Potterton Suprima 30, Installation And Service Instructions Manual

Page: 27 / 37

To Service the Boiler & Component Replacement - Page 27
4.3.4 Burner
Gain General Access - See 4.1
1. Disconnect the electrode lead and earth wire.
2. Undo the fixing screw, hold the burner at the right
hand side and pull forwards to disconnect from the
air box.
3. Unscrew the electrode and transfer to the new
burner.
4. Re-assemble in reverse order, on re-assembly
hook the rear of the locating bracket (1) in place
before locating the front (2).
4.3.5 Injector
Gain General Access - See 4.1
1. Remove the burner - See 4.3.4.
2. Use a 13mm (A/F) or ½" (A/F) socket spanner to
remove the injector.
3. Unscrew the injector, use a new sealing washer on
re-assembly.
If using a flat spanner to remove the injector
See the next section (4.3.6.)
4.3.6 Combustion Chamber Insulation
Gain General Access - See 4.1
1. The front insulation is accessible as the front is
already off.
2. Remove the burner - See 4.3.4.
3. Remove the two screws securing the side and rear
insulation assembly to the front of the chassis.
4. Pull the assembly forwards and away from the
boiler. Replace insulation pieces as required,
replace any securing clip if damaged.
5. Re-assemble in reverse order.