High Pressure Protection Switch & Exhaust Temperature Sensor - Gree Neo GWH09MA-A3DNA3A Installation, Service & Troubleshooting

Troubleshooting Outdoor Components
High Pressure Protection Switch & Exhaust Temperature Sensor
The high pressure switch monitors the refrigerant discharge pressure and will shut down the unit if pressures
are higher abnormal. If this is detected, an E1 error code will be generated. Please refer to the troubleshooting
section for more detailed information.
The exhaust temperature sensor monitors the refrigerant discharge temperature and will send information to the
inverter control board for system operation.
The following actions can occur:
Exhaust Temperature > 208 F - Compressor will not rise above present level
Exhaust Temperature > 217 F - Compressor will run at reduced frequency
Exhaust Temperature < 194 F - Compressor off for 3 minutes minimum, the compressor will restart
Error Code F5 will be generated if the sensor is open or shorted. Please refer to the troubleshooting section for
more detailed information.
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