Installation Guide CF-MC Master Controller
12
01/2016 VIUHK902 Danfoss Heating Solutions
9. Troubleshooting
9.1 CF-MC Master Controller
Error indication Possible Causes
Output LED(s), alarm LED and output menu
LED flash. Buzzer is ON*
Output or actuator is short-circuited or the actua-
tor is disconnected
Output LED(s), alarm LED and input menu
LED flash. Buzzer ON after 12 hours**
No wireless signal from room thermostat con-
nected to this or these outputs or the temperature
in the according room is below 5 °C. (Try to verify
the function of the room thermostat by making a
link test)
Output LEDs 1-4, alarm LED and input LED
flash
No signal from the CF-RC Remote Controller
Output LEDs 1-5, alarm LED and input menu
LED flash
No signal from CF-MC Master Controller 2 or 3
CF-MC Master controller 1:
Alarm and Install LED’s flashes for approx.
20 sec.
CF-MC Master Controller 2:
Alarm LED lights up for approx. 1 sec.
CF-MC Master Controller 2 has an older version of
software, which is not compatible with the newer
software in CF-MC Master Controller 1
* Buzzer is shut off by pressing OK. The error indication continues until the error is fixed.
** If the room thermostat signal is lost, the CF-MC Master Controller output will be activated 15 minutes
every hour for frost protection until the error is fixed
9.2 CF-RS, -RP, -RD and -RF Room Thermostats
Error indication Possible Causes
The LED ( and *) flashes every 5th
minute
Low battery
The LED ( and *) flashes every 30 sec.
Critical low battery
The LED, , and flashes*
Critical low battery
- transmission has stopped
The LED ( and *) flashes 5 times
Installation/Link Test is unsatisfactory
E03 and *
Actuator error on output (CF-MC)
E05 and *
Room temperature below 5 °C
* Only valid for CF-RD and -RF Room Thermostats
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