Potterton SIRIUS FS Installation & Servicing Instructions Manual page 58

7.3.10 High Temperature Burner Door Limit Thermostat
Before operating the boiler after replacement of this thermostat, inspect the insulation
attached to the inside of the heat exchanger door , to ensure that it is complete and
undamaged. Failure to do so could result in permanent damage.
7.3.11 Spark Generator
Power connector
Sirius FS
- See section 7.2 (item 3) for access
- Remove the front access door using a flat bladed screwdriver to release
the catches at the top of the door. Lift the top of the door outwards and
then upwards to remove it
- Unplug electrical connectors from either side of the thermostat
- Unscrew body of thermostat from heat exchanger door
- Replacement is the reverse
- See section 7.2 (item 3 for access)
- Remove the front access door using a flat bladed screwdriver to release
the catches at the top of the door. Lift the top of the door outwards and
then upwards to remove it.
- Unplug the power connector and ignition lead from unit
- Remove screws fixing the generator to the metal back plate
- Remove unit
- Replacement is the reverse
Fixing screws
56
Ignition lead
GB/IE