Boilermate 2 - lack of hot water

Looking for some help as I cant seem to get any simple advice! i have a boilermate 2 which provides high pressure to taps with hot water however there is not enough hot water to fill a bath / have a long shower. It gets cold - if you leave it for a minute or so it warms up before again running out again. Running the tap at low pressure makes the water hotter. I had an engineer from domestic and general out who told me there had been ingress within the coil (?) and the system needed replacing. He ran the taps until the water had gone and there was black bits (looking metalic) coming out. Domestic and general and refusing to repair as apparently my cover doesnt include unvented cylinders - still arguing this - but are quoting a gledhill engineer repair of around £300 is required.

What do I need to do? Hate getting ripped off!

Jon

Hi Jon

The symptoms you have described suggest that there is not enough water within the unit to allow energy transfer at the correct rate.
1] Check that you have adequate water in the top tank (it should be about half full).
2] If you have adequate water, either your open vent or cold feed into the unit could be blocked preventing the water entering the unit.

The unit IS NOT AN UNVENTED CYLINDER, it is an open vented thermal store. I have had many customers that have been told by D&G engineers that they have an unvented cylinder. As far as I am aware, their terms and conditions do not specify that they don't cover thermal stores.

I would suggest youu check the engineers link on this forum (https://gledhill-repairs.forumotion.net/f20-gledhill-repair-specialists-advertise-your-service-here) tolocate your nearest independant Gledhill Specialist who should be able to help you. Who knows, you may even be able to recoupe the cost from D&G

Regrads
Dave Hickey

Dave,

Thanks for this, really appreciated - especially the advice around the unvented cylinder. Could a boilermate 2 be described as an energy management system? I wont ever be taking a policy from D&G again - been completely miss sold the cover I thought I was getting.

I checked the top tank and it was half full - it was quite warm too - should this be the case? I do remember when I had the bathroom done I was told there was some sludge in the tank. Could this be a cause? Does it need a powerflush? I have never put anything into the system.

Jon