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Troubleshooting Outdoor Components
High Pressure Protection Switch & Exhaust Temperature Sensor
e 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.
e exhaust temperature sensor monitors the refrigerant discharge temperature and will send information to the
inverter control board for system operation.
e 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 o for a3 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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