Troubleshooting
Showing help for
6iE Smart Thermostat
6iE Troubleshooting 2025
Are you experiencing an error on your thermostat? Read this guide for tips on 6iE troubleshooting.
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 the triangle with an exclamation mark (!) on my 6iE mean?
If the 6iE displays a triangle with an exclamation mark (see below) a limit temperature has...
What is the Control Period mean on my Warmup 6iE?
The "Control Period" checks the difference in the current measured temperature and the set temperature in...
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 wont my 6iE connect to internet?
Are you experiencing issues connecting your 6iE to WiFi? Find some useful tips for resolving this...
ER1 on the Thermostat Meaning
The ER1 message will also occur if no floor sensor is connected to the thermostat. Have...
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...
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...
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