Troubleshooting - Danfoss Cf-Rd Manuel D'instructions

Instruction CF-RD Room Thermostat with Display

8. Troubleshooting

Error Indication
The LED,
ashes every 5th minute
The LED,
ashes
The LED,
ashes
The LED,
ashes 5 times
E03 and
E05 and
VI.UH.Q3.80
and
and
, and
and
Produced by Danfoss Floor Heating Hydronics 01.2006
Possible Cause
Low battery
Critical low battery
Critical low battery -
transmission has stopped
Installation/Link Test is
unsatisfactory
Actuator error on output
(CF-MC)
Room temperature below
5ºC
11