GLOW WORM SWIFTFLOW 100 COMBI

[stevo465]

This is a very early model with the constant pilot.

The fan and gas valve were replaced last year and now theres another problem, the flame is dropping out intermittently in both hot water and/or heating mode theres a loud clicking when this happens I assume this is the solenoid on the gas valve. The pcb has been checked for any loose connections all seems ok.

Any help will be appreciated

Thanks

 

[Agile]

It rather sounds as if its overheating but you dont say if the pilot goes out.

We dont give DIY advice on gas/combustion issues on an open forum.

I would be very surprised if the gas valve really needed changing. They are very reliable! More likely as a result of an incorrect diagnosis!

I think my advice would be to get a competent gas reg engineer. But be aware that this is now a pretty old boiler and few will be very interested in repairing one!

They also need properly servicing every year as the constantly turning fan quickly becomes very dirty. If not cleaned then they become unbalanced and the bearings fail.

Tony

 

[stevo465]

Thanks for that tony.

I am a gas safe engineer just need some help on this one, I have carried out several repairs to this boiler so far but this recent fault is a pain.

BTW the pilot stays lit , its as if there is an interuption to the gas valve of electricity!!

Steve

 

[Gasguru]

Join the CC and you'll get all the help you need.

 

[stevo465]

thanks for that but whats the cc?

steve

 

[petit_pablo]

combustion chamber - pm admin with your gsr details. Its a closed forum for gas fitters

 

[nickso]

Check the thermistors, if the plastic bit looks like it is falling out of the brass bit change it/them.

Otherwise it's likely the PCB, particularly if it's the early version with the piggyback board.

 

[Blooflame]

Once you hear that click, the pilot should go out. I'm wondering if whoever worked on your boiler last has "doctored" your boiler. Either way I am betting your boiler is ID because it is overheating and that pilot must go out on that loud click