Set Appliance State:
Mains Power Off
Turn Hot Water Tap On
Operating Switch in Water position
| WARNING! - Mains voltage is expected during test follow TOPs P4 live testing procedure |
Observation:
Does the boiler react to a DHW demand?
(Does the indicator light illuminate, or if this has already been diagnosed as faulty does the pump / fan begin to run).
(Does the indicator light illuminate, or if this has already been diagnosed as faulty does the pump / fan begin to run).
