Set Appliance State:
Mains Power Off
CH Demand
| WARNING! - Mains voltage is expected during test follow TOPs P4 live testing procedure |
Observation:
Reset appliance.
Does the fan run then the burner ignite and establish?
Or does the boiler return to fault code?
Note:
If the burner ignites and establishes and you believe the fault was not caused by overheat click HERE to continue diagnosis using the full model.
Does the fan run then the burner ignite and establish?
Or does the boiler return to fault code?
Note:
If the burner ignites and establishes and you believe the fault was not caused by overheat click HERE to continue diagnosis using the full model.
