fuses keep blowing

[louisqaz]

hi we have an apollo 30/50 boiler which keeps blowing the 3 amp fuse it seems to happen when the room thermostat is turned i have replaced the thermostat but the problem has not gone away any ideas thanks

 

[Puddle]

If working ok on hot water mode,not likely to be boiler,is pump or anything leaking on c/h motorised valve maybe,inspect wiring connections

imho

 

[louisqaz]

would the suppressor have anything to do with it as this has burnt out

 

[secret squirrel]

I'd first check the motorised valve.....

 

[REDSAW]

would the suppressor have anything to do with it as this has burnt out

????????????????????????

 

[louisqaz]

is that the 3 way valve

 

[RoryD]

Wots a suppressor? disconnect the pump and safely insulte the wire connections and select the heating. If it fires you prob is the pump, if not I would think it your valve