Electric Water Heater Problems: No Hot Water or Leaking?
Most electric water heater faults come down to a few causes: no power reaching the heater, a failed heating element, a faulty thermostat, or a leak from a fitting, the safety valve or the tank itself. Some are fixed by replacing a part; others mean the heater has reached the end of its life.
The heater is not heating
No power to the heater
First check that the heater breaker in the panel has not tripped and the heater switch is on. If the breaker trips every time the heater is switched on, there is likely a short or leakage in the element or wiring, so do not keep resetting it.
Failed heating element
The element is the part that heats the water. It can burn out or become coated with scale, leaving the water cold or lukewarm even though power is reaching the heater.
Faulty thermostat
The thermostat controls the temperature. When it fails, the water may not heat at all or may overheat, and both need checking.
Hot water runs out quickly
One of two elements may have failed, scale may have built up at the bottom of the tank and reduced its usable capacity, or the heater may simply be too small for the household.
The heater is dripping or leaking
- Safety valve: water from the pressure relief valve can mean too much heat or pressure in the tank, or a faulty valve. Never block this valve.
- Fittings and pipes: drips at the inlet or outlet usually come from a loose joint or worn washer and can normally be fixed without replacing the heater.
- The tank itself: water coming from the body or base of the heater, often with rust, usually means the tank has corroded, and replacement is normally the practical option.
Safe steps before calling a technician
- Switch off the heater at the breaker before touching anything near it.
- If there is a clear leak, close the cold water valve feeding the heater.
- Put a container under the drip and take a clear photo of where it is coming from; it helps the technician bring the right part.
- Do not remove the element or thermostat cover yourself; there are live connections behind it.
Repair or replace?
Repair usually makes sense when the fault is the element, thermostat, safety valve or fittings and the tank is sound. If the tank itself is leaking, faults keep recurring on an old heater, or it is too small for your needs, replacement may be better value in the long run. We explain this after inspecting rather than assuming the answer in advance.
See our water heater repair and installation in Riyadh, and if the leak is in the pipes around the heater, see pipe and leak repair.
Frequently asked questions
Why is my water heater making a popping noise?
Usually scale at the bottom of the tank with water heating underneath it. Maintenance can reduce this, and a technician can tell whether the tank is still in good condition.
Is water from the safety valve normal?
A few drops while heating can happen, but a steady flow needs the thermostat, pressure and valve checking.
How long does a water heater repair take?
It depends on the fault and part availability. Replacing an element or thermostat is different from replacing the whole heater, and we explain this after checking.
Need a water heater technician in Riyadh?
Send a photo of the heater, where the problem is and your district. We work Saturday to Thursday, 6:30 AM to 11:30 PM, and Friday, 2:00 PM to 11:30 PM.