Protherm 80E. F1 fault

[chris116]

Hi I've a protherm 80E which after curing a leaking relief valve giving F0 & F1 fault has developed a more persistent F1 fault when using DHW pressing reset clears the fault this now occurs a couple of time a day. My local engineer recommends a replacement boiler for £1200 and appears to be clutching at straws rather than finding the fault items changed so far are gas valve and gas valve PCB diverter valve & relief valve at a cost of £720
Can anyone recommend either a good engineer for Sheffield S21 or provide suggestions of other likely components?
Many thanks in advance

 

[Agile]

British Gas and other firms will do fixed price repairs for about £300 and including parts and labour!

I will be criticised by the other engineers here if I tell you what I think of the engineer you have had there!

Tony

 

[Agile]

Boiler repairs are made by properly diagnosing the fault.

Then replacing the single cause of the malfunction!

Tony

 

[dilalio]

How old is the boiler?
The other conundrum, of course, is how much money and time do you spend on an old, inefficient and perhaps poor quality boiler vs replacing it? You could end up with Trigger's broom

 

[bernardgreen]

I will be criticised by the other engineers here if I tell you what I think of the engineer you have had there!

Real engineers would criticise the actions of that so called "engineer"

 

[chris116]

Hi Guys,
many thanks for the replies, yes his diagnostic skills are u/s he assured me the fault would be either gas valve or valves PCB with no way of identifying the faulty component. It's about 8yrs old so should have some life left & with £700+ thrown at it I'm reluctant to write it off because of an incompetent engineer. What other items left could cause the F1?
Any recommendations for a competent engineer in the Sheffield area? Or is there an area list?
Many thanks again