Thanks George, i have done as you stated. the new fan is fine but still wouldn't run. i traced it back across the control board with a meter and was getting 230v on one side of the flow water switch but not the other. i too the switch out to test it and the boiler lit. the little lever in the flow pipe isn't lifting enough to work the microswitch. as a temp measure i have dropped the microswitch so the bopiler works and just need to get the flow bit sorted now. i take it i can just order that bit from the internet.
The wifes over the moon, thanks very much J
jeff June 2008 |
Is the fan faulty or not? Disconnect the electricity and connect an independent supply to the fan (check the fan requires 230v before connecting) If the fan operates normally then assume it isn't receiving an 'instruction' to start ie . no power so think back along the boiler's logic path - is the flue air pressure switch operating normally?Its points have to be in the correct position or the fan won't run.
Another idea is to check that the circuit board is supplying power to the fan - trace the wires back from the fan to the pcb and check with a meter. If you aren't competent ask someone who is to help you !
George June 2008 |
I have now checked some of the components, the new fan still doesn't spin, its still receiving 1V instead of 230V. I have checked continuity between the control PCB and the ignition PCB and all is fine. I have check the feed across pins 11-4 and its got 230V, but the 11 & 10 shows 1V for the fan. The book states is the control PCB.
any comments?
jeff June 2008 |