intensity VRF V5 Series Service Manual page 56

V5 X VRF 460V 60Hz
4.4 E4, E7 Troubleshooting
Digital display output
Description
 E4 indicates an outdoor ambient temperature sensor error.
 E7 indicates a compressor top temperature sensor or discharge pipe temperature sensor error.
 All units stop running.
 Error code is only displayed on the unit with the error.
Possible causes
 Temperature sensor not connected properly or has malfunctioned.
 Damaged main PCB.
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