Danfoss 088U0212 Instruction page 11

Cf-rd room thermostat with display

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Instruction CF-RD Room Thermostat with Display

8. Troubleshooting

Error Indication

The LED,

flashes every 5th minute

The LED,

flashes every 30 sec.

The LED,

flashes

The LED,

flashes 5 times

E03 and

E05 and

VI.UH.Q4.1C

and

Produced by Danfoss Floor Heating Hydronics 03.2007

Possible Cause

Low battery

Critical low battery

Critical low battery - trans-

mission has stopped

Installation/Link Test is

unsatisfactory

Actuator error on output

(CF-MC)

Room temperature below

5ºC

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