Hot water sensor fault
Cause: The domestic hot water temperature sensor has failed.
What to do: The sensor needs replacing.
Home / LaFayette / Boiler repair
Annual boiler tune-ups plus igniter, pump and control repair. We reach LaFayette (36862) in about 50 minutes.
What we hear most in LaFayette
| Repair | Typical time | |
|---|---|---|
| Expansion tank service | ~45 min · 3 mo warranty | |
| Control board repair | ~120 min · 3 mo warranty | |
| Annual tune-up | ~75 min · 3 mo warranty | |
| Igniter and flame sensor replacement | ~60 min · 3 mo warranty | |
| Circulator pump replacement | ~90 min · 12 mo warranty | |
| Heat exchanger flush | ~90 min · 3 mo warranty |
Code on the display?
Cause: The domestic hot water temperature sensor has failed.
What to do: The sensor needs replacing.
Cause: The combustion fan is not reaching the right speed.
What to do: The fan needs testing and replacing.
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.
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.
Cause: Gas pressure is weak or the ionization electrode is dirty.
What to do: Reset it. If it continues, the electrode needs cleaning.
Cause: The control sees a flame when the burner is off.
What to do: A technician must check the electrodes and control board.
Typically about 50 minutes after we confirm the booking. You choose a three-hour arrival window and the technician calls before setting off.
The service call is a flat $89 and covers the trip to LaFayette and a full diagnosis. You then get an exact quote for parts and labor before any work starts.