Danfoss R13 B

Receiver troubleshooting
LED Characteristic Description Action
POWER Green; pulsing Receiver is starting up Wait until start-up process is
finished
HARDOK Green; continuous Receiver hardware OK Operate
Red; pulsing EEPROM error; data corruption; CAN bus error (if CANERR
activates)
Reprogram EEPROM
Red; other Electronic board hardware breakdown Replace device
SIGNAL LED off No radio signal detected -
LED on + transmitter switched
off
Radio channel occupied Change transmitter's frequency
channel
LED on + DATA switched off Radio channel occupied by non Danfoss system Change transmitter's frequency
channel
DATA LED off + SINGAL LED on Radio error Replace radio
Green; pulse Receiving good frames OK
ID LED off + DATA LED on No valid ID; Danfoss system nearby If channel not occupied, check
chosen ID in the transmitter or
reset the receiver
LED on + SIGNAL LED on +
DATA LED on
Valid frames received from the transmitter; correct link OK
RELAY Green STOP relay activated -
ORDER Green - -
User Manual
R13 B Receiver
Troubleshooting
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Danfoss | January 2019 BC292365780571en-000101 | 9