GREE AIR SOURCE HEAT PUMP WATER HEATER SERVICE MANUAL
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configurable parameter codes and values. Press ▲ or ▼ to select P5 and press the MODE button. Then
item value 00 or 01 blinks under the parameter code P5. Press ▲ or ▼ to select the item value and press
the MODE button to confirm setting (00: ℃ and 01: ℉). After that, press the FUNCTION button to return
to the main interface. If no operation is performed with 15s, it will switch back to the main interface
automatically.
Note: Other parameters cannot be modified; otherwise, operation exception will be caused.
4.8 Errors Display
When some errors occur during operation, the error codes will be displayed on the controller.
Meanwhile, the unit is in the Off state and the controller supports only the on/off and query functions.
If multiple errors occur to the water heater simultaneously, the corresponding error codes will be
displayed circularly.
If the controller displays a error, shut down the water heater and contact qualified personnel for
maintenance. The following figure shows a communication error.
For details on error codes, see the table attached at the end of this manual.
NOTES: Controller ZF5201 refer to the operational method ibidem.
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