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Guys. (long story)
I replaced a blower motor in an inflatable spa about 6 weeks ago. I couldn’t find the exact model as it’s a cheap chinese thing, but i did find a blower motor very similar. Incidentally its a 125mm vacuum cleaner motor.
Yesterday I’d had the top off the pump housing to resolve a small air leak on the blower, which was causing a whislte.
Every thing reassembled OK, and was put back in to service.A very short run on the blower to test functionality, with then only the water pump and heater running. About 2 hours later smoke started billowing out of the pump housing.
I’ve stripped it this morning to find the 2.0 uf starting capacitor burnt out. I initially wondered if i’d nicked something on reassembly causing a short, but cannot see anything.
I’m confused why the cap would burn out when the blower motor wasn’t even running, and why after a few hours post reassembly.
The blower starts and appears to run fine with the cap removed.
I’m considering not replacing the cap at this point.Any thoughts
Re: 2.0 uf starting Capacitor
Hi
I would check electrically fully before using it.If it passes then everything should be fine.
The blower motor failed on mine several years ago and I replaced the motor with a numatic one (£45) or £250 for original one guess which one i fitted.
It’s been running fine ever since and has lasted longer than the original one..If it’s working then let it run.Bryan
Re: 2.0 uf starting Capacitor
I may have found the reason the cap blew out.
I’ve just pulled the motor again and found that it has a small cap attached to it.
However, foolishly, I don’t remember if the failed blower had a cap. Considering there was one on the control pcb, i’d assume that the original motor didn’t have one.
Would having 2 caps cause one to blow ?
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