Glowworm compact 100e no hot water

[Stu777123]

Hi all,

I've been unable to get domestic hot water, the boiler just doesn't fire up when I turn on a hot tap.

Central heating works fine though

I've ordered a new DHW microswitch as it seemed a cheap option to try

Be grateful if anyone could share the common faults that might be causing it.

Fitted a brand new PCB a couple of years back so i doubt it would be this

Thanks for your time

 

[CBW]

Probably more the diaphragm rather than the microswitch. Microswitch easily tested using a multimeter.

 

[Gasguru]

The DHW assemblies leak for fun on these so it's normally best to change the diaphragm, brass cover/gland and microswitch in one go.

 

[Stu777123]

Probably more the diaphragm rather than the microswitch. Microswitch easily tested using a multimeter.

Turns out it was a diaphragm after all, fitted a new one and all working fine now

Thanks for your help

 

[Stu777123]

The DHW assemblies leak for fun on these so it's normally best to change the diaphragm, brass cover/gland and microswitch in one go.

Thanks for your reply, changed the diaphragm and all working perfectly now