Halstead Ace HE35 Radiators Warm up When Hot Tap is Running? Help and information on all topics relating to your central heating, air conditioning and ventilation issues.

[exterminatordol]

Hi, over the last couple of days we've noticed that after taking a shower or running the hot tap our radiators are warm. There are no fault codes showing, I am assuming that there must be a dodgy valve of some kind but would really like some advice on where to look before I start. Thankyou