T800

[s4ndy]

Hello everyone, Just seen a thermoking T800 for the first time cutting out on high pressure when unit on heat a live feed to hot gas valve but no earth from micro does any one have a diagram they can send me or is there any common faults on these units i should look for?
Sandy

sandyinperth@btinternet.com

[moggy66]

I thought the T/K's switched the +ve from the micro not the ground,when its not in heat is there 12v to the solinoid then? if not you have a ground fault.

[gravy258]

not much to see on the wiring diagram, micro gives signal, LED10 lights up on relay board +ve to HGS, permanent earth.