aqueous parts washer - electric problem

[Fred Munro]

Tom;

My guess is that since the pump has been hanging from the power cord the
wires have broken inside the cord and you have an intermittent open/short.
You may have to take it apart and shorten or replace the cord. You should be
able to verify with a multimeter. Good luck!

HTH

Fred Munro
'97 S6

-----Original Message-----
From: quattro-bounces at audifans.com [mailto:quattro-bounces at audifans.com] On
Behalf Of TWFAUST at aol.com
Sent: November 10, 2010 4:40 PM
To: quattro at audifans.com
Subject: aqueous parts washer - electric problem 

 

Audi content - trying to clean parts for '82 Coupe
 
I am having parts washer pump problems and have minimal electrical  
knowledge.
 
It started with the pump failing to run for long periods. I thought this  
might have to do with the temperature of the cleaning fluid (undiluted
Purple 
 Power). The pump would shut off after the fluid got hot. It then seemed to 
run  after the fluid cooled down. 
 
There is a breaker built into the power cord (110v), and this would open. 
 
Here we are several days later, and the pump seems to not run at all. I  
have lifted out the pump and heater assembly. Then I opened up the  pump  
inlet to check for an obstruction. There does not appear to be any and the
(very 
 small) impeller spins freely. With the impeller exposed, I plugged it in 
to see  if it spun. Initially it did not. When I tried resetting the breaker

it would  run for a second until the breaker clicked off.
 
My limited knowledge suggests a short, a difficult problem because the  
motor is normally submerged and is entirely sealed. I have noticed one
thing.  
The pump hangs from a tube which encloses the power cord. The nut 
arrangement at  the top of the tube has unscrewed and the tube is no longer
held. It 
appears  that the pump hangs by the power cord, this will take considerable 
disassembly  to fix.
 
Any thoughts, anything I should check? Since the motor is sealed, it seems  
unlikely that undiluted Purple Power was too much solvent.
 
Tom Faust
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