Baxi Potterton 47-393-39, 47-393-40, 47-393-41, 47-393-42 14.22 P.C.B. Fig, Selector Switch Fig

Control Box Cover

Fig. 97

P.C.B.

Selector

Switch

Facia

Selector Switch Knob

Fig. 98

14.0Changing Components

14.22P.C.B. (Fig. 98)

1. Note the settings of the temperature control knobs, rotate them fully anticlockwise and carefully pull them off the drive pins.

2. Completely undo the screws securing the control box cover and release the cover retaining barbs from their slots. Disengage the rear of the cover from the control box hinge pin (Fig. 97).

3. Note the position of all plugs and wires on the P.C.B. and disconnect them.

	4.	Undo the securing screws and remove the P.C.B. Transfer
	the control knob drive pins to the new P.C.B. and turn them
	fully anticlockwise.
	5.	Reassemble in reverse order, ensuring that the
	temperature controllers are reset to their previous positions.
	14.23 Selector Switch (Fig. 98)
	1.	Note the setting of the selector switch knob and carefully
	pull it off the facia.
Drive Pins	2. Completely undo the screws securing the control box
	cover and release the cover retaining barbs from their slots.
	Disengage the rear of the cover from the control box hinge
	pin (Fig. 97).
	3.	Note the position of the electrical connections and the
	orientation of the switch. Remove the electrical connections.
	4.	Remove the screws securing the switch to the facia panel.
	5.	Fit the new switch, ensuring that it is correctly positioned
	and reassemble in reverse order.
Temperature Control	Knobs

© Baxi Heating UK Ltd 2012 49