Glow worm store 35 f81 code.

[alan48]

Hi all
Got a problem with above boiler, fault code f81 and discharge from vent, central heating working OK.
I think it may be a faulty temp sensor causing overheating, gauge shows 55degrees.
Any thoughts very much appreciated
Cheers .

 

[Last Plumber]

Hi all
Got a problem with above boiler, fault code f81 and discharge from vent, central heating working OK.
I think it may be a faulty temp sensor causing overheating, gauge shows 55degrees.
Any thoughts very much appreciated
Cheers .

I think a Gas Safe registered Engineer is the best bet. They should be able to sort that fairly easily.

 

[alan48]

I think a Gas Safe registered Engineer is the best bet. They should be able to sort that fairly easily.

Thanks, will look into that.

 

[Anil Piplan]

Glowworm engineer couldnt resolve it either. They have changed heat exchanger, diverter valve. And now think the issue might be with the storage tank.

We are without working boiler for 4 weeks now. Any help would be welcomed. Glow wor engineers are completely useless.

 

[DarrenW]

Hi. Appreciate this thread is 9months old now, but was interested if there was a resolution for the F.81 error. I have the same boiler and after 3 cycles of the burner cutting in the boiler goes into error F.81. Only happens on hot water side and is consiistantly after 3 burner cycles. Boiler engineer has been and temp gagues in/out of boiler and tank all ok. Has assummed its a faulty sensor ??

appreciate any update on the original poster issue. thx