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Coleman-Mach Mach 3 Plus air conditioner Question

Racorman
Explorer
Explorer
I have a Coleman-Mach Mach 3 Plus air conditioner and I pulled off the interior ceiling cover to vacuum out the dust covered A/C fins. While doing it, I must have disconnected one of the wires labeled "FREEZE" as shown in the photos. Problem is I don't know where it is plugged into, or if I even need it to be plugged in. The A/C still works with this wire unplugged.

Does anyone have information or knowledge what this wire does or where it needs to be plugged into?

Thanks





AKA..... 56Nomad
2012 Itasca 30' Class A
2013 Jeep 2dr Wrangler
8 REPLIES 8

wa8yxm
Explorer III
Explorer III
ksg5000 wrote:
That appears to be a freeze sensor - believe it's suppose to be inserted into the center of evaporator coil between 2nd and 3rd line from bottom. Google should have online PDF for exact sensor position.


No photos here since you use Photo dump..er. bucket and I don't

But the freeze sensor just plugs in to the evaporator coils near the bottom.. Precise positioning is not really all that important.
Home was where I park it. but alas the.
2005 Damon Intruder 377 Alas declared a total loss
after a semi "nicked" it. Still have the radios
Kenwood TS-2000, ICOM ID-5100, ID-51A+2, ID-880 REF030C most times

Racorman
Explorer
Explorer
Thanks guys for the information. I tackled the problem from the roof and removed the cowl and sheet metal to access the fins where the temp sensor resided. Beside easy access I was able to vacuum all the debris from the fins which increased the efficiency of the A/C :C



AKA..... 56Nomad
2012 Itasca 30' Class A
2013 Jeep 2dr Wrangler

Racorman
Explorer
Explorer
I think I found it at 4:17 in this video.....

https://youtu.be/E9H4CufT7oU
AKA..... 56Nomad
2012 Itasca 30' Class A
2013 Jeep 2dr Wrangler

azrving
Explorer
Explorer
Racorman wrote:
rjxj wrote:
Sensor, leave it where it was. Use the RV.net picture link


Problem is, I don't know where it was :h


OH ok, Sorry, I thought your first pic showed it taped up. It goes at the edge of the coil to sense ice build up. Usually there will be a small area in the fins where they originally placed it. Look along the lower edge and there may be a gap in the fins. Be careful because the coil tubes are in there and carry the refrigerant.

Racorman
Explorer
Explorer
rjxj wrote:
Sensor, leave it where it was. Use the RV.net picture link


Problem is, I don't know where it was :h
AKA..... 56Nomad
2012 Itasca 30' Class A
2013 Jeep 2dr Wrangler

Racorman
Explorer
Explorer
ksg5000 wrote:
That appears to be a freeze sensor - believe it's suppose to be inserted into the center of evaporator coil between 2nd and 3rd line from bottom. Google should have online PDF for exact sensor position.


Thanks Kevin.... any chance you could locate that link?
AKA..... 56Nomad
2012 Itasca 30' Class A
2013 Jeep 2dr Wrangler

ksg5000
Explorer
Explorer
That appears to be a freeze sensor - believe it's suppose to be inserted into the center of evaporator coil between 2nd and 3rd line from bottom. Google should have online PDF for exact sensor position.
Kevin

azrving
Explorer
Explorer
Sensor, leave it where it was. Use the RV.net picture link