Electric Hot Water Not Working? Causes & Fixes
When electric hot water has no hot water, it's nearly always the element, the thermostat, or a tripped supply. Here's what's likely, what's safe to check, and how our licensed team fixes it.
Why your electric hot water stopped
An electric hot water system that's stopped heating almost always has an element or thermostat fault. The heating element burns out over time; the thermostat that controls it can fail or trip on its safety cut-out. A clear sign is hot water tripping the breaker — a failed element often shorts and trips the circuit the moment it's energised. Less commonly it's the off-peak/controlled-load supply not reaching the unit.
Like most faults, electric hot water with no hot water is a repair, not a replacement — unless the tank itself has corroded and failed. Electrical work is licensed work, so the diagnosis and repair are a job for a licensed tradesperson.
What's probably causing it
Ranked by how often we see it — tell us which sounds like yours and we'll come prepared.
Failed heating element
The most common electric fault — the element burns out and the tank stops heating. Often it also trips the breaker when it shorts.
Faulty thermostat
The thermostat controls the element; if it fails or trips its safety cut-out, the element never energises and the water stays cold.
Tripping the breaker
Hot water tripping the breaker usually means a shorted element or wiring fault — a clear sign something needs replacing, not just resetting.
Off-peak / controlled load
On off-peak supply, a controlled-load fault can mean the unit never gets its overnight heating window and runs cold by evening.
Wiring or connection fault
A loose or corroded connection at the unit can interrupt supply and stop the element heating.
Element & thermostat faults fixed in one visit where we can.
What's safe to check — and what isn't
A few checks are safe for anyone; the rest is a licensed gas or electrical job.
What's safe to check yourself
- Has the breaker tripped? Reset it once
- Is the power point / isolator switched on?
- Is an off-peak unit simply out for the day?
- Note whether it trips again immediately to tell us
If the breaker trips straight back, stop — it points to a shorted element and needs a licensed repair.
When to call a licensed pro
- The breaker trips again after resetting
- No power to the unit despite the switch being on
- Any element, thermostat or wiring work
- Burning smell or scorching at the unit
Electrical hot water repairs must be done by a licensed tradesperson.
How we fix electric hot water
The licensed repair, and the fastest path back to hot water.
We test the element, thermostat, wiring and supply, pinpoint the fault, and quote the repair before we start. Elements and thermostats are common parts we carry, so most electric hot water faults are fixed in one visit. If the tank itself has failed, we'll show you replacement options instead of a repair that won't hold.
If your unit is completely cold and you're not sure whether it's electric-specific, our general no hot water guide covers the wider causes.
See also: book a repair · no hot water at all?
Electric Hot Water Not Working? Causes & Fixes questions, answered
If yours isn't here, call — the line's attended 24 hours.
Why is my electric hot water not working?
Why does my hot water keep tripping the breaker?
Can I reset my electric hot water myself?
How long does an element or thermostat repair take?
Is electric hot water work a licensed job?
Repair or replace my electric hot water?
Tell us what's happening — we'll fix it
Call the 24-hour line with your suburb and the symptom, or request a quote. We prioritise no-hot-water call-outs and come prepared with the likely parts.