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I wondered if anyone could help please. A friends water pump keeps running forever.
I don't have every detail about his setup, but know the following:
Its not a combi boiler, but an older-style hot water tank.
His wiring centre is branded Danfoss, as are the two motorised valve heads (one for heating one for hot water).
I believe the programmer's a Danfoss FP715SI, but arent 100% certain of the model.
Both the heating and hot water do get hot.
If the mains supply to all of it's turned off/on, the pump behaves normally as the central heatings turned on/off, but once the hot water's turned on the pump starts and never stops.
The boiler stops when the water's hot, it doesnt keep running forever.
I'm not sure if its useful without a lot of labelling, but his wiring centre looks like:
He thinks the problem started after his boiler was moved ages ago, but isn't 100% certain.
The water tank thermostat's been swapped and made no difference.
Neither of us are plumbers or sparkies, but we're both pretty practical. Just not familiar with central heating systems. We've got basic tools inc a multimeter.
Hows it best to approach it to figure out the cause?
Huge thanks in advance.
I don't have every detail about his setup, but know the following:
Its not a combi boiler, but an older-style hot water tank.
His wiring centre is branded Danfoss, as are the two motorised valve heads (one for heating one for hot water).
I believe the programmer's a Danfoss FP715SI, but arent 100% certain of the model.
Both the heating and hot water do get hot.
If the mains supply to all of it's turned off/on, the pump behaves normally as the central heatings turned on/off, but once the hot water's turned on the pump starts and never stops.
The boiler stops when the water's hot, it doesnt keep running forever.
I'm not sure if its useful without a lot of labelling, but his wiring centre looks like:
He thinks the problem started after his boiler was moved ages ago, but isn't 100% certain.
The water tank thermostat's been swapped and made no difference.
Neither of us are plumbers or sparkies, but we're both pretty practical. Just not familiar with central heating systems. We've got basic tools inc a multimeter.
Hows it best to approach it to figure out the cause?
Huge thanks in advance.