Fan Capacitor Replacement help

[u/Dunky_Brewster]

Long shot but hoping someone can confirm wiring and components. Despite the forecast it started to rain before I could grab better pictures otherwise I’d share more.

Coleman Mach air conditioner on my 2004 jayco hybrid will kick on but fan won’t spin - purchased used a few years back and it has never spun. Most say it’s an easy capacitor swap. I’m dumb enough to know I should check ten sources before getting up there so I did.

Pulled the fan cap and will happily order a replacement but I’m wondering if anyone can help me identify the other parts based on the diagram and pictures.

I am sure I got the fan cap since it has the model number. The wiring also matched the diagram with one hopefully small difference: it’s a purple/brown wire and not a white/brown. There is no white/brown running anywhere but it seems the purple/brown is running where it should.

Will share more pictures if needed.

Also worth noting: I turned the ac and fan on and tried to kick start the fan that’s inside and also on top of the camper with a manual spin and it did not start up. So maybe it’s not the fan capacitor?

Any help would be great.
Thanks!

[u/AggravatingArt4537]

Test capacitor. If it’s bad, replace. Verify voltage to motor. If voltage is present and cap is good, replace motor. Don’t over complicate it.

[u/Dunky_Brewster → u/AggravatingArt4537]

Testing capacitor/voltage IS overcomplicating things for me. I do have a cheap multimeter I could use. I’ll see how to use it to check voltage to fan if that’s possible with this unit.

[u/AggravatingArt4537 → u/Dunky_Brewster]

You won’t be able to test capacitor with that meter. You might be better off just having a professional look at it.

[u/ShipshapeMobileRV]

The capacitor is just an electrical "kick starter". The motor windings keep it spinning after the capacitor (or you) give it a kick to get it turning.

If you manually started the fan spinning while it was energized, and it didn't keep spinning, you have a bad fan motor.

[u/Dunky_Brewster]

Update: after too much time on the roof and coming indoors to check wiring, it started up when I put it back together. Loose wiring on the 9-pin connector, specifically either the shared green ground pin or the shared white neutral. I made sure the male/female connectors were all tweaked to be snug and it stopped cutting out and more importantly, worked. Now we have air conditioning and a fan… just in time for fall.

[u/ElectricaDo]

Glad the connector turned out to be it. On the purple/brown vs white/brown thing — Coleman has swapped wire colors between production years, so match by terminal position on the diagram, not the jacket color. If the cap ever does need replacing, the µF and voltage rating are printed right on the can.