Set Appliance State:
Isolate Mains Power to appliance as per TOPs P4
CH/HW switch in HW position
Ensure that the boiler is cold and ready for Pre-heat
Boiler On/Off switch ON
Gain access to PCB (use insulation mat as required)
CH/HW switch in HW position
Ensure that the boiler is cold and ready for Pre-heat
Boiler On/Off switch ON
Gain access to PCB (use insulation mat as required)
| WARNING! Mains voltage is expected during test, follow TOPs P4 live testing procedure |
Observation:
Ensure that upon switching on the boiler ON/OFF,
the relay RLA (fan relay) on PCB 26 switches.
Switching can be observed through clear plastic casing of relay.
the relay RLA (fan relay) on PCB 26 switches.
Switching can be observed through clear plastic casing of relay.
