A direct-fit digital thermostat for Coleman Mach rooftop air conditioners. The 9430A3402 delivers straightforward single-stage cooling control with a clear LCD readout -- no guesswork, no analog dial drift, and no rewiring headaches when replacing an original Coleman Mach wall control.
The Coleman Mach 9430A3402 is a cool-only digital wall thermostat designed specifically for Coleman Mach RV rooftop air conditioning units. It replaces aging analog or earlier digital thermostats in the same footprint, using the same low-voltage 12V DC wiring already present in your RV's wall.
Unlike a generic home thermostat, this unit is engineered for the single-stage cooling circuits found in Coleman Mach rooftop ACs. The digital LCD reads current temperature precisely, so you can set a target and know the system will cycle accurately -- useful when you're managing comfort in a small interior space that heats and cools quickly.
Clear numeric readout of current and set temperature, eliminating the ambiguity of analog dial markings.
Controls the compressor and fan for cooling operation. No heat strip or heat pump wiring -- purpose-built for cooling-only setups.
Runs on standard 12V DC RV house power through the low-voltage thermostat wire already run in most Coleman Mach installations.
Designed to work with the wiring harness and control circuit of Coleman Mach rooftop AC units -- no aftermarket adapters required in most installs.