Set Appliance State:
| WARNING! - Mains voltage is expected during test follow TOPs P4 live testing procedure |
Observation:
Reset boiler as necessary.
Tap (do not hold) the middle button on the left hand side of the display - as it is blanked off use a small screwdriver or similar.
Do the digits AF appear on the bottom left of the display?
Tap (do not hold) the middle button on the left hand side of the display - as it is blanked off use a small screwdriver or similar.
Do the digits AF appear on the bottom left of the display?
