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Error Code Diagnostics
H4 - H6 Error Codes
System is Abnormal
Status:
During cooling mode, compressor will stop,
indoor fan will run. Heating mode all units
stop.
1. Refer to “E8” troubleshooting procedures
Fault & Status Possible Causes
1. Refer to “H7” troubleshooting procedures
IPM Protection
Status:
During cooling mode, compressor will stop,
indoor fan will run. Heating mode all units
stop.
Indoor Fan Motor will not run
Status:
Indoor fan, Outdoor fan & compressor will
stop. Louver stops at present location.
1. Bad connection of DC motor feedback
terminal
2. Bad connection of DC motor control end
3. Check Fan Capacitor if in Use
4. Fan motor is stalling, check for obstructions
5. Motor malfunction
6. Malfunction of main board
H4
H5
H6
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