Boilermate 2000 + Potterton Suprima = No heating

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Boilermate 2000 + Potterton Suprima = No heating

Post  Speny on Mon Sep 26, 2011 2:54 pm

Boilermate 2000 + Potterton Suprima = No heating

Dear all,

I have a 2003 Boilermate 2000 Potterton Suprima 40. The PCB in the suprima was changed a couple of years ago along with the ACB in the boilermate.
The problem is that heating doesn't switch on when the thermostat is switched on. I can have heating but only on emergency so I'm sure the pump is ok.
Hot water is fine but a bit on the hot side. The boiler return seems to be running most of the time.
The heating worked just into spring but the boiler used to make a loud bang after a bit of use and stop. It doesn't do this anymore though.
When I test the temps I usually get the Er symbol for a few readings. others show at about 75deg. All the other lights light up as expected.
I have noticed that the digital timer appears to be fading slightly but if you shine a torch on it you can see everything ok.

I hope I've given plenty of info here so your help/suggestions would be greatly appreciated and my wife tells me October will be FREEZING!!!!!

There's a chap near me (Newmarket, Cambridgeshire) but his site is offline for personal reasons at the moment. He seemed the closest specialist.
You can't trust your average Joe with these systems!!!!

Kind regards and thanks in advance,

Spencer

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Re: Boilermate 2000 + Potterton Suprima = No heating

Post  Midland Boilercare on Mon Oct 03, 2011 6:00 am

Hi Spencer

The symptoms that you have described indicate a number of possible causes.

Firstly, the ER sensor readings indicate that you have failed sensors, however they don't usually prevent the heating from starting - just the hot water.
Secondly, the dim timer could indicate a fault with the timer.

It is essential that the boiler thermostat is turned up to maximum as the Boilermate 2000 won't let the central heating work unless it is hotter than 60deg C.
When you use the "switch - emergency" setting it overides part of the control system, and this is why you can get the heating to work.

Gary at MK Group Ltd covers the the Cambridgeshire area. Give him a call.
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