Gree TERRA09HP230V1A Installation, Service & Troubleshooting page 90

H4 - H6 Error Codes
H4
System is Abnormal
Status:
During cooling mode, compressor will stop,
indoor fan will run. Heating mode all units
stop.
H5
IPM Protection
Status:
During cooling mode, compressor will stop,
indoor fan will run. Heating mode all units
stop.
H6
Indoor Fan Motor will not run
Status:
Indoor fan, Outdoor fan & compressor will
stop. Louver stops at present location.
90
Error Code Diagnostics
Fault & Status Possible Causes
1. Refer to "E8" troubleshooting procedures
1. Refer to "H7" troubleshooting procedures
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