The heater won't turn off

The heater won't turn off

If the heater is always on or the temperature will not go down then please follow the below steps

Set the thermostat into Manual Mode. This will override changes 
Set the temperature to 10 degrees
Leave it for 12-24 hours

If the temperature drops then it may be a timer issue

disable the timers and setup again
Details of how to set timers can be found in the user guide for your thermostat

If the heater still does not turn off then please reset the thermosta back to it's factory default settings and test for 12-24 hours

If the heater still does not turn off then it may be a faulty thermostat. Please contact Coldbuster Support for further assistance.

    • Related Articles

    • Underfloor Heater Diagnostic Procedure

      If the underfloor heating is not warming up then please carry out the following tests Turn the thermostat into Manual mode & raise the heating to 40°C & leave it on for 12 hours. Manual mode overrides any schedules or other settings that may impact ...

    • Thermostat touch screen is unresponsive

      If the touch screen is unresponsive, it may be a result of a cracked screen or the thermostat may be experiencing a different fault. Please be aware that physical damage incurred after you received the product is not covered by the product warranty. ...

    • TH-0108 Thermostat – “Lo” or blank LCD screen

      TH-0108 Thermostat – “Lo” or blank LCD screen If “Lo” is appearing on the screen or the screen is blank, then you will need to change the batteries. To replace the batteries, you will need to remove the front face of the thermostat from the base of ...

    • MCD5 & MWD5 thermostat diagnostic procedure

      If the floor heating is not heating up then follow these steps in order Turn the thermostat to manual mode Change the temperature to 40 degrees Wait for 12 hours to see if the floor temperature is noticeably warmer. If it is not noticeably warmer ...

    • Thermostat Warranty Procedure

      All Coldbuster thermostats carry a three-year, supply only warranty from original date of purchase, subject to the terms and conditions which can be found at https://www.coldbuster.com.au/terms-and-conditions. For us to process your warranty claim ...