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Thanks for your comments. The header tank does indeed get quite warm; I guess that is to be expected as the much larger tank underneath gets very hot. I will not add any more leak sealer. I have just added my own lid to the header tank, an inverted plastic cereal bowel. Any condensate...

Recently inherited this system of a BoilerMate 2 and a Potterton Suprima 80 boiler, both about 12 years old. Header tank has both ball valve and an isolation valve. Water level in tank is about right; it is on the crease mark when cold. It does rise up, as expected when hot, but still below...

I called it "high boiler modulation". Not 100% sure if that is the correct description. Basically for the week or so that the boiler’s pump was running continuously the boiler itself would go thro the procedure of starting up, burning for just one minute or so, and then shut down. This...

The boiler turned out to be an 80. To all those who contributed. I had a successful result. A new delay timer PCB fixed the problem of boiler pump running continuously and a high boiler modulation. thanks, overthetop

To all those who contributed. I had a successful result. A new delay timer PCB fixed the problem of boiler pump running continuously and a high boiler modulation. thanks, overthetop :P

At my last visit I was distracted by what I thought were Boilermate 2 problems. However, I did take some photos of the boiler's front panel. Just had a look at them and its looks like the boiler has been fitted with the later PCB because the front panel picture matches that for the 5111603...

Looking ahead but hope my problem doesn't lay there. 1999 Potterton Suprima System Boiler Identification and its controls. How to correctly identify the boiler? I notice that it comes in different outputs - ie 30 - 100, etc. Records left with the householder indicate it was fitted with...

I re-read the last post. Reference was made to a PCB. I now realise the post was referring to the boiler's PCB. My post was refferring to one of the two Boilermate 2 PCBs. Anyway, as far as I know the boiler pump is wired to the Boilermate. The Boilermate controls everything. At least...

The boiler / pump wiring is, as far as I know, as the standard wiring diagram in the Boilermate 2 installation manual. The new Boilermate 2 PCB hasn’t got any fault code outputs. I have not yet seen the original PCB for comparison. I am not planning to make any changes to the existing...

thanks for your comments. I am not planning to go into the Potterton Suprima boiler. I do know it had a new heat exchanger and PCB fitted 2years ago. The system had a new ball valve to exp/makeup header tank on the Boilermate and a new mixer valve to its plumbing fitted at the same time...

The Potterton Suprima boiler pump runs on for hours; I hope a new Boilermate 2 Delay Timer PCB next week will sort that out. It has been suggested might also/have a faulty Boilermate thermostat - does anyone know if it is of a capillary or rod type? Also noted at last visit, the boiler...

Thanks for your comments. The boiler thermostat is set to maximum as recommended by the Boilermate 2 user instructions. For a short period of time I did try a lower setting as central heating is not required at present but it made no improvement. The Boilermate 2 does achieve the set...

One of the features of the Gledhill Boilermate 2 system is that it do not use motorised valves. It uses 2 pumps - one for boiler to tank, the other for tank to radaitors. The storage tank and its two heating coils are arranged in reverse of the more conventional HW/CH systems. Not...

The pump between the boiler and storage tank runs continuously. The boiler, a Potterton Suprima system boiler, was fitted with a new heat exchanger and a PCB in 2011. At the same time a new ball valve and anti-corrosion fluid was fitted to the expansion/makeup tank on top of the storage tank...