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Patricia BergAug 10, 2025
What to do if my ClimateMaster ATM11C11 shows 'E4'?
- JJonathan MartinezAug 10, 2025
If your ClimateMaster Thermostat displays 'E4', it indicates a memory failure. In this case, the thermostat needs to be replaced.
What to do if my ClimateMaster ATM11C11 shows 'E4'?
If your ClimateMaster Thermostat displays 'E4', it indicates a memory failure. In this case, the thermostat needs to be replaced.
Why does my ClimateMaster ATM11C11 Thermostat display '--'?
If the room temperature sensor fails on your ClimateMaster Thermostat, the temperature display will show '--'.
Power Source | 24VAC |
---|---|
Temperature Resolution | 1°F (0.5°C) |
Backup Heat Control | Yes |
Display | LCD |
Programmable | Yes |
Fan Control | Yes |
System Mode | Heat, Cool, Off, Auto |