115
Failure code
Outdoor
digital
display tube:
47
Indoor wired
controller:
2F
Indoor unit LED status
LED5 Failure description:
Communication with wireless communicai-
ton module failure
20 times
Outdoor unit LED status
LED1 LED2
Normal Normal
1. Model Diagnosis and troubleshooting
MRV 5-HR series
DiagnosisT roubleshooting
2. Abnormity detection method
◆
Check if the dip switch of
BM2-1 and BM2-2 is correct
conditions
Can’t detect the wireless
communication module within
120 seconds continuously,
alarm
4. Possible causes
◆
The dip switch of BM2-1 and
BM2-2 is wrong
Check if the dip switch of BM2-1 and
BM2-2 is OFF position
N
Change t he d ip s witch by
after-sales personnel on site.
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