Troubleshooting; Error Indication - Danfoss CF-MC Anleitung

Instruction CF-MC Master Controller

8. Troubleshooting

Error indication

Output LED(s), alarm LED
and output menu LED
flash. Buzzer is ON*
Output LED(s), alarm
LED and input menu LED
flash. Buzzer ON after 1
hours**
Output LEDs 1-4, alarm
LED and input LED flash
Output LEDs 1-5, alarm
LED and input menu LED
flash
* Buzzer is shut off by pressing OK. The error indication continues until the
error is fixed
** If the Room Thermostat signal is lost, the Master Controller output will
be activated 15 minutes every hour for frost protection until the error is
fixed

VI.UH.K1.52
Possible Causes
Output or actuator is short-circuited or
the actuator is disconnected
No wireless signal from Room Thermostat
connected to this or these outputs or the
temperature in the according room is be-
low 5°C. (Try to verify the function of the
room thermostat by making a link test)
No signal from the Remote Controller
No signal from Master Controller # or #
Produced by Danfoss Floor Heating Hydronics 08.005