Hot water sensor fault
Cause: The domestic hot water temperature sensor has failed.
What to do: The sensor needs replacing.
Needs a technician
Book a repair
Home / Appliances / Boiler
Boiler repair
Annual boiler tune-ups plus igniter, pump and control repair.
| Repair | Typical time | |
|---|---|---|
| Annual tune-uppopular | ~75 min · 3 mo warranty | |
| Igniter and flame sensor replacementpopular | ~60 min · 3 mo warranty | |
| Circulator pump replacement | ~90 min · 12 mo warranty | |
| Heat exchanger flush | ~90 min · 3 mo warranty | |
| Expansion tank service | ~45 min · 3 mo warranty | |
| Control board repair | ~120 min · 3 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
Boiler codes
Fan speed fault
Cause: The combustion fan is not reaching the right speed.
What to do: The fan needs testing and replacing.
Needs a technician
Book a repair
Water pressure too low
Cause: System pressure has dropped below the minimum.
What to do: Top the system up to 12–15 psi. If it keeps dropping, there is a leak.
You can check this yourself
Book a repair
High limit tripped
Cause: The boiler overheated: low water flow, air in the system or a failed pump.
What to do: Check the pressure and bleed the radiators. If it returns, call a technician.
You can check this yourself
Book a repair
Flame not detected
Cause: Gas pressure is weak or the ionization electrode is dirty.
What to do: Reset it. If it continues, the electrode needs cleaning.
Needs a technician
Book a repair
False flame signal
Cause: The control sees a flame when the burner is off.
What to do: A technician must check the electrodes and control board.
Needs a technician
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Flame after gas shut-off
Cause: A flame is still detected after the gas valve closed.
What to do: Turn off the gas supply and call a technician.
Needs a technician
Book a repair
Ignition failure
Cause: No gas supply or a failed igniter.
What to do: Check the gas valve is open and press Reset. If it repeats, call a technician.
You can check this yourself
Book a repair