Hi I'm after some help with a Worcester 28si 2 the other night all stopped working ch and dhw just flashing but every time I would reset it keep flashing. Any way cut long story short the pump was not spinning and the drayton room thermostat was constantly asking for heat strange all went together. Any way so I replaced the pump now spinning lovely and replaced the room thermostat so ch is working fine but dhw is still not working it's not even trying to light. I test the flow sensor 2 out side pins 5 v 2.5v across green and black all seems ok. I get 11.88 ohms on the dhw sensor and if I un plug it a turn it on it starts flashing so I am assuming that is ok. So I check harness for continuity all seems ok so I brought a board still the same brand new still sealed in the box correct part number ch works but still no dhw so I'm stuck now. Cant afford to fit new boiler just yet. Only thing I can not check is gas pressure as I'm not a gas man and wouldn't want to mess with something I'm not comptetent in but i would have thought this would be ok as it lights for ch and it's only just been serviced.
Any help would be appreciated
Any help would be appreciated
