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possible cause it says check thermistors are connected to pipes correctly air in the system or system is too restrictive

hello everbody i have problem with my glow worm flexicom hx15 boiler it keeps going off after about 10 - 15 mins shows fault f25 done what it said in the manual still not working

thanks for that i thought there was something different you had to look out for,always pays to check thanks :D :D

i want to take off the radiator to decorate it has a trv on it,just switching it to off on the valve is that enough or will it still leak when rad is off.