Set Appliance State:
| Isolate Mains Power to appliance as per TOPs P4 |
Turn Hot Water Tap On
Ensure appliance is cool
DHW Temperature Selector to MAX
DHW Temperature Selector to MAX
| WARNING! Mains voltage is expected during test, follow TOPs P4 live testing procedure |
Observation:
Reset appliance.
Does the boiler now attempt to fire or does it return to fault code?
Boiler resets and attempts to fire - investigate possible causes of overheat
Boiler resets but a different fault code appears
Boiler returns to fault code
Does the boiler now attempt to fire or does it return to fault code?
Boiler resets and attempts to fire - investigate possible causes of overheat
Boiler resets but a different fault code appears
Boiler returns to fault code
