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Nuovo Simonelli Mac 2000 switch problem?

Postby cal on Wed Oct 19, 2011 6:03 pm

Hi All,
Just rebuilt a Nuovo Simonelli Mac 2000 2 group and it's up and "running". Interestingly, from an ice cold start, the machine doesn't always start up. I may have to turn the switch on and off several times before I hear it start to creak and groan. But once the machine is heated up, it virtually always restarts when you flip the switch. Does this sound like a switch problem or maybe a power supply, or something else??
TIA.

Cal Peters
Grand Rapids, MI
cal
 
Posts: 6
Joined: Jun 25, 2008
Location: Grand Rapids, MI
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Postby duke-one on Wed Oct 19, 2011 6:52 pm

If you know how to safely do it: remove the switch and hook it up to a ohm meter. You should have very little resistance between the contacts when they are closed. Even 1 ohm is more than you want to see. Flip it on and off a bunch of times and the meter should tell the story. If it is an illuminated switch make sure you are reading the contacts not the lamp.
KDM
duke-one
 
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Joined: Apr 13, 2007
Location: Berkeley California USA
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Postby cal on Wed Oct 19, 2011 7:09 pm

good idea. If it continues to act up, I'll give that a shot. Thanks!!
cal
 
Posts: 6
Joined: Jun 25, 2008
Location: Grand Rapids, MI
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