Keston Combi 35kw User Manual download pdf (Page 48)

SERVICING

Keston Combi - Installation and Servicing

Note. Fit the earth strap provided with the PCB

to your wrist and a suitable earth on the boiler

chassis.

1. Refer to Frame 45.

2. Remove the main PCB, refer to Frame 57.

3. Unclip the PCB and lift to clear the mounting

posts.

4. Fit the new PCB ensuring the 4 potentiometer

spindles line up with the control knobs which

must be in a vertical position.

5. Reassemble in reverse order.

6. Check operation of the boiler. Refer to Frame

36.

USER CONTROL PCB REPLACEMENT

DHW FLOW TURBINE SENSOR REPLACEMENT

1. Refer to Frame 45.

2. Remove condensate trap/siphon. Refer

to Frame 56.

3. Lift off the ow turbine sensor plastic

retaining clip.

4. Unplug the electrical connection and

transfer to new turbine sensor.

5. Reassemble in reverse order.

6. Check operation of the boiler. Refer to

Frame 36.

Potentiometer spindle

Control Knobs (to be in vertical position)

PCB

SERVICING

1 2 ... 43 44 45 46 47 48 49 50 51 52 53 ... 71 72

No comments

Keston Combi 35kw User Manual Page 48