Question about Minolta EP4000/5000 CS/PRO Copier

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Error code C004A M5 fan does not turn

Removed M5 fan and had it tested on a bench. Worked great with 24volts applied to red and black wires. Pages T-63 and T-64 from repair and troubleshooting manual seem to say to reset some dip swithes on PWB A. Not sure if I understand that properly.

If needed where might I obtain a repacement PWB-A? Is there a wrecking yard for old copiers? I worked for Xerox 22 years ago so I'm not completely in the dark of the magic in the box. This machine is used and needed badly by a non-profit organization that helps a lot of very sick people of which I am one of the healthyier. Any help most appreciated. Thanx, Jim

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This motor runs at a reduced speed for part of the copy cycle - just because it bench tests okay does not mean that it is good. The bushings sometimes get clogged with dust, etc. A drop of light lubricating oil on the shafts may do the trick. The fan should spin freely.

The troubleshooting manual is simply telling you how to use the I/O Check feature of the copier to live-test the motor and determine if the problem is with the motor or PWB-A. This is done from the control panel in the service mode. See the "Switches on PWB's" section of the manual.

The problem is likely with the fan rather than PWB-A.

Posted on Nov 14, 2008

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