Boiler over pressurised.

[conny]

My daughter lives in rented accommodation and just before Christmas an engineer came to repair a small leak on the combi boiler. The leak stopped for a while then a few days ago it started again. She contacted the letting agency who again sent the engineer out, (same one), who this time said she really needed a new boiler as this one was on its last legs. He reduced the leak but couldn't stop it completely. Last night, (Thursday), there was a bang and the sound of roaring started coming from the boiler. Fearing the worst they grabbed the kids out of bed at 1.00am and sat in the car across the dual carriageway from the house and rang me. I went round and on getting out my car could here this noise from about 30 yards away. Went into the house and as I did so noticed water spurting out of the pressure release pipe. My daughters partner had turned off the electric and gas to the boiler before they ran out. When I looked the engineer had left the filling loop turned on and over pressurised the boiler. Once I turned this off the noise stopped and the flow outside reduced dramatically before eventually stopping.
Does the relief valve now need replacing or will it re-set its self? The leak appears to be coming from the diverter valve assembly. I have asked that a Gas-Safe engineer comes to look at the boiler rather than just a plumber.
Only info I have about the boiler is it is a 'Kingfisher' brand.

 

[Dan Robinson]

A sorry tale... the Kingfisher brand spanned more than 30 years and went from faithful stalwart to a total piece of shlt.

If the former then it possibly shouldn't be on a sealed system. If the later, then depending on what the true problem is, it might just need a decent going over by an engineer that knows what he is doing and will be paid properly by a landlord who respects his tenants.

Have the the pump checked for operation and post back with SPECIFICS about the boiler. There were many many Kingfishers. Look for a data plate with Kw figures. it will have a model and GC number. this will give us the info to help you . Photos would be even better.

 

[conny]

Thanks Dan. Sorry for the delay in getting back to this, been very busy.
Daughter told me this evening that the landlord has contacted her to say a new boiler will be getting fitted early next week. After your comments about it being a stalwart seems a shame to get rid of it but then it may be one of the crappy later models.
Just for interests sake, I will try to get the size/model etc to see what you think. It does look fairly modern with a slim/half width door on the left hand side and then the full width casing underneath. If I remember correctly there were 3 control knobs vertically, a double row of lights, (5 or 6 per row), and to the left of these something that looked like a reset button. These were all behind the half door if that makes any sense.
Once again, thanks for your reply and apologies for the late response.

 

[Dan Robinson]

That ain't a Kingfisher dude... sounds more Like a Lynx electronic....

Get a piccy up...

 

[BARNY78BG]

make sure the new boiler is installed by a registered installer!!

 

[conny]

He called in today with the landlord to say he would be fitting it tomorrow. Daughter asked if he was 'Corgi' registered and he said no, not anymore. I'm Gas Safe registered nowadays and produced his card telling her to make a note of his name and number and if she had any concerns to contact the register people. He also said he wouldn't give her the number to call or anything to prove he hadn't got a mates number to confirm his registration. She is supposed to be going on the web tonight to enquire but he seems genuine. Landlord said the letting agency won#t allow him to use Non-Registered professionals for any major works such as gas, electrics or plumbing. Something to do with his insurance.