Thanks Chris, I tried shorting the wires out on the air pressure switch and it fired up first time, do I now need to replace the switch or am I looking for an air blockage elsewhere?
check the flex isnt wired the wrong way round99JASON99 said:MY (APPROXIMATELY 5 YEARS OLD) HALSTEAD FINEST COMBI BOILER SAFETY LOCKOUT LED IS CONSTANTLY SHOWING RED AND THE IGNITION ELECTRODE DOESN'T EVEN ATTEMPT TO SPARK. I HAVE CHECKED THE TROUBLE SHOOTING GUIDE IN THE MANUAL, WHICH SAYS CHECK THE SUPPLY VOLTAGE AND THE PCB FUSES - WHICH ARE ALL HEALTHY - AND IF THEY ARE OKAY REPLACE THE PCB.
FOR ABOUT A WEEK PRIOR TO THIS HAPPENING THE BOILER SEEMED TO FIRE UP FOR ABOUT TEN SECONDS AND THEN WENT OFF, THIS WAS HAPPENING EVERY FIVE TO TEN MINUTES (THE ONLY DEMAND WAS THE RADIATOR IN THE BATHROOM - THE ONLY RAD WITHOUT A TRV).
WE HAVE HAD THIS PROBLEM ONCE OR TWICE BEFORE BUT IT WAS RECTIFIED BY TURNING THE POWER OFF COMPLETELY FO TEN SECONDS AND THE TURNING IT BACK ON AND THIS SOLVED THE PROBLEM.
ANY ADVICE REGARDING THIS PROBLEM WOULD BE VERY WELCOME AS I DON'T REALLY WANT TO REPLACE THE PCB DUE TO THE COST!
99JASON99 said:Sounds expensive, do I need to buy a whole fan assembly or can I refurbish the existing one. If so can anyone recommend a good (cheap) parts supplier. Thanks
I am never comfortable when consumers are trying to give advice
Look under the boiler on the left hand side near the front. You will see a little red button, press it and then try again.
That should get it going but there is some underlying fault causing your problem (overheat)
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