Servicing - Potterton Performa System 12 HE Installation & Service Instructions Manual

11.0 SERVICING

11 .1 Annual Servicing
1. For reasons of safety and economy, it is
recommended that the boiler is serviced annually.
Servicing must be performed by a competent person.
2. After servicing, complete the relevant section of the
"Benchmark" Installation, Commissioning and Service
Record Log Book. This should be in the possession
of the user.
3. Ensure that the boiler is cool.
4. Ensure that both the gas and electrical supplies
to the boiler are isolated.
5. Slacken the screws securing the facia panel. Lift
the outercase panel so that its securing tabs are clear
of the facia. Remove the panel, allowing the facia to
hinge down (Fig. 35).
6. Remove the screws securing the inner door panel.
Lift the panel slightly to disengage it from the studs on
top of the case (Fig. 37).
7. Note the positions of the two sensing tubes on the
fan spigot and three wires on the fan motor and
remove them (Fig. 36).
8. Slacken the screws on the fan spigot outlet pipe
clamps. Ease the clamps inwards over the pipe.
9. Draw the outlet pipe away from the boiler.
10. Remove the four screws securing the combustion
box door and remove the door (Fig. 37).
Publication No. 5111817
Fig. 35
Securing Screws
Fan Wires
Sensing
Tubes
Ease Fan Spigot Outlet
Pipe Clamps Inwards
28 model
Fan Spigot Outlet Pipe
Fig. 36
12,18,24
model
Combustion
Box Door
Inner Door
Case Front Panel
Facia Panel
Fan
28 model
Fig. 37
Panel
29