Answer Question
coleman mach thermostat
My 2026 Airsteam Globetrotter with two AC/Heating units has the Coleman Mach thermostat. It has multiple numbers inside on the back:
1. 999320410 printed on the circuit board
2. on one sticker, 999390400 and 9420A330
3. on another sticker, 999380400
I'm not sure which of these numbers are the model number and I don't know which MicroAir thermostat will be a plug and play replacement.
Thank you for your help!
Jim Welsch
Templeton, CA
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