GREE AIR SOURCE HEAT PUMP WATER HEATER SERVICE MANUAL
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4 Operation Instructions
4.1 On/Off Setting
The unit will be started or stopped by pressing the ―On/Off ‖ button.
Note: After energization and under normal communication, the LCD will display the water temperature,
time, and hot water volume (for models with dual temperature sensor) under both On and Off states of the
unit. It means the Off state if the LCD does not display the running mode, as shown in the following figure.
4.2 Common Modes Setting
In the On state of the unit, press the MODE button to switch the operation modes in the following
sequence:
The HOTWATER mode is shown in the following figure.
4.3 Special Modes Setting
If the heat pump of a water heater equipped with an electrical heater is faulty, users can press and
hold MODE+RAPID for 5s in any mode under the state to enter the E-HEATER mode.
Note: The E-HEATER mode can be used only when the heat pump is faulty. In this case, contact the
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