Home / Troubleshooting / 3iE Energy-Monitoring Thermostat

Thermostat Reads Error Message “ER2” on the Display?


3iE Energy-Monitoring Thermostat

The Thermostat Reads ER2

When the thermostat reads “ER2,” the floor sensor has a short circuit or has a loose connection. Your electrician must secure connections and test the probe using a multimeter set to the lowest possible ohms scale. The resistance reading should be between 7 and 17 ohms.  If a short is found and a backup sensor probe was not installed, you can bypass the error message by setting the thermostat to read the air temperature instead.

Menu > Settings > Set Heating Target > Target Air Temperature

ER2

Is your thermostat reading “ER1”? Read our Warmupedia post here.

ER1


 

Further Questions?