Ferroli 901 short cycle

[ShaunCorbs]

Yes if empty / drained Waco with a hammer

 

[NEILC25]

It could be a weak capacitor, alternatively the whole pump could do with replacing.

it turns freely with a screwdriver, however when I make a mark on the spindle and turn it on to the point where it shuts down again and remove the metal disk I can see that it hasn't moved.

It could be a weak capacitor, alternatively the whole pump could do with replacing.

 

[NEILC25]

I've bought a new pump for £50 which seems OK, I'll give this one a gentle whack with a hammer and see how it goes, thanks.

 

[NEILC25]

afternoon, I've got a further query, I managed to get the original pump off, it was rusty and the plastic parts looked like rusted metal there's what appears to be a ceramic collar in there which had bits chipped off, I've cleaned it all up, bearings have gone I think, however it still spins, I've put it back in until new one arrives and no more short cycling, however, ( sigh) the heating comes on and the water is now at a constant heat but it is a lot lower that before. I imagine that the current pump isn't woring to full capacity, could that be responsible for this, I haven't replaced aw nything else. I'm hoping that the new pump will spin more freely and solve this, although I thought the pump had little to do with water temp, any advice would be appreciated. Thanks

 

[NEILC25]

Ok. I've got a problem, I'm hoping it's just a faulty part, my new pump came today, I installed it ( I've done a few before with no issues) it ran for about 5 minutes and then started smoking, ( literally) and then blew the fuse I took it out again and it's literally melted. The inside of it has burnt out, any idea why this would have happened?, even the previous one I took out didn't melt? I am hoping it's faulty, I can't see how I can be at fault with this?

Thanks in advance

 

[SJB060685]

Loose wires could cause this. What make of pump is it? They should replace under warranty.

 

[NEILC25]

It's a grundfos, the same as the original one

 

[SJB060685]

It's a grundfos, the same as the original one

If you’re confident you wired it up correctly and with no loose connections then they will replace under warranty

 

[Chuck]

It's a grundfos, the same as the original one

Was it the correct voltage rating? (A 120V motor on a 240V supply behaves rather like you described...)

 

[SJB060685]

Was it the correct voltage rating? (A 120V motor on a 240V supply behaves rather like you described...)

I’d imagine the OP would be aware of that. I could be wrong though