Re: OT Coleman PowerMate PROBLEM FOUND

"amdx" <amdx@xxxxxxxxxxx> wrote in
news:b557a$484fc081$18d6b40c$27712@xxxxxxxxxxx:

>Coleman powermate generator quit working 1 hr 15 min after
>>working
properly. (Pro-Gen 5000)

A few minutes ago I pulled the cover and found a 19 turn coil in the
stator burned (overheated, no insulation left on copper). The unit
has a pcb with 8 diodes and a capacitor, a foil on the pcb has
overheated and opened. The foil goes to a 470uf 200v capacitor. The
only connection to that part of the open foil is the capacitor.
Leading me to think the cap is shorted, but at this time and
temperature, the cap shows very high resistance (over 2 meg) and
deflects the meter both ways if I charge the cap and reverse the
leads. ( deflects? I'm using a digital meter, but you know what I
mean). The diodes all check good.
I don't know if I'll attempt repair at this point. It looks like the
19
turn coil could be replaced fairly easy, it's pretty loose in the
slot. The motor was not dipped in varnish.
Later, Mike




GREAT!
I'd use my ESR meter on the cap to check it.

Can you -rewind- that 19T coil with new wire?

--
Jim Yanik
jyanik
at
kua.net
.

Relevant Pages

  • Re: OT Coleman PowerMate PROBLEM FOUND
    ... A few minutes ago I pulled the cover and found a 19 turn coil in the stator ... diodes and a capacitor, a foil on the pcb has overheated and opened. ... Leading me to think the cap is shorted, ...
    (sci.electronics.design)
  • Re: OT Coleman PowerMate PROBLEM FOUND
    ... A few minutes ago I pulled the cover and found a 19 turn coil in the ... The foil goes to a 470uf 200v capacitor. ... Leading me to think the cap is shorted, ... I'm using a digital meter, ...
    (sci.electronics.design)
  • Re: OT Coleman PowerMate PROBLEM FOUND
    ... A few minutes ago I pulled the cover and found a 19 turn coil in the ... The foil goes to a 470uf 200v capacitor. ... Leading me to think the cap is shorted, ... I'm using a digital meter, ...
    (sci.electronics.design)
  • Re: OT Coleman PowerMate PROBLEM FOUND
    ... A few minutes ago I pulled the cover and found a 19 turn coil in the ... The foil goes to a 470uf 200v capacitor. ... Leading me to think the cap is shorted, ...
    (sci.electronics.design)
  • Re: OT Coleman PowerMate PROBLEM FOUND
    ... The foil goes to a 470uf 200v capacitor. ... Leading me to think the cap ... turn coil could be replaced fairly easy, it's pretty loose in the slot. ...
    (sci.electronics.design)
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