FAN VOLTS 50 DEGREE LIGHT

Set Appliance State:

Mains Power Off

Gas Off

Set Multimeter to AC Volts

Turn Hot Water Tap On

Selector switch to OFF position
CH temperature selector to minimum
DHW temperature selector to maximum

WARNING! - Mains voltage is expected during test follow
TOPs P4 live testing procedure

Mains Power On

Measurement:

Selector switch to DHW position.
Measure voltage across the live (brown wire) and the neutral (blue wire) connections at the fan.

Note:
The mains voltage should be present for greater than 5 seconds, if the voltage is not present for at least 5 seconds then select the "mains voltage absent" outcome below.