Glowworm Swiftflow 75 Boiler Fault

[steveswiftflow]

Hi,

I have a Glowworm Swiftflow 75 Combi boiler (with SIT Gas Valve) which has recently failed. Whilst running the hot water, the water went cold due to the main burner and pilot light going out. I tried to relight the pilot to no avail; replaced the thermocouple and now the pilot stays alight with the SIT valve in the pilot position only. When however, the gas valve is turned to main burner the pilot valve again goes out.

Any ideas where the fault may lie?

Steve

 

[sooey]

You need a new gas valve (SIT), a PCB and a pump.

Then, when it still doesn't go you'll need someone who's got a clue to do it for you.

 

[gas4you]

Have you checked continuity on the overheat stat? Also check continuity between the thermocouple and the gas valve body. There shouldn't be any.

 

[steveswiftflow]

You need a new gas valve (SIT), a PCB and a pump.

Then, when it still doesn't go you'll need someone who's got a clue to do it for you.

Thanks for your comments.

 

[steveswiftflow]

Have you checked continuity on the overheat stat? Also check continuity between the thermocouple and the gas valve body. There shouldn't be any.

Hi, thanks for your message. Yes I've checked continuity as you describe and all appears to be OK. I think that it could be the control board?

 

[palerider45]

sounds like a dodgy gas valve to me, i cant see it being the pcb as you should be able to get the pilot to light and go to main gas with no power on

 

[namsag]

Yer nothing at all to do with PCB .... gas valve. if overheat stat was faulty pilot would not even stay on in pilot position
When button released on pilot being lit does it come all the way out or do you have to pull it out a bit to turn it to main gas