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home Fix label Heating label_important Home Heating Systems

what does f4 mean?

how to restart my boiler
s hill, June 2009
home Fix label Heating label_important Home Heating Systemsdone
too little information as too boiler make, model etc.
F4 can be flame failure whilst lit, ie pcb is losing the rectification. could be dirty electrodes , zig igniter, pcb, but with no boiler make....

Andy, July 2009

Fix Fault - Heating

home label Heating label_important Home Heating Systems

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Fix Fault - Heating

home label Heating label_important Home Heating Systems

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