intensity VRF V5 Series Service Manual page 64

V5 X VRF 460V 60Hz
4.8 xH0, H1 Troubleshooting
Digital display output
In the error code, 'x' is a placeholder for the compressor system (compressor and related electrical components), with 1
representing compressor system A and 2 representing compressor system B.
Description
 1H0 indicates a communication error between the main control chip and the compressor A inverter driver chip.
 2H0 indicates a communication error between the main control chip and the compressor B inverter driver chip.
 H1 indicates a communication error between the main control chip and the communication chip.
 All units stop running.
 Error code is only displayed on the unit with the error.
Possible causes
 Power supply abnormal.
 Transformer malfunction.
 Interference from a source of electromagnetic radiation.
 Main PCB damaged.
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