User Control Pcb Replacement - IDEAL LOGIC + Combi 24 Installation And Servicing

57 UsER CONTROL pCB REpLACEMENT

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 56.
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 Frames
32-36.
4
PCB
Control Knobs (to be in vertical position)
58 DhW FLOW TURBINE sENsOR REpLACEMENT
1. Refer to Frame 45.
2. Remove condensate trap/siphon. Refer
to Frame 55.
3. Lift off the flow 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
Frames 32-36.
+
Ideal Logic Combi -
SERVICING
Installation and Servicing
3
Potentiometer spindle
4
3
47