whether the quoted part was needed. Did the element actually fail, or did they just want the sale? You can't see inside the tank. You're trusting their word on a part you'll never inspect.

This is the whole point of Solvo. The pricing stays in your hands. You set the price — fixed or a range — and KTP-verified masters bid for it, so you compare several real offers instead of trusting one walk-in quote. Your money sits in escrow until you've run the hot tap yourself and confirmed it works. The job can't start until you give the master your 4-digit PIN, so you're always the one who decides when the meter starts. And clients pay no platform fee — the commission comes from the master's side. Want to read exactly how the verification works? The FAQ covers it. Solvo launches in September 2026.

Make your heater last longer

A few habits stretch the life of any heater:

• Flush sediment every couple of years if your water is mineral-heavy (much of Bali is).
• Don't set the thermostat to maximum permanently — it stresses the element and scales faster.
• Switch storage heaters off when you're away for days; no point heating water for an empty house.
• If the breaker trips even once, note when and what was running. Patterns help the technician.