Why does my 9000 series thermostat show "sensor error”?

Last updated

Some of the 9000 series thermostats (RTH9585WF, THX9421R, TH9320WF) are displaying 'sensor error' when placed in low humidity installation locations. If the thermostat spent time in a low humidity environment, such as a cold car or van, warehouse, or the installation location has lower than 10% humidity, the 9000 series can show 'sensor failure' until the ambient humidity rises. We understand this can be alarming to our customers, as the error specifically states to replace the thermostat. Please dismiss the alert and allow 24-48 hours for your thermostat sensor to "normalize" and read the correct humidity in your space.

 

black and white wifi thermostatWifi 9000 thermostat 

 

 

NOT THE DIY TYPE?

Contact a local professional partner.

FIND A PRO

NEED SOME EXTRA HELP?

Chat live with a support agent.

Must accept cookies

Contact Us

Connect with our support team.

Contact Us