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compressor motor overload, any electricians in the house for a quick answer??
NS Dev - 16/1/10 at 03:33 PM

Arggghhh mid very expensive paint job and the compressor has packed in.

Its tripping the single phase motor overload and the motor won't start properly.

The unloader switch is working properly,question really is, if the start capacitor is shot will that cause high run current and difficult starting?

I guess it will but want confirmation before I buy a capacitor!

cheers

Nat

philw - 16/1/10 at 03:35 PM

Thats what happend to mine, new capacitor fixed it. hth

Stuart_B - 16/1/10 at 03:39 PM

yes it will as the capitor is there to corect power factor, to near as unity as possible, and with out the capictor the current will lag the voltage by more than it should.

hth

stuart

jacko - 16/1/10 at 03:41 PM

And mine looking for a cheep capacitor at the mo

Nat will it start when the tank is empty ?
can it be the stop / start pressure switch?
Jacko

philw - 16/1/10 at 03:54 PM

quote:
Originally posted by jacko
And mine looking for a cheep capacitor at the mo


Jacko


I got my capacitor from a local electrical motor re-winders, about £15 iirc

MkIndy7 - 16/1/10 at 05:00 PM

Maplins do a range of motor start capacitors if your needing it today.

http://www.maplin.co.uk/Module.aspx?ModuleNo=30309

iank - 16/1/10 at 05:18 PM

quote:
Originally posted by MkIndy7
Maplins do a range of motor start capacitors if your needing it today.

http://www.maplin.co.uk/Module.aspx?ModuleNo=30309


Phone the store before setting out, I've found their stock levels for components to be pretty poor over the last few years.

scotlad - 16/1/10 at 05:28 PM

The capacitor is there to cause a phase shift inducing the rotor to turn. Without this phase shift there is no rotating magnetic field therefore the motor stalls.Capacitor very likely popped as said

[Edited on 16/1/10 by scotlad]