I have a BAXI solo boiler but now the pump over run does not turn off and keeps on running even with room stat and cylinder stat turned down and programmer removed, does anyone have any ideas on reasons and remedies. THANKS
BOILER PUMP over running
- Thread starter TOMJEN
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BOB.DOLE
chrishutt said:
chriss i think it might help the poster if you explained to him how to remedie the problem of the Pump overrun stat and how to unjam it
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does it involve a big hammer. 
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BOB.DOLE said:
Identify the pump overrun thermostat, using manufacturers instructions, test it using the appropriate instrumentation.
If it is found to be defective source a replacement from a reputable boiler spares outlet.
Fit new part using the manufacturers instructions for guidance.
Has it GOT an overrun stat? I know some Solo's don't, at least, and many use the same PCB.... 231711...
In which case it's likely to be contacts welded together on the fan relay on the pcb. New pcb required. Unless Fitz's hammer releases them...
In which case it's likely to be contacts welded together on the fan relay on the pcb. New pcb required. Unless Fitz's hammer releases them...
THANKS to all who replied thought it might be the state just trying to make sure, and thanks to ChrisR PCB is 231711 will change it if not the stat
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Softus said:
That goes without saying.
Everyone knows that.
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