Transformer/Pcb; Replacing The Control Panel - Bosch Condens 5000W Installation And Maintenance Instructions Manual

6.8.13 Transformer/PCB

Refer to figure 100.
▶ Disconnect all electrical connections from the control.
1. Remove five screws retaining the rear panel of the control.
2. Remove the rear panel.
3. Remove the transformer cover.
1.
1.
3.
Fig. 100 Transformer/PCB access
Refitting the control board cover:
▶ Ensure that all wires are fully within the control board.
▶ Align the front right hand corner of the cover with the front right hand
corner of the control board.
▶ Align the rear right hand.
▶ Holding the cover level, slide the cover onto the control board,
ensuring that the incoming cables, at the top, are held clear.

6.8.14 Replacing the control panel

NOTICE:
Control panel replacement
▶ Do not replace the control unit if a calibrated CO/CO
available.
The control panel is supplied within its plastic housing. The complete
unit must be replaced.
Refer to figure 101.
1. Remove all electrical connections from the control panel PCB
including where cables run through restraints. These can be
unclipped from the plastic moulding noting their position.
2. Carefully remove the system pressure gauge from the fascia by
parting the plastic retaining lugs securing the gauge in place. Take
care not to damage or kink the capillary tube.
Bosch Condens 5000W – 6 720 646 195 (2018/10)
2.
1.
1.
1.
analyser is NOT
2
3. Remove the code plug. The code plug should be left attached to the
frame of the boiler by its plastic safety thread.
3.
Fig. 101 Control panel replacement preparation
Refer to figure 102.
1. Remove the three screws retaining the front fascia making sure to
support the fascia when removing the last screw.
2. Remove the front fascia.
1.
1.
2.
Fig. 102 Fascia removal
Refer to figure 103.
1. Using a suitable tool, press the button upwards.
2. Slide the control support bracket to the left.
2.
1.
Fig. 103 Release control panel
Servicing and spares
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2.
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