Danfoss Ally - Danfoss eTRV E-Error Codes Description

16
| © Danfoss | FEC | 2023.06 BC349733524454en-010401
User Guide Danfoss Ally™ Radiator Thermostat
Danfoss eTRV E-error codes description
Alarm
code
Problem Solution
E1 Top PCB sensor error. The temperature sensor is damaged, return
to a dealer.
E2 Side PCB sensor error. The temperature sensor is damaged, return
to a dealer.
E6 Motor error. Motor jammed, try to remove/insert battery,
if the error persists try to reset, if still no posi-
tive result return to a dealer.
NOTE! The eTRV will retry after 20 min.
The error code will remain on the display, until
cleared by the controller.
E8 Invalid communication (Zigbee). Try to remove/re-insert battery. If the error
persists, try to reset. If still no positive result,
return to a dealer.
E9 Valve closing ability. It appears the valve cannot be closed correctly.
Please check the installation and/or contact an
installer.