Setup: Gree XE71 Wired Remote Controller Owner Manual

Content

Overview

The XE71 Wired Remote Controller is a wall-mounted control interface for compatible GREE indoor air-conditioning units. It provides direct access to operating mode, temperature, fan speed, timer, swing, sleep, turbo, blow, memory, and other system functions.

This controller is intended for installations where a fixed, wired control point is preferred over a handheld remote. Because available functions depend on the connected indoor unit, a button or feature may have no effect on systems that do not support it.

Specifications

Model: XE71-44/G
Controller type: Wired indoor-unit remote controller
Operating temperature setting range: 61°F to 86°F (16°C to 30°C)
Timer range: 0.5 to 24 hours
Temperature adjustment increment: 1°F or 1°C, depending on the selected display scale
Timer adjustment increment: 0.5 hour
Indoor-unit communication connection: Four-core signal line through the CN1 communication interface
Maximum communication distance between the indoor-unit main board and controller: 20 m; the standard distance is 8 m
Smart zone controller capacity: Up to 16 wired-controller communication addresses
Installation hardware: Wall socket box, controller base, M4×25 screws, front panel, ST2.9×6 screw, and 20×20×2 mm sponge

Detailed Description

The XE71 Wired Remote Controller communicates with the indoor unit through a four-core wired connection. Its touchpad contains the Enter/Cancel, Fan, Mode, Function, Timer, On/Off, and temperature adjustment controls. The LCD provides operating status and selected-function information without requiring a separate wireless handset.

The display can show the selected operating mode, fan speed, set or sensed temperature, timer value, swing, sleep, turbo, blow, memory, lock, shield, defrost, gate-control, electric-heater, quiet, and other status symbols. Some symbols are reserved for functions that may not be supported by the connected unit.

The controller can use the indoor unit’s return-air sensor, its own sensor, or a mode-dependent combination of both. The available sensor selection is configured through the controller’s commissioning mode.

Buttons and Main Functions

Enter/Cancel: Confirms a selected function or cancels an active function.
Temperature up and down: Adjusts the set temperature or timer value.
Fan: Selects low, middle, high, or automatic fan speed.
Mode: Selects Auto, Cooling, Dry, Fan, or Heating operation.
Function: Opens additional functions such as swing, sleep, turbo, blow, and auxiliary heating when supported.
Timer: Opens timer-on or timer-off adjustment.
On/Off: Starts or stops the indoor unit.

Safety

Do not install the controller in a highly humid location or where direct sunlight can reach it.
Keep the controller from being dropped, shaken, thrown, or repeatedly disassembled.
Do not operate the wired or wireless remote controller with wet hands.
Do not remove or install the controller without qualified HVAC assistance.
Disconnect electrical power before beginning installation or wiring work.
Keep signal and communication wiring at least 20 cm away from power cables and indoor-to-outdoor connection wiring to reduce electromagnetic interference.
Use shielded twisted-pair communication wiring where the installation location is exposed to electromagnetic interference.
When both wired and wireless controllers are used, the wireless controller can override automatic-mode settings made by the wired controller.

Setup and Operation

Starting and Stopping the Unit

Press On/Off once to start the indoor unit. Press it again to stop operation. The LCD indicates whether the system is operating or off.

Selecting an Operating Mode

With the unit operating, press Mode repeatedly to cycle through Auto, Cooling, Dry, Fan, and Heating. The connected indoor unit determines which selections are usable.

Adjusting Temperature

Press the temperature up or down button to change the setpoint. Holding either button changes the value by 1°F or 1°C approximately every half second. Temperature adjustment is available from 61°F to 86°F (16°C to 30°C) in Cooling, Dry, Fan, and Heating modes. Auto mode does not allow manual temperature adjustment.

Choosing Fan Speed

Press Fan to cycle through low, middle, high, and automatic fan speed. The selection can be made while the unit is on or off.

Using the Timer

Press Timer to open the timer setting. Use the temperature up or down buttons to choose a time between 0.5 and 24 hours, changing the value in 0.5-hour steps. Press Enter/Cancel to confirm.

To cancel an existing timer, press Timer. If no timer value appears on the LCD, the timer is not active.

The timer operates as a delayed on or delayed off function according to the current state of the indoor unit.

Setting Swing

With the unit on, press Function until the swing option appears. Press Enter/Cancel to activate or cancel the function. After making a selection, press Enter/Cancel to leave the function-setting screen.

Using Sleep

Press Function until the sleep option is displayed, then use Enter/Cancel to switch it on or off. Sleep 1 is the supported sleep function identified for this controller.

In Cooling or Dry mode, the temperature rises by 1°C after the first hour and by another 1°C after the second hour, then remains at that adjusted level. In Heating mode, the temperature decreases by 1°C after each of the first two hours and then remains at the adjusted level.

Using Turbo

Turbo increases airflow while the unit operates at high fan speed to help the room approach the selected temperature more quickly. Select the turbo option with Function, then press Enter/Cancel to activate or cancel it. Turbo is intended for Cooling or Heating operation.

Using Auxiliary Electric Heat

In Heating mode, press Function to reach the E-heater option. Press Enter/Cancel to change its state when the connected indoor unit supports auxiliary electric heating.

The E-heater function may activate automatically when Heating mode is selected. This function is identified as unavailable in U.S. applications in the controller documentation.

Using Blow

Blow keeps the indoor fan running at low speed for approximately two minutes after the unit is turned off. This allows moisture on the indoor evaporator to dry and helps reduce conditions that can encourage mildew.

To activate or cancel Blow, press Function until the blow option appears, then press Enter/Cancel. Blow is available in Cooling and Dry modes, but not in Fan or Heating mode.

Locking the Touchpad

With the unit on and operating normally, or while it is off, press the temperature up and down buttons together for five seconds. The lock symbol appears and other button presses no longer produce a response.

Press the same two buttons together for another five seconds to cancel the lock.

Power-Failure Memory

With the unit off, press Mode and the temperature up button together for five seconds to switch memory on or off. The memory symbol indicates that the feature is enabled.

When memory is enabled, the controller can restore the previous On/Off state, operating mode, set temperature, fan speed, and lock state after power returns. When memory is disabled, the indoor unit returns to the off state after a power interruption.

Selecting the Temperature Sensor

Turn the unit off, then press Function and Timer together for five seconds to enter commissioning mode. Use Mode to display 00 in the temperature area, then use the temperature buttons to select the sensing arrangement:

01: Uses the indoor unit return-air temperature sensor.
02: Uses the temperature sensor in the wired controller.
03: Uses the return-air sensor in Cooling, Dry, and Fan modes, and the controller sensor in Heating and Auto modes.
04: Uses the controller sensor in Cooling, Dry, and Fan modes, and the return-air sensor in Heating and Auto modes.

If no manual selection has been made, the controller can choose a sensor arrangement based on the connected indoor-unit type. Press On/Off to leave commissioning mode without saving changes. The controller also exits without saving if no button is pressed for 20 seconds.

Selecting the Fan-Speed Range

Enter commissioning mode by pressing Function and Timer together for five seconds while the unit is off. Use Mode to display 01 in the temperature area, then select one of the available fan-speed ranges:

01: Three lower fan-speed levels.
02: Three higher fan-speed levels.

Press On/Off to exit without saving. The controller also leaves this mode without storing changes after 20 seconds of inactivity.

Installation

Signal-Line Connection

Switch off electrical power to the installation.
Open the indoor unit’s electrical control-box cover.
Pass the wired-controller signal cable through the rubber sealing ring.
Connect the four-core signal cable to the indoor unit’s four-pin socket.
Secure the cable with suitable ties so it cannot pull on the connection.

The controller communication distance can reach 20 m, although 8 m is the standard distance stated for the installation.

Wall-Mounting Procedure

Confirm that power is disconnected from the wiring in the wall opening.
Pull the four-core twisted-pair cable through the installation opening and through the rectangular opening in the controller base.
Position the base on the wall and fasten it with the M4×25 screws.
Attach the supplied 20×20×2 mm sponge over the screw area and press it firmly into place.
Insert the communication cable into the controller terminal slot.
Fit the front panel onto the base.
Secure the assembly with the ST2.9×6 screw.

CN1 is the RS-485 communication interface for the four-core communication wire. CN2 and CN3 are provided for connection to a smart zone controller. Either or both of these terminals may be used as required.

Smart Zone Controller Wiring

The XE71 Wired Remote Controller can be connected as part of an integrated smart zone control system. The system can support up to 16 communication node addresses.

Connect terminals A and B of the smart zone controller to the corresponding communication terminals of the first controller. Continue the communication cable from one controller to the next. On the final controller, use only CN2 or CN3 and leave the other terminal unconnected.

For the final controller in the communication chain, set DIP switch position 1 to On and position 2 to Off. Leave both DIP-switch positions Off on other controllers.

Removing the Controller

Disconnect electrical power before dismantling. Separate the front panel from the base, remove the securing hardware, disconnect the communication cable, and then remove the base from the wall. Installation and dismantling should be performed by qualified HVAC personnel.

Troubleshooting

Controller Does Not Respond

Check whether the touchpad lock is active. Unlock it by holding the temperature up and down buttons together for five seconds.
Confirm that the connected indoor unit supports the selected function. Unsupported functions may produce no response without indicating a controller fault.
Have a qualified technician verify the four-core communication connection and power supply.

Communication Problems

Check that the signal cable is connected to the correct four-pin indoor-unit socket.
Ensure that signal and communication wiring is separated from power wiring by at least 20 cm.
In areas with electromagnetic interference, verify that shielded twisted-pair wiring is being used.
For multi-controller systems, check the wiring sequence and final-controller DIP-switch setting.

Error Codes

When the air-conditioning system detects a fault, its code appears on the LCD. If several faults occur, the codes cycle through the display. Turn off the unit and arrange professional service rather than attempting internal repairs.

F1: Return-air temperature sensor open or short circuit.
F2: Indoor evaporator temperature sensor open or short circuit.
F3: Outdoor ambient temperature sensor open or short circuit.
F4: Outdoor condenser mid-pipe temperature sensor open or short circuit.
F5: Discharge-temperature sensor open or short circuit.
E6: Indoor and outdoor communication fault.
E1: Indoor and outdoor units do not match.
P6: Drive-board communication fault.
H3: Compressor overheating protection.
H7: Compressor desynchronization.
H5: Intelligent power-module temperature protection.
P8: Intelligent power-module current protection.
E4: High-discharge-temperature protection.
E5: Whole-unit over-current protection.
E8: Overload protection.
U1: Compressor phase-current sensing fault.
U3: DC-bus voltage drop.
U5: Whole-unit current sensing fault.
LP: Indoor and outdoor unit mismatch.
PF: Indoor unit full-water condition.

Additional displayed codes can identify sensor faults, refrigerant or pressure protection, fan problems, valve faults, drive-board issues, and other system conditions. Because diagnosis depends on the connected indoor and outdoor units, error-code service should be completed by professionally skilled personnel.

Pros & Cons

Pros: Fixed wall-mounted control, broad mode selection, timer adjustment from 0.5 to 24 hours, configurable temperature sensing, memory after power recovery, lock mode, and compatibility with multi-controller smart zone arrangements.
Cons: Feature availability depends on the connected indoor unit; installation requires low-voltage communication wiring and qualified electrical/HVAC work; several advanced functions are unavailable on specified systems or in U.S. applications.

PDF

Faqs

How do I turn the XE71 Wired Remote Controller and indoor unit on or off?

Press the On/Off button once to start the connected indoor unit, then press it again to stop operation. After power is restored, the unit’s behavior depends on the Memory setting. With Memory enabled, the controller can restore the previous on/off state, mode, temperature, fan speed, and lock status. With Memory disabled, the system returns to the off state. Check the LCD before changing settings so you know whether the unit is operating.

How do I select a mode and adjust the temperature on the XE71?

When the unit is on, press Mode repeatedly to cycle through Auto, Cooling, Dry, Fan, and Heating. Use the up or down buttons to change the set temperature in Cooling, Dry, Fan, or Heating mode. The available setting range is 61°F to 86°F, or 16°C to 30°C. Temperature adjustment is not available in Auto mode. Holding an adjustment button changes the setting continuously at the controller’s defined increment.

How can I set an on or off timer with the XE71 Wired Remote Controller?

Press Timer to enter timer adjustment, then use the up or down buttons to choose a delay from 0.5 to 24 hours. The value changes in 0.5-hour increments, and holding a button continues the adjustment. Press Enter/Cancel to confirm the setting. To cancel an existing timer, press Timer and confirm when no timer value is displayed. The controller can be adjusted while the indoor unit is on or off, depending on whether delayed shutdown or startup is needed.

Why does the XE71 show a lock symbol, and how do I unlock it?

The lock function prevents accidental button presses and stops other settings from being changed. To activate it, make sure the unit is on without a malfunction or is off, then press the up and down buttons together for five seconds. The lock symbol appears and other buttons will not respond normally. Press the same two buttons together for another five seconds to cancel the lock. If nothing happens, confirm that both buttons are being pressed simultaneously.

How do I use the XE71 swing, sleep, Turbo, or Blow functions?

Press Function repeatedly while the unit is operating until the desired function appears, then press Enter/Cancel to activate or cancel it. Swing adjusts airflow movement, Sleep changes temperature gradually for nighttime comfort, and Turbo uses high fan speed for faster cooling or heating. Blow operates after shutdown in Cooling or Dry mode and keeps the indoor fan running at low speed for about two minutes to dry the evaporator. Some functions may be unavailable on specific indoor units.

What should I check if the XE71 buttons do not respond or settings do not work?

First check whether the lock symbol is displayed, because locked controls ignore button presses. A remote monitor may also shield individual buttons, temperature adjustment, On/Off, or Mode functions. Some XE71 features are unavailable with certain indoor units, so selecting them may produce no response without indicating a fault. Confirm the unit’s operating state, press Enter/Cancel when a function requires confirmation, and check that the controller is not being operated with wet hands.

What are the installation and safety requirements for an XE71 Wired Remote Controller?

Installation should be performed with the power supply disconnected; never connect or remove the controller while energized. The four-core communication line connects to the indoor unit’s four-pin interface, and signal wiring must be kept at least 20 cm away from power and indoor-to-outdoor connection lines to reduce interference. Avoid humid locations and direct sunlight, and do not drop, shake, frequently disassemble, or install the controller yourself. Use a licensed HVAC technician for installation or removal.

What should I do when an error code appears on the XE71 display?

An error code indicates that the connected air-conditioning system has detected a problem. If multiple faults occur, their codes may appear one after another on the LCD. Record the displayed code and observe whether the unit stops, behaves abnormally, or shows additional codes. Turn off the unit and avoid repeatedly restarting it while the fault remains. Error codes can involve sensors, communication, temperature protection, drainage, or outdoor-unit components, so diagnosis and repair should be handled by professionally skilled HVAC personnel.