Ideal Boilers Classic Combi FF 280 Installation And Servicing

Also see for Classic Combi FF 280: Installation and Servicing Manual User guide

Classic Combi FF 280 - Installation3876 PRINTED CIRCUIT BOARD (PCB) REPLACEMENT74 AIR PRESSURE SWITCH (APS) REPLACEMENT75 BURNER ON/OFF AND CH/HW SWITCH REPLACEMENT1. Refer to Frame 64.2. Remove the control box fixing screw, pull the box forwardand downward to disengage.3. Disconnect the 2 electrical leads from the switch.4. BURNER ON/OFF SWITCH ONLYCompress the retaining clips and prise the defective switchout of the front panel.CH / HW SWITCH ONLYa. Pull off the knob.b. Remove the backnut and withdraw the switch.5. Connect the new switch in reverse order. Ensure that theswitch is the correct way round, i.e. with the terminalstowards the right, as shown (burner on/off switch) or thatthe switch is correctly orientated (CH/HW switch). Polarityis immaterialNote. Refer to Frames 93 and 94, 'Exploded Views' for illustration of the procedure detailed below.6. Refit the boiler casing.7. Check the switch operation.SERVICINGSERVICING1. Refer to Frame 64.2. Remove the control box fixing screw. Pull the box forwardand downward to disengage.3. Remove the HT lead from the PCB4. Remove the 4 push-in electrical connectors from the PCB.5. Remove the neutral wire on the PCB from its connection tothe back of the socket inside the control box.6. Remove the earth wire on the PCB from its connection tothe earth stud inside the control box.7. Remove the 2 connections from the on/off switch andremove the switch.8. Compress the barbs on the PCB stand-offs to release thePCB from the box.9. Fit the new PCB and reassemble in reverse order.10. Refit the boiler jacket.11. Check the operation of the boiler.12. Check the ignition operation.1. Refer to Frame 64.2. Remove the control box fixing screw. Pull the box forwardand downward to disengage.3. Pull off both sensing tubes from the APS and remove thecover.4. Remove the 3 electrical connections from the APS.5. Remove the switch from the controls box.6. Connect the new switch in reverse order.7. Refit the control box.8. Refit the boiler casing.9. Check the boiler operation.