Alarm code: 2011
B20 - Heating coil frost alarm zone 2
Description
The return water sensor from the Zone 2 water based heater is indicating a low temperature and the unit is stopped in order to prevent freezing of the water based heater. (Only valid if you have installed an additional heater)
Instructions
- Check that the source providing heat to the water based heater is producing hot water.
- Try to reset the alarm following the procedure described for the Flexit GO app or control panel, dependant on which device you are using.
- In case this action doesn’t solve your problem, please contact your service partner.