User Control Pcb Replacement - IDEAL Independent C24 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 47.
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 34 &
35.
4
PCB
Control Knobs (to be in vertical position)
58 REpLaCINg ThE MEChaNICaL TIMER
1. Remove the boiler front panel. Refer to Frame 39.
2. Pull out the plate with timer attached.
3. Disconnect 5 way connector.
4. Remove programmer and fit new programmer
5. Re-fit 5 way connector.
6. Push fit mechanical timer into housing
7. Replace the front panel ensuring a good seal is
made.
8. Check operation of the boiler. Refer to Frames 34 &
35.
note. To program refer to user guide at rear of this
book.
44
sERVICINg
3
Mechanical
Programmer
3
Potentiometer spindle
2
1
GRAS SLIN
Independent -
Installation and Servicing
3G9985