Air Cond coolingThermostat (line voltage)

TomG2 wrote:
There is a company called Airswitch that does exactly what you want.

http://airswitchrv.com/products.html

That is it.. Perfect.. Thanks for your help Much appreciated

There is a company called Airswitch that does exactly what you want.

http://airswitchrv.com/products.html

My Lance trailer has a Coleman Mach roof air direct blow unit. Has a wall thermostat Coleman Mach unit. On the front it says Coleman Mach RV Comfort.HC. Has a fan switch that has---Fan-High,Low, Auto position. In auto position fan shuts off with compressor.

it has been done in a few different ways there has been instructions in this forum before here are some videos Installing thermostat for a Coleman Mach AC

JCR-1 wrote:
Unfortunately there is no "auto" setting on this Mach Air Cond.

That's because you didn't make it clear in your original post that what you have is a direct blow system with the thermostat controls mounted on the unit's ADB instead of a ducted system with wall mount thermostat that would have an AUTO mode. If this is important enough talk to a dealer about replacing that ADB with a ducted grill and wall mount thermostat.

Unfortunately there is no "auto" setting on this Mach Air Cond.When you set the thermostat (rotational dial goes blue to red) and you reach the temp you want the compressor kicks out , but the fan continues to run. I want to install a thermostat on the incoming 120 v line to control both fan and compressor to turn on and off together.
The switch has off, low fan , high fan, low cool , high cool.Thats it no AUTO .

I do not think there is anything close to a plug and play thermostat that will replace the controls up on the ceiling unit.

Fan setting should be in AUTO........in auto it starts/stops with compressor

In High or Low speed settings it runs....can also run when using t-stat for HEAT


Now IF t-stat is broken (in auto and still runs) then either a new OEM t-stat or a Honeywell/Hunter digital can be used as replacement


Post YEAR, Brand/Model of that Colemen-Mach for suggestion on t-stat swap

Or ....place Fan in AUTO


HERE is info on Honeywell Digital T-stat Swap