Where does the wires on a grundfos heating pump solonoid go?

I have a Grundfos pump in my heating system, in the top it has what can only be described as a solonoid with two wires coming from it, one was loose and I do not kwow where they both fit and what it ... more

Can I speed up my grundfos selectric 1550 pump?

Re the grundfos selectric 1550 pump, are you able to speed the pump up so that it pumps water round faster? or are they factory set? Many thanks

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Grundfos Selectric 15-50 - noisy when on, intermittent banging?

For the last few weeks our pump has been getting noisy, now we get loud vibration/banging noises that are sometimes short like a car turning over, sometimes as long as a minute. The water is still hea ... more

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ep 2000?

I had a grundfos pump ups 15-60 and changed to new 25-55 180 pump - basically an upgrade Did the wiring on the pump and short circuited with the fuse downstairs tripping out. EP 2000 potterton progra ... more

I have hot water overflowing into the loft expansion tank?

I had a new cylinder fitted in December 2009 and the plumber also upgraded the 3way valve to an electric one. A cyclinder thermostat was also added and a room thermostat installed in my dining room. W ... more

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Grundfos Selectric UPS 15-50 pump?

We have recently moved house and have inherited this pump. It never seems to stop running, day or night, even with the boiler off. Surely this can't be right?

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How can reduce the noise made by my Grundfos ups 15-50 pump?

My Grundfos UPS 15-50 pump has be come very noisy at times. Is there an easy way of stopping the extra vibration which is intermittent but increasingly lasting for longer periods of time?

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Grundfos Selectric UPS 15-50 pump?

The pump is constantly in the on position, even when the central heating and the water systems are off. Before, when both systems are off, the pump is off at the same time. Please help?

Grundfos Alpha+ 25-60 pump problem?

the Grundfos pump circulates water in my UF heating system however, I have noticed lately that although my living room feels at least aired, the kitchen area which is tiled, is still very cold - this ... more

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Programmer trips (mcb) fuse?

Glowworm balanced flue boiler - priority hot water with two-port valve, grundfos pump and manual clock type (British Gas EMD2) programmer. When slide on programmer switched to Hot Water the mcb tri ... more

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How canb I fixed my grundfos central heating pump ?

The pump will not work, but the hot water system is OK

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Constant running pump?

Please can somebody help? I have a Baxi Solo 3 Boiler, everything was running fine and one night a loud clunking noise was coming from the CH system (yes I agree air) after then I turned the pump spe ... more

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My Grundfos 15/50 rotates but?

...doesn't shift any water. The 3 position switch works and the rotor spins faster and slower as expected, but the boiler 'knocks' and overheats due to lack of water throughput. The pump is about 20 ... more

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which way do the valves go?

which way do the valves on top and bottom go? anti or clock wise on the grundfos 15-50 selectric? someone help please

How can I fix my boiler?

when i let the air out of my radiator it shut down and is now not turning on. the same problem happened to me the other day and after a day it was fixed autimatically. it's been two days since the rad ... more

Pump Fuse 3A Blowing?

Have an issue where the 3A fuse on the socket that feeds the pump and heating controller unit keeps blowing when the boiler kicks in. Pump replaced for brand new Grundfos 2 weeks ago - its the right ... more

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Central heating not working downstairs?

My central heating radiators are hot upstairs and cold downstairs, except the kitchen rad which is next to the boiler. I've bled all the air out of the radiators - there wasn't much - and checked that ... more

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Boiler and Hot water not working properly-easy fix?

Hi, My oil-filled heating system isn't working. I have an external Grant combi-boiler, and suddenly, 3 days before Christmas, the heating stops working. I still have hot water, but the temperature is ... more

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How do you fit an external switch to a Grundfos 15/50 pump?

How do you fit an external switch to control the variable speed on a Grundfos central heating pump fitted to a Worcester 15/50 central heating combi boiler? The higher speed is required when hot water ... more

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Problem with Potterton Suprima 80L?

Potterton suprima 80l, h/w is fine as is c/h as long as BOTH are on. Once h/w reaches temperature and clicks off c/h is OK for about another 15 minutes then boiler only fires and runs for approx 15 se ... more

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