Set Appliance State:
| Isolate Mains Power to appliance as per TOPs P4 |
Gain access to PCB (use Insulation Mat as required)
Disconnect timer / programmer from connector CN5 & make safe
Link out connector CN5 with a wire link
Disconnect timer / programmer from connector CN5 & make safe
Link out connector CN5 with a wire link
| WARNING! - Mains voltage is expected during test follow TOPs P4 live testing procedure |
Observation:
Cancel purge cycle & If required, reset boiler.
With timer / programmer linked out, does the boiler now respond to a
CH demand (see note)?
Note.
If boiler responds with a wire link across CN5 terminals, remove wire link
but do not refit the wires which were removed in "Set Appliance State" then select "Boiler now responds to a CH demand".
With timer / programmer linked out, does the boiler now respond to a
CH demand (see note)?
Note.
If boiler responds with a wire link across CN5 terminals, remove wire link
but do not refit the wires which were removed in "Set Appliance State" then select "Boiler now responds to a CH demand".
Isolate as per TOPs P4
and refit as necessary