Just had my boiler service and the engineer said he could not open the burner to clean ignition. He said the screws had seized and did not want try any harder. Has this ever happened and is there something that can be done so it gets a proper service ?
Never heard of that before - they normally come off quite easily. Tell him to get a bigger spanner, or alternatively call someone else/Vaillant out to service it
Is this something they are ment to do in every bog standard 360 service. Meaning some engineers are lazy, or do you get what you pay for with different levels of service ?
The ignition electrodes use 4 mm stainless steel hex cap screws and they are rarely any problem getting them out. The metal is very tough and would not normally shear off.
The combustion chamber should be opened about every third years and the seal renewed. More frequently if the combustion test indicates a problem. They use four 5 mm bolts which are steel and could shear off but that would be very unusual. Again they are not normally any problem.
But when I replace either of these screws I put silicone grease on the threads. They then come out easily. Doubt many others do that though.
The ignition electrodes use 4 mm stainless steel hex cap screws and they are rarely any problem getting them out. The metal is very tough and would not normally shear off.
The combustion chamber should be opened about every third years and the seal renewed. More frequently if the combustion test indicates a problem. They use four 5 mm bolts which are steel and could shear off but that would be very unusual. Again they are not normally any problem.
But when I replace either of these screws I put silicone grease on the threads. They then come out easily. Doubt many others do that though.
No just a local third party engineer. Should it be extra to open and clean and renew seals then as it only gets done every 3 years. So the third year service should cost more ?
Which you was in Liverpool Agile hard to find a good engineer. Ive got British Gas on 8 houses what costs me a bomb. But trying to get 3 good engineers I can call incase of breakdowns and over the past 7 years I have still got non in my .
Agile again ffs, you keep talking and then other engineers get it in the neck when they visit because you give the wrong information!!! Seal change is every 5 years! The nuts never shear off! Don't put silicon grease on use copper slip! If you cant give right info then dont give any!!
Vaillant say the seals should last up to five years.
But some engineers like to open them sooner. I only said "about three years". If I said five years then anyone reading here would then complain if their engineer decided to do it sooner.
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