No ignition
Cause: No gas supply, air in the gas line or a failed igniter.
What to do: Check the gas is on, then turn the unit off and on. If it repeats, call a technician.
You can check this yourself
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Home / Appliances / Water heater
Water heater repair
Tank and tankless water heaters: elements, thermostats, gas valves and descaling.
| Repair | Typical time | |
|---|---|---|
| Heating element replacementpopular | ~50 min · 3 mo warranty | |
| Thermostat replacement | ~40 min · 3 mo warranty | |
| Anode rod replacement | ~40 min · 3 mo warranty | |
| Thermocouple / gas valve replacement | ~60 min · 3 mo warranty | |
| Tank flush and descalingpopular | ~60 min · 1 mo warranty | |
| Tankless descaling service | ~75 min · 1 mo warranty |
Every visit starts with a flat $89 service call. After the diagnosis you get an exact quote for parts and labor, and you decide before any work starts.
Error codes
Water heater codes
Flame loss
Cause: The flame went out during operation.
What to do: Check the gas supply and vent. If it repeats, the flame rod needs cleaning.
Needs a technician
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Poor combustion
Cause: The burner is not burning correctly: wrong gas pressure or blocked vent.
What to do: A technician must check gas pressure and venting.
Needs a technician
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Scale build-up
Cause: Limescale has built up in the heat exchanger.
What to do: The unit needs a descaling flush.
Needs a technician
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Condensate drain blocked
Cause: The neutralizer or condensate line is clogged.
What to do: Check the condensate line for kinks or blockages.
You can check this yourself
Book a repair
Combustion fan fault
Cause: The fan is not running correctly.
What to do: The fan needs testing and replacing.
Needs a technician
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Blocked exhaust
Cause: The vent is blocked or the heat exchanger is restricted.
What to do: Check the vent outside. If it is clear, call a technician.
You can check this yourself
Book a repair
Not enough water flow
Cause: The flow is below the minimum needed to fire the burner.
What to do: Open the hot tap further and clean the inlet water filter.
You can check this yourself
Book a repair