Baxi Potterton 21 SL Service Manual download pdf (Page 27)

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 Service

Interval record section of the Benchmark

Commissioning Checklist at the rear of this

publication.

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 (Fig. 47).

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. 48).

7. Note the positions of the two sensing tubes on the

outlet elbow and three wires on the fan motor and

remove them (Fig. 49).

8. Slacken the screws on the outlet sealing collar.

Ease the collar upwards as far as possible (Fig. 50).

9. Remove the four screws securing the combustion

box door and remove the door (Fig. 48).

Fig. 47

Fig. 48

Fig. 49

Fig. 50

Facia Panel

Fan Wires

Fan

Sensing Tubes

Outlet Sealing

Collar

Case Front Panel

Combustion

Box Door

Inner Door

Panel

1 2 ... 22 23 24 25 26 27 28 29 30 31 32 ... 47 48

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Baxi Potterton 21 SL Service Manual Page 27