What does flashing "Diff" on the thermostat display mean?
Coleman Mach 6536A3351 True Air Digital 2-Stage Heat Pump/Gas Furnace RV Wall Thermostat - Black
Question ID: 2354810 Status:
Open Oct 09, 2017 - 03:28 PM
Appliances > Air Conditioners
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Oct 10, 2017 - 04:07 AM
Unfortunately we do not know exactly what it means, but many customers have said they fixed it by removing the front cover, taking out the fuse and putting it back. If not let me know and we can work with the manufacturer to get you a solution.
Dec 18, 2017 - 05:47 AM
If it did not work, I would contact the manufacturer at (316) 832-4357 and one of their techs can help with troubleshooting. Hope this helps.
Jan 10, 2021 - 11:32 AM
To simplify; the two stage heat pump cannot satisfy the thermostat. Which means it's too cold outside for the system. That is my understanding of "room diff".
Nov 02, 2022 - 12:03 PM
The tstat when calling for heat is set too high. You can only set it 4 degrees above room temperature. Diff means that tstats in a 2 hours lock out. ( Per COLEMAN AC ) If it did not work, I would contact the manufacturer at (316) 832-4357 and one of their techs can help with troubleshooting. Hope this helps.
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