Troubleshooting
Showing help for
4iE Smart WiFi Thermostat
Connected to the internet and getting the “!” message on 4iE Thermostat?
Ensure you have created your account and registered the thermostat using the Device Number. Click "Read...
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.
If I’ve Registered an Account, Why Does my 4iE Still Have an ‘!’ on the Screen?
It could also mean that your thermostat is connected to the internet but you have not...
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...
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 does it mean if my thermostat reads “overload” on this display?
The overload message will occur if more than 15 AMPS has been connected to the thermostat....
What does the ‘!’ mean on my 4iE Screen?
This may also mean that you have not yet registered the actual thermostat under your location...
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 thermostat flashing?
Is your thermostat display flashing? We'll be happy to help get you on the right track...
Why Won’t My 4iE Connect to the Internet?
Check you are using a WPA2 password format (less than 10 characters) on your network. Click...
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 display sideways?
Is your thermostat screen displaying in the wrong direction? We're sorry for the inconvenience. Click here...
Why wont my thermostat hold information?
Are you finding that your thermostat is not holding your changed settings? Try this quick fix...
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...
How do I conduct a floor probe test?
If you believe that your floor probe readings are inaccurate or if you are getting an...
ER1 on the Thermostat Meaning
The ER1 message will also occur if no floor sensor is connected to the thermostat. Have...
Should I perform a Reset or Power Cycle my 4iE?
First, loosen the screws at the bottom of your unit at shown in the video clip...
Why is my 4iE Showing an ‘!’ on the Screen?
Ensure you have created your account and registered the thermostat using the Device Number. Click "Read...
Where do I place the sensor probe when installing in-slab cable?
The thermostats sensor probe can be installed in a number of ways and must be housed...
My Floor Heating System Keeps Tripping
The GFCI in thermostats are Class A, which means below 5mA trip levels. This is a...
Make sure that the floor probe that came with the floor heating thermostat was installed and done so properly.
It is vital that the floor heating thermostat's floor probe was not only installed but done...
Was this category helpful?
Let us know so we can improve.