Coleman MACH Blew the Blower Wheel!

[armullis59]

I don’t remember who posted about this weeks ago. But, I remembered it when this morning I heard this God Awful noise coming from the rear of our coach, roof area. I immediately suspected AC and shut it down. I was thinking “Blower Wheel?”

Got up on the roof and removed the outer cover and the cover over the blower wheel and here it is! Photos attached..

Fortunately, I had saved the Amazon page for the replacement part in my Amazon Lists and here it is…


https://www.amazon.com/Coleman-1472A...d_gw_ci_mcx_mi

So, as soon as I get the replacement in, I will follow up with pictures of the replacement process.

[creativepart]

This issue was an appropriately 2-year issue with these Coleman-Mach A/C units. They seem to have this corrected now. I checked both of my A/Cs about 15-months ago and both had updated fans already in place from the factory. My RV is one year newer than yours.

Make sure to check the fan on your other A/C unit because if it’s one of those bad ones it will probably be next.

[Americanrascal]

A couple of years ago I started hauling a spare blower wheel/ squirrel cage a few years back. I was fortunate (or maybe unfortunate?) enough to salvage a wheel and a bunch of other parts from a Coleman heat pump that failed on the rig requiring a total replacement. Gives me some comfort knowing I can have one to quickly change out if I'm on the road in warm summer months if the infamous grinder sound starts up in one of the roof top units.

[armullis59]

Joe, you are right….Be Prepared! I just wish I had a spare right now. But, these things are hard to predict.

[armullis59]

I replaced the Blower Wheel today. A TORX T-25 was required to get the screw off that secured the wheel to the motor shaft. After getting it back together, before replacing the covers, I had the wife cycle the rear AC on, and everything worked. So, now I am going to order another Blower Wheel part from Amazon and do the front AC soon. It will probably go bad too.