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F4 fault on an Ideal Icos M3080 -- Help? Any one Know whats this means??

Hi all! Need your help badly! Cant find anything on net about this fault. Basically few days ago my thermstat control had F4 on it. I reset boiler and it worked, but then nxt time i can in from work it had it on again and now its on all the time. Does anyone know what this fault is please! Just annoyed since i recently had my PCB changed and dont want fork out a fortune again. thanks in advance

MickyF
June 2008
IdealIdeal Icos M3080D.I.Y, PlumbingBoiler Thermostat Heating
I had similar problem earlier this year. After several visits from BG engineer problem identified with a blocked condensate trap. Ideal recommend that this is cleared regularly, but BG do not include that as part of the 'service'! Instructions for servicing, including clearing the trap, are included in the installation booklet.

Frankie
July 2008

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Ideal Icos M3080 F4 Fault - Help & Advice