Troubleshooting
Showing help for
3iE Energy-Monitoring Thermostat
“ER1 Out” Thermostat Reading on the Display
It indicates that the thermostat is not set up correctly. Click "Read More" for details.
Ground Fault Error: What does this Mean if my Thermostat has “Ground Fault Error” on the Display?
This message will occur if a ground fault is detected. Click "Read More" for details.
Heater Error: What Does it Mean if my Thermostat Reads “Heater Error” on the Display?
Heater error will occur if the heating system is not properly wired to the thermostat. Please...
Is it normal if I hear a clicking noise from my thermostat?
The clicking noises are the relay opening and closing to let the power through to the...
Output Fault Detected on the Display
It is likely to be a wiring or installation issue. Please consult our installation manual for...
Thermostat Reads Error Message “ER2” on the Display?
The ER2 message will occur if the floor sensor has a short circuit or has a...
Un-Mounting Your Thermostat
Please click "Read More" for instructions on how to un-mount your thermostat
What does “ER1” on the thermostat display mean?
The ER1 message will also occur if no floor sensor is connected to the thermostat. Have...
What if my thermostat screen is black and won’t turn on?
If your thermostat has no display and will not turn on when power button is pushed,...
Why is my floor heat not working even though there are no error messages on my thermostat?
Discover why your floor heat is not working despite there being no error messages showing on...
Why is my floor temperature reading incorrect?
If your floor temperature reading varies significantly from the actual temperature of the floor, it could...
Why is my Floor Temperature Reading Incorrect?
If your floor temperature reading significantly varies from the actual temperature of the floor, the sensor...
Why is my thermostat flashing?
Is your thermostat display flashing? We'll be happy to help get you on the right track...
How do I perform a GFCI Test on my thermostat?
Do you need to test the GFCI on your Warmup thermostat? This post will provide the...
Why does my thermostat say test monthly?
Are you wondering why your thermostat says test monthly? Wondering what you should do? Learn all...
What can I do if my old thermostat has stopped working?
Does it appear that your old thermostat has stopped working? Learn more here about what you...
Why is my thermostat stuck on the Warmup screen?
Is your thermostat stuck on the Warmup screen? To advance you'll want to confirm a few...
ER1 on the Thermostat Meaning
The ER1 message will also occur if no floor sensor is connected to the thermostat. Have...
What Does the Control Fault Error Message Mean?
The Control Fault message might occur for several reasons. Please contact your electrician to have them...
What is causing my thermostat to keep tripping requiring that I press the reset button?
One reason why your thermostat keeps tripping could be that you have GFI on the thermostat...
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