9330C755 Control Box Assembly Heat Ready AC Cool Control Replacement Parts Kit Fit for Coleman Mach 15 RV A/C Heat-Ready Assemblies Controller, for Air Conditioner Units with an Add-n Heat Strip

We replaced our front 13,500 btu AC with a 15,000 btu AC and this part number control box is what was showing as being required. When I wired up the box, it wouldn’t work. I had 12v coming into the box as well as 120v, but no 120v leaving the box going to the AC compressor from the relay. Ordered a new box, same issue. I am intimately familiar with the wiring on the AC and in the box and I had it wired correctly. After some research I learned the box from the old AC would actually work so I wired it up and the AC worked like a champ. Moral of the story is don’t buy this box. I got two that had the same issue, still not exactly sure what that issue was but it was internal in the wiring or the relay. I’d find another box.

Exactly what I needed

Swapped the part out and it didn't work. The fan ran but the compressor wouldn't kick in. Took to a dealer and they said the part was bad and ended up replacing. Unfortunately it was past the 30 day window to return. Do yourself a favor and find a different one.

Exact match up and is working great.

Received the board in new condition. But after installing the compressor would not run. Using a meter I found no power at the compressor. Checking voltage at the relay and saw voltage supplied but saw no through put. Moved the compressor wires to the heat relay and then sent the A/C signal to the heat signal.See image for how I did this. I don't have a heater attached to the A/C control board so I was able to get it to work.Should have returned it but it is too hot to wait another few days.

I had no fan ,i can fix it ---but it cost me a hole day to find out what the problem was. one of the wires that went to the plug on the inside of the box,,,(white) was crimped on the wire casing not making contact with the wire. am calling this one junk maybe i got a bad one, but you think someone would have tested it

“Y” for compressor relay only engaged when pressure put on connector. Further investigation showed broken solder on relay for compressor. On 2 units in a row. Garbage

works perfectly great price and come on time.