Hi, I have an old boiler (not the one I'm married to). It is a Glow-worm Hideaway 50 and the pump has stopped working regardless of what setting it is on (1,2 or 3). The pipes are red hot up to the pump and we still get hot water but the water is not pumping to the radiators which are stone cold!. Does anyone know a way to fix this or do I need a new pump? If I do need a new pump does anyone know what type I need to buy/order as I don't have a clue and it has no markings/make etc opn it. Thanks in advance for any advice given.
Central Heating Pump Problem ?
- Thread starter stokieah
- Start date
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Check for mains voltage on the pump wires, as long as you're safe to do that.
Most pumps are 130mm between the flanges. Can be an easy job but never a good bet.
Old pump isolating valves probably wont work so the system would have to be drained, valves probably replaced, which may be a different length so the pipes change. Sometimes the nuts won't undo even when a weight lifter pulls on a pair of 2ft spanners. Which you usually can't get on the nuts in the first place.
Most pumps are 130mm between the flanges. Can be an easy job but never a good bet.
Old pump isolating valves probably wont work so the system would have to be drained, valves probably replaced, which may be a different length so the pipes change. Sometimes the nuts won't undo even when a weight lifter pulls on a pair of 2ft spanners. Which you usually can't get on the nuts in the first place.
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the pump impeller may be jammed. There should be a big screw on the end of the casing which you can undo to bleed the pump. If you remove that screw you will get a bit of leakage, but you should be able to put a big flat ended screw driver into a slot on the end of the shaft and see if the pump impleller rotates freely. If it does or doesn't come free very easily you need a new pump. If it initally feels sticky and then comes free or you feel it unjam, put the screw back in and try the heating again.
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