Gree RIO09HP230V1A Installation, Service & Troubleshooting
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Gree RIO09HP230V1A Installation, Service & Troubleshooting

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DUCTLESS SYSTEM
Installation, Service & Troubleshooting
Models:
All manuals and user guides at all-guides.com
RIO09HP115V1A
RIO12HP115V1A
RIO09HP230V1A
RIO09HP230V1B
RIO12HP230V1A
RIO12HP230V1B
RIO18HP230V1A
RIO24HP230V1A

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Summary of Contents for Gree RIO09HP230V1A

  • Page 1 All manuals and user guides at all-guides.com DUCTLESS SYSTEM Installation, Service & Troubleshooting Models: RIO09HP115V1A RIO12HP115V1A RIO09HP230V1A RIO09HP230V1B RIO12HP230V1A RIO12HP230V1B RIO18HP230V1A RIO24HP230V1A...

  • Page 2: Table Of Contents

    All manuals and user guides at all-guides.com Table of Contents Safety Precautions & Warnings......................... Model Number Identification..........................Physical & Electrical Data..........................5 - 7 Product Introduction............................Refrigeration Cycles and Components......................9 - 13 Indoor & Outdoor Components........................14 - 15 Basic &...

  • Page 3: Safety Precautions & Warnings

    All manuals and user guides at all-guides.com Safety Precautions & Warnings Warning Caution Installing, starting up, and servicing air conditioner can be • Never install the unit in a place where a combustible hazardous due to system pressure, electrical components, gas might leak, or it may lead to fire or explosion.

  • Page 4: Model Number Identification

    All manuals and user guides at all-guides.com Model Number Identification Product Catalog Number-Nomenclature Example RIO24HP230V1AH 230V S - System O - Outdoor H - Indoor High Wall D - Indoor Duct C - Indoor Cassette F - Indoor Floor/Ceiling TERRA Revision Level Style/Color Designation 09 - 9,000 btuh...

  • Page 5: Physical & Electrical Data

    All manuals and user guides at all-guides.com Physical & Electrical Data, cont. Model RIO09HP115V1A RIO12HP115V1A System Type Heat Pump Power Supply 115v / 60Hz 115V / 60Hz Rated Current Cooling Amps 15.0 Rated Current Heating Amps 15.5 System Performance Cooling Cap (Min/Max) Btu/h 9,000 (3,500-11,000) 11,800 (3,300-12,500)
  • Page 6 All manuals and user guides at all-guides.com Physical & Electrical Data, cont. RIO12HP230V1A & 1B Model RIO09HP230V1A & 1B System Type Heat Pump Power Supply 208-230v / 60Hz 208-230V / 60Hz Rated Current Cooling Amps Rated Current Heating Amps System Performance...
  • Page 7 All manuals and user guides at all-guides.com Physical & Electrical Data, cont. Model RIO18HP230V1A RIO24HP230V1A System Type Heat Pump Power Supply 208-230v / 60Hz 208-230V / 60Hz Rated Current Cooling Amps 11.5 Rated Current Heating Amps 11.8 13.0 System Performance Cooling Cap (Min/Max) Btu/h 18,000 (4,500-21,000)

  • Page 8: Product Introduction

    All manuals and user guides at all-guides.com Product Introduction System Overview The RIO Ductless split heat pumps are single zone units available in size from 9000 btuh to 24,000 btuh providing heating and cooling. All comfort settings Indoor Display are controlled by a remote control. The RIO unit has many features to enhance comfort and efficiency.

  • Page 9: Refrigeration Cycles And Components

    All manuals and user guides at all-guides.com Refrigeration Cycles and Components Refrigeration Components Outdoor Unit Indoor Unit Strainer Temperature Sensor Heat Exchanger Temperature Sensor Heat Exchanger 4-way Electronic Expansion Valve Discharge Sensor Accumulator Compressor Note: Component locations may vary depending on models.
  • Page 10 Cooling Mode All manuals and user guides at all-guides.com Refrigeration Cycles and Components Cooling Mode Outdoor Unit Strainer Indoor Unit Temperature Heat Sensor Strainer Exchanger *Electronic expansion valve Heat Exchanger 4-way 4-way valve valve Temperature Sensor Discharge Silencer Discharge Temperature Sensor Accumulator not on all sizes...
  • Page 11 All manuals and user guides at all-guides.com Refrigeration Cycles and Components Cooling Mode A. Hot gas is discharged from the compressor. The temperature of the gas is monitored by the Discharge Temperature sensor and sent to the outdoor control panel. B.
  • Page 12 All manuals and user guides at all-guides.com Refrigeration Cycles and Components Heating Mode Outdoor Unit Filter Temperature Heat Indoor Unit Sensor Exchanger *Electronic expansion valve Heat Exchanger 4-way 4-way valve valve Temperature Sensor Discharge Silencer Discharge Temperature Sensor Accumulator not on all sizes...
  • Page 13 All manuals and user guides at all-guides.com Refrigeration Cycles and Components Heating Mode A. Hot gas is discharged from the compressor. The temperature of the gas in monitored by the Discharge Temperature sensor and sent to the outdoor control panel. B.

  • Page 14: Indoor & Outdoor Components

    All manuals and user guides at all-guides.com Indoor Unit Components Indoor Unit Components RIO 12,000 btuh model Other RIO models may very slightly. Indoor Circuit Board Fan Motor Indoor Tube Thermistor Swing Motor Ambient Temperature Sensor Note: Component locations may vary depending on models.
  • Page 15 All manuals and user guides at all-guides.com Outdoor Unit Components Outdoor Unit Components RIO 12,000 btuh Outdoor Unit Other RIO models may very slightly. Outdoor Sensor, (mounted AP1 Board on outside of coil) Outdoor Fan 4-Way Valve Capacitors Expansion Valve Exhaust Temp Sensor Outdoor Tube...

  • Page 16: Basic & Protection Functions

    All manuals and user guides at all-guides.com Basic & Protection Functions Basic Functions The compressor should stay off for at least 3 minutes before starting the unit. The compressor circuit has a 3 minute delay if the compressor is de-energized during a run cycle. If the compressor starts from a de-energized cycle, there will be no time delay.
  • Page 17 All manuals and user guides at all-guides.com Basic & Protection Functions Basic Functions 3)Heating Mode Heating Process When the indoor ambient drops 40 F below the preset temperature, the unit will start the heating cycle. The outdoor fan, compressor and 4-way valve will operate. The indoor fan will operate in the “Cold Air Prevention” mode in which the indoor fan will have a 2 minute delay after the call for heating.
  • Page 18 All manuals and user guides at all-guides.com Basic & Protection Functions Basic Functions Defrost Process You may force a defrost in heat mode by pressing the “+” and “-” buttons alternately three times within 5 seconds. 1) The unit will enter defrost when the following conditions are met: A.
  • Page 19 All manuals and user guides at all-guides.com Basic & Protection Functions Basic Functions Cold Air Prevention (Heating mode with compressor running) The system guards against discharging cold air in heating mode. It will delay the indoor fan until the evaporator coil has warmed up to discharge warm, comfortable air into the room.
  • Page 20 All manuals and user guides at all-guides.com Basic & Protection Functions Protection Functions Common Protection Functions and Fault Displays Coil High Temperature Protection = measured temperature of outdoor coil in cooling mode, measured temperature of indoor coil in heating mode. tube 1) Outdoor Coil High Temperature Protection - In cooling mode the software will monitor the outdoor coil for an abnormal high temperature condition.
  • Page 21 All manuals and user guides at all-guides.com Basic & Protection Functions Protection Functions 8) Communication Fault If the unit fails to receive correct signals for a 3 minutes, communication fault will occur and the whole system will stop and a “E6” will be displayed on the front panel of the indoor unit.

  • Page 22: Remote Control Operation

    All manuals and user guides at all-guides.com Remote Control Operation Remote Buttons Note: This remote control is used in other models and some features may or may not be available. Consult the owners manual for specific features for your model. There should be no obstructions between the remote control and the indoor unit for proper operation.
  • Page 23 All manuals and user guides at all-guides.com Remote Control Operation Display Icons 15. Mode icons 16. Lock icon 17. Light icon 18. Sleep icon 19. Temperature icon 20. Up & down swing icon 21. Left & right swing icon 22. Set time icon 23.
  • Page 24 All manuals and user guides at all-guides.com Product Introduction Remote Control Functions 1)On/Off The on-off state will change with each button press. 2) Mode Setting Each time you press this button, a mode is selected in a sequence that goes from AUTO, COOL, DRY, FAN,and HEAT After energization, AUTO mode is defaulted.
  • Page 25 All manuals and user guides at all-guides.com Product Introduction Remote Control Functions 9) X-Fan Allows fan to run after cooling cycle to dry off the coil and inhibit the growth of bacteria and mildew. Works with “Auto” mode. 10)Temp Button Toggles the display between set temperature, indoor temperature and outdoor temperature.

  • Page 26: Refrigerant Lines Connection, Evacuating And Charging

    All manuals and user guides at all-guides.com Refrigerant Lines Connection, Evacuating and Charging Refrigerant Lines Preparation & Connection The refrigerant lines should be kept sealed until ready to be connected. Follow the following steps to ensure a quality leak proof installation: Step 1.
  • Page 27 All manuals and user guides at all-guides.com Refrigerant Charging Procedure Please refer to your units installation manual for proper charge. If your lineset exceeds the chart below for your model, additional charge may be required. The charge must we weighed in with a refrigerant charging scale. You can only add additional refrigerant to a new installation.
  • Page 28 All manuals and user guides at all-guides.com Refrigerant Charging Procedure 2. Leak Testing Follow the procedures for leak testing with nitrogen prior to adding charge on a new installation or existing one suspected for leaks. See preceding page. 3. Attach hoses to the unit and vacuum pump 5/16”...
  • Page 29 All manuals and user guides at all-guides.com Refrigerant Charging Procedure, cont. 5. Begin adding additional refrigerant Charging should be completed with the unit off (not running) and through the liquid side with liquid refrigerant. If there are no ports on the liquid side, use the gas side port connection, charging with liquid.

  • Page 30: Installation And Filter Maintenance

    All manuals and user guides at all-guides.com Installation Proper installation site is vital for correct and efficient operation of the unit. Avoid the following sites where: • Strong heat sources, vapors, flammable gas or volatile liquids are emitted. • High-frequency electro-magnetic waves are generated by radio equipment, welders and medical equipment. •...
  • Page 31 All manuals and user guides at all-guides.com Installation Mounting Plate Installation 1. The mounting plate should be installed horizontally and level. 2. Measure the center of the indoor unit. Please note, that depending on model, the center of the bracket may not correspond with the center of the unit.
  • Page 32 All manuals and user guides at all-guides.com Installation Install Drain Hose 1. Connect the drain hose to the outlet pipe of the indoor unit using appropriate connections. 2. Insulate the condensate to prevent condensation. 3. Fasten the condensate, lineset and wring together to prevent damage and movement.
  • Page 33 All manuals and user guides at all-guides.com Installation Pressure and Leak Test 1. Use only dry nitrogen with a pressure regulator for pressurizing unit. Pressurize with 150 psi of dry nitrogen. 2. Apply soap and water to check whether the joints are leaky.
  • Page 34 All manuals and user guides at all-guides.com Installation Connect the Outdoor Wiring 115 volt unit shown 115 Volt unit 1. Remove the handle on the right side plate of the outdoor unit. 2. Connect wiring from indoor unit to 1,2,3 & ground, being careful to match color code of indoor connections.
  • Page 35 All manuals and user guides at all-guides.com Filter Maintenance and Emergency Operation Cleaning Air Filter 1. Lift open the front panel as shown on the picture 2. The first stage filter can be cleaned with a vacuum cleaner or by washing with a mild soap and <...

  • Page 36: Electrical Schematics

    All manuals and user guides at all-guides.com Electrical Schematics 9K, 12K 115V Indoor Board Symbol Color Symbol Symbol Color Symbol White Brown Yellow Blue Black YEGN Yellow/Green Protective Earth These circuit diagrams are subject to change without notice, please refer to the one supplied with the unit.
  • Page 37 All manuals and user guides at all-guides.com Electrical Schematics 9K, 12K 115V Outdoor Unit Symbol Parts Name Symbol Parts Name Neutral Wire, 110v Live Wire White 4-Way Valve Yellow Electric Expansion Valve Reactor Brown COMP Compressor Blue Protective Earth Black Overload YEGN Yellow/Green...
  • Page 38 All manuals and user guides at all-guides.com Electrical Schematics 9K, 12K 230V Indoor Board 9 & 12k These circuit diagrams are subject to change without notice, please refer to the one supplied with the unit.
  • Page 39 All manuals and user guides at all-guides.com Electrical Schematics 9K, 12K 230V Outdoor Unit These circuit diagrams are subject to change without notice, please refer to the one supplied with the unit.
  • Page 40 All manuals and user guides at all-guides.com Electrical Schematics Indoor Unit These circuit diagrams are subject to change without notice, please refer to the one supplied with the unit.
  • Page 41 All manuals and user guides at all-guides.com Electrical Schematics Indoor Unit...
  • Page 42 All manuals and user guides at all-guides.com Electrical Schematics Indoor Unit...
  • Page 43 All manuals and user guides at all-guides.com Electrical Schematics 18K, 24K These circuit diagrams are subject to change without notice, please refer to the one supplied with the unit.
  • Page 44 All manuals and user guides at all-guides.com Electrical Schematics 18K, 24K These circuit diagrams are subject to change without notice, please refer to the one supplied with the unit.

  • Page 45: Outdoor Circuit Board

    All manuals and user guides at all-guides.com Printed Circuit Boards AP-1 Circuit Board Compressor Heater Band N2 - Voltage Terminal 4-Way Valve Compressor Wires Thermistor wires...

  • Page 46: Troubleshooting Indoor Components

    All manuals and user guides at all-guides.com Troubleshooting Indoor Components Indoor Fan Motor Troubleshooting To check the condition of the indoor fan motor voltage measurements and resistance measurements can be compared to the following charts. Care must be taken when checking voltage measurements, all wires and terminals must...
  • Page 47 All manuals and user guides at all-guides.com Troubleshooting Indoor Components Step Motor Troubleshooting To check the condition of the indoor step (swing) motor resistance measurements may be compared to the following chart. Resistance measurements must be taken with power off and the connector removed from the board.

  • Page 48: Troubleshooting Outdoor Components

    All manuals and user guides at all-guides.com Troubleshooting Outdoor Components EEV Troubleshooting Heating Mode Cooling Mode Input Output Output Input To check the operation of the EEV Valve in cooling To check the operation of the EEV Valve in heating mode, using a digital thermometer record the mode, using a digital thermometer record the temperature of the input line and the output line...
  • Page 49 All manuals and user guides at all-guides.com Troubleshooting Outdoor Components 4-Way Valve Troubleshooting Heating Mode Cooling Mode To Accumulator To Accumulator To Condenser To Condenser Suction Line Suction Line Coil Coil Compressor Compressor Discharge Discharge Checking the 4-way valve in cooling mode requires Checking the 4-way valve in heating mode requires the measurement of 4 readings.
  • Page 50 All manuals and user guides at all-guides.com Troubleshooting Outdoor Components Temperature Sensor Check Temperature Sensor Using a glass of ice water, place the sensor into the glass with a digital thermometer. Wait a few minutes for the reading to stabilize. Compare the readings to the sensor tables in Appendix “A”, it the reading are not comparable, replace the sensor.
  • Page 51 All manuals and user guides at all-guides.com Troubleshooting Outdoor Components Compressor Windings Compressor Windings Red, Yellow & Blue Wires Slightly depress tab for easy removal Compressor Winding Resistance Check: Remove the compressor wires from the AP1 circuit board. The wires red to yellow, yellow to blue & red to blue should have readings from 2 - 4 ohms.
  • Page 52 All manuals and user guides at all-guides.com Troubleshooting Outdoor Components Outdoor Fan Motor Outdoor Motor Winding Resistance Check: Disconnect power to the unit, all reading are made with no power and fan motor wires disconnected from circuit board. The chart below will indicate the approximate resistance values in ohms. This motor is a brush-less DC motor, readings may vary slightly for different models.
  • Page 53 All manuals and user guides at all-guides.com Troubleshooting Outdoor Components Compressor Crankcase Heater Check Compressor Crankcase Heater Resistance Check: Unplug the wire connector from the circuit board. The resistance should read approximately 2.15K ohms. There should be no reading from either wire to ground. If readings vary from these measurements, replace the heater. Refrigerant Temperature Sensors These sensors are a negative coefficient thermistor that decrease in resistance as the temperature increases.
  • Page 54 All manuals and user guides at all-guides.com Troubleshooting Outdoor Components Liquid Line Temperature Sensors These sensors are a negative coefficient thermistor that decrease in resistance as the temperature increases. The sensors are used to monitor the temperature of the refrigerant leaving the EEV to maintain a correct superheat operation.
  • Page 55 All manuals and user guides at all-guides.com Troubleshooting Outdoor Components Exhaust Temperature Sensor 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 >...
  • Page 56 All manuals and user guides at all-guides.com Troubleshooting Outdoor Components Outdoor Temperature Sensor This sensor is a negative coefficient thermistor that will decrease in resistance as the temperature increases. This sensor will monitor the temperature of the outdoor air. The reading will be used by the inverter board to adjust frequency calculations.

  • Page 57: Fault Codes & Status Displays

    All manuals and user guides at all-guides.com Fault Displays Troubleshooting Faults Observe all electrical precautions during service of indoor and outdoor units. During Static service (serving nit without power applied), wait 10 minutes before service units. During dynamic service (servicing while unit is energized), be sure unit is properly grounded. Troubleshooting procedure: 1.
  • Page 58 All manuals and user guides at all-guides.com Fault Displays 9,000 and 12,000 btuh units Display Method of Indoor Unit Display Method of Outdoor Unit Indicator has 3 kinds of display A/C Status Possible Causes Indicator Display (during status and during blinking, ON Malfuntiuon blinking, ON 0.5s and OFF 0.5s) Dual-8...
  • Page 59 All manuals and user guides at all-guides.com Fault Displays 9,000 and 12,000 btuh units Display Method of Indoor Unit Display Method of Outdoor Unit Indicator has 3 kinds of display A/C Status Possible Causes Indicator Display (during status and during blinking, ON Malfuntiuon blinking, ON 0.5s and OFF 0.5s) Dual-8...
  • Page 60 All manuals and user guides at all-guides.com Fault Displays 9,000 and 12,000 btuh units Display Method of Indoor Unit Display Method of Outdoor Unit Indicator has 3 kinds of display A/C Status Possible Causes Indicator Display (during status and during blinking, ON Malfuntiuon blinking, ON 0.5s and OFF 0.5s) Dual-8...
  • Page 61 All manuals and user guides at all-guides.com Fault Displays 9,000 and 12,000 btuh units Display Method of Indoor Unit Display Method of Outdoor Unit Indicator has 3 kinds of display A/C Status Possible Causes Indicator Display (during status and during blinking, ON Malfuntiuon blinking, ON 0.5s and OFF 0.5s) Dual-8...
  • Page 62 All manuals and user guides at all-guides.com Fault Displays 9,000 and 12,000 btuh units Display Method of Indoor Unit Display Method of Outdoor Unit Indicator has 3 kinds of display A/C Status Possible Causes Indicator Display (during status and during blinking, ON Malfuntiuon blinking, ON 0.5s and OFF 0.5s) Dual-8...
  • Page 63 All manuals and user guides at all-guides.com Fault Displays 9,000 and 12,000 btuh units Display Method of Indoor Unit Display Method of Outdoor Unit Indicator has 3 kinds of display A/C Status Possible Causes Indicator Display (during status and during blinking, ON Malfuntiuon blinking, ON 0.5s and OFF 0.5s) Dual-8...
  • Page 64 All manuals and user guides at all-guides.com Fault Displays 9,000 and 12,000 btuh units Display Method of Indoor Unit Display Method of Outdoor Unit Indicator has 3 kinds of display A/C Status Possible Causes Indicator Display (during status and during blinking, ON Malfuntiuon blinking, ON 0.5s and OFF 0.5s) Dual-8...
  • Page 65 All manuals and user guides at all-guides.com Fault Displays 9,000 and 12,000 btuh units Display Method of Indoor Unit Display Method of Outdoor Unit Indicator has 3 kinds of display A/C Status Possible Causes Indicator Display (during status and during blinking, ON Malfuntiuon blinking, ON 0.5s and OFF 0.5s) Dual-8...
  • Page 66 All manuals and user guides at all-guides.com Fault Displays 9,000 and 12,000 btuh units Display Method of Indoor Unit Display Method of Outdoor Unit Indicator has 3 kinds of display A/C Status Possible Causes Indicator Display (during status and during blinking, ON Malfuntiuon blinking, ON 0.5s and OFF 0.5s) Dual-8...
  • Page 67 All manuals and user guides at all-guides.com Fault Displays 9,000 and 12,000 btuh units If malfunction occurs, corresponding code will display and the unit will resume normal until protection or malfunction disappears. Compressor starts (normal) Yellow indicator blinks once Yellow indicator blinks twice Defrosting (normal display of indoor unit) Anti-freezing protection (normal disply of Yellow indicator blinks 3 times...
  • Page 68 All manuals and user guides at all-guides.com Fault Displays 18,000 and 24,000 btuh units Indoor Unit Displaying Method Outdoor Unit Display (LED) Indicator Display (during Indicator has 3 kinds of display status and Malfunction Dual-8 blinking, ON 0.5s and OFF 0.5s during blinking, ON 0.5s and OFF 0.5s A/C Status Malfunctions...
  • Page 69 All manuals and user guides at all-guides.com Fault Displays 18,000 and 24,000 btuh units Indoor Unit Displaying Method Outdoor Unit Display (LED) Indicator Display (during Indicator has 3 kinds of display status and Malfunction Dual-8 blinking, ON 0.5s and OFF 0.5s during blinking, ON 0.5s and OFF 0.5s A/C Status Malfunctions...
  • Page 70 All manuals and user guides at all-guides.com Fault Displays 18,000 and 24,000 btuh units Indoor Unit Displaying Method Outdoor Unit Display (LED) Indicator has 3 kinds of display status Indicator Display (during Malfunction and during blinking, ON 0.5s and Dual-8 blinking, ON 0.5s and OFF 0.5s A/C Status Malfunctions...
  • Page 71 All manuals and user guides at all-guides.com Fault Displays 18,000 and 24,000 btuh units Indoor Unit Displaying Method Outdoor Unit Display (LED) Indicator has 3 kinds of display Indicator Display (during Malfunction status and during blinking, ON 0.5s Dual-8 blinking, ON 0.5s and OFF 0.5s A/C Status Malfunctions Name...
  • Page 72 All manuals and user guides at all-guides.com Fault Displays 18,000 and 24,000 btuh units Indoor Unit Displaying Method Outdoor Unit Display (LED) Indicator has 3 kinds of display status Indicator Display (during Malfunction and during blinking, ON 0.5s and OFF Dual-8 blinking, ON 0.5s and OFF 0.5s A/C Status...
  • Page 73 All manuals and user guides at all-guides.com Fault Displays 18,000 and 24,000 btuh units Indoor Unit Displaying Method Outdoor Unit Display (LED) Indicator has 3 kinds of display Indicator Display (during Malfunction status and during blinking, ON Dual-8 blinking, ON 0.5s and OFF 0.5s A/C Status Malfunctions Name...
  • Page 74 All manuals and user guides at all-guides.com Fault Displays 18,000 and 24,000 btuh units Indoor Unit Displaying Method Outdoor Unit Display (LED) Indicator has 3 kinds of display status Indicator Display (during Malfunction and during blinking, ON 0.5s and OFF Dual-8 blinking, ON 0.5s and OFF 0.5s A/C Status...
  • Page 75 All manuals and user guides at all-guides.com Fault Displays 18,000 and 24,000 btuh units Indoor Unit Displaying Method Outdoor Unit Display (LED) Indicator has 3 kinds of display Indicator Display (during Malfunction status and during blinking, ON 0.5s Dual-8 blinking, ON 0.5s and OFF 0.5s A/C Status Malfunctions Name...
  • Page 76 All manuals and user guides at all-guides.com Fault Displays 18,000 and 24,000 btuh units Indoor Unit Displaying Method Outdoor Unit Display (LED) Indicator has 3 kinds of display status Indicator Display (during Malfunction and during blinking, ON 0.5s and OFF Dual-8 blinking, ON 0.5s and OFF 0.5s A/C Status...
  • Page 77 All manuals and user guides at all-guides.com Fault Displays 18,000 and 24,000 btuh units Indoor Unit Displaying Method Outdoor Unit Display (LED) Indicator has 3 kinds of display Indicator Display (during Malfunction status and during blinking, ON 0.5s Dual-8 blinking, ON 0.5s and OFF 0.5s A/C Status Malfunctions Name...
  • Page 78 All manuals and user guides at all-guides.com Fault Displays 18,000 and 24,000 btuh units Indoor Unit Displaying Method Outdoor Unit Display (LED) Indicator has 3 kinds of display status Indicator Display (during Malfunction and during blinking, ON 0.5s and OFF Dual-8 blinking, ON 0.5s and OFF 0.5s A/C Status...

  • Page 79: Troubleshooting Flow Charts

    All manuals and user guides at all-guides.com Troubleshooting 9,000 & 12,000 Units Indoor Fan does not Operate Is the indoor control board fastened securely and wired correctly? Are the input voltages within 10% of rated value? Energize the unit Proper Voltage between Check power L &...
  • Page 80 All manuals and user guides at all-guides.com Troubleshooting 9,000 & 12,000 Units Temperature Sensor Malfunction Temperature sensor malfunction Start Temperature Sensor Troubleshooting F1 & F2 will relate to indoor sensor faults F4 & F5 will relate to outdoor sensor faults Is the sensor wire plug loose from control board Insert the plug correctly...
  • Page 81 All manuals and user guides at all-guides.com Troubleshooting 9,000 & 12,000 Units Start Failure Malfunction Energize and start the unit Is the stop duration of the compressor longer than 3 minutes. Are the wire connections Reconnect the wires on the compressor according to the wiring connected properly diagram...
  • Page 82 All manuals and user guides at all-guides.com Troubleshooting 9,000 & 12,000 Units Desynchronizing of Compressor after Unit is Started Desynchronizing of compressor 1. Check the resistance of the compressor Status: terminals and connections to the compressor During cooling mode, compressor will stop, 2.
  • Page 83 All manuals and user guides at all-guides.com Troubleshooting 9,000 & 12,000 Units Desynchronizing of Compressor During Operation Desynchronizing of compressor 1. Check the resistance of the compressor Status: terminals and connections to the compressor During cooling mode, compressor will stop, 2.
  • Page 84 All manuals and user guides at all-guides.com Troubleshooting 9,000 & 12,000 Units Overload and Discharge Malfunction Start Is the Overload connections OK Check the resistance between the two ends of the overload protector in ambient temperature. Is the resistance below 1K Is the wiring of the Reconnect according to the electronic expansion valve...
  • Page 85 All manuals and user guides at all-guides.com Troubleshooting 9,000 & 12,000 Units Communication Failure Communication Failure 1. Improper voltages Status: 2. Mis-matched indoor and outdoor units Cooling operation, compressor stops while 3. Improper wiring between indoor and outdoor indoor fans runs. Heating operation, complete units unit stops Communication failure of...
  • Page 86 All manuals and user guides at all-guides.com Troubleshooting 18,000 & 24,000 Units Temperature sensor malfunction Start Temperature Sensor Troubleshooting Is the sensor wire plug loose from the control board? Insert the plug correctly Is problem corrected? Is there a short or open circuit in the wire or sensor? Replace sensor or correct wire problem...
  • Page 87 All manuals and user guides at all-guides.com Troubleshooting 18,000 & 24,000 Units Indoor fan does not operate Possible causes: 1. Fan motor locked 2. The control or feedback terminal of PG not connected properly 3. Damaged motor 4. Main board malfunction Energize the unit Does fan turn freely? Find obstruction...
  • Page 88 All manuals and user guides at all-guides.com Troubleshooting 18,000 & 24,000 Units Jumper Cap Malfunction 1. No jumper cap inserted on board Jumper Cap Malfunction Status: 2. Jumper cap not fully seated Wireless remote will not send command to 3. Jumper cap damaged indoor unit.
  • Page 89 All manuals and user guides at all-guides.com Troubleshooting 18,000 & 24,000 Units Overcurrent Protection Fault & Status Possible Causes Overcurrent Protection 1. Supply voltage is unstable Status: 2. Supply voltage is too low During cooling & dehumidifying, indoor unit 3. Coils are dirty operates while other functions stop;...
  • Page 90 All manuals and user guides at all-guides.com Troubleshooting 18,000 & 24,000 Units Capacity Charging Malfunction Charging Malfunction of Capacitor 1. Improper input voltage Status: 2. Poor connection on reactor During cooling mode, compressor will stop, 3. Reactor damaged indoor fan will run. Heating mode all units 4.
  • Page 91 All manuals and user guides at all-guides.com Troubleshooting 18,000 & 24,000 Units IPM Protection Malfunction (unit will not run) Fault & Status Possible Causes 1. Dirty indoor and outdoor coils IPM Protection Status: 2. Faulty indoor or outdoor fans During cooling mode, compressor will stop, 3.
  • Page 92 All manuals and user guides at all-guides.com Troubleshooting 18,000 & 24,000 Units Compressor Overload, Discharge Protection Malfunction 1. Check the resistance of the compressor terminals and connections to the compressor 2. Check for overcharge of refrigerant 3. Check for correct voltage 4.
  • Page 93 All manuals and user guides at all-guides.com Troubleshooting 18,000 & 24,000 Units Desynchronize Malfunction, continued next page Desynchronizing of compressor 1. Check the resistance of the compressor Status: terminals and connections to the compressor During cooling mode, compressor will stop, 2.
  • Page 94 All manuals and user guides at all-guides.com Troubleshooting 18,000 & 24,000 Units Desynchronize Malfunction, continued Desynchronizing of compressor 1. Check the resistance of the compressor Status: terminals and connections to the compressor During cooling mode, compressor will stop, 2. Check for overcharge of refrigerant indoor fan will run.
  • Page 95 All manuals and user guides at all-guides.com Troubleshooting 18,000 & 24,000 Units Anti-High Temperature, Overload Protection High Discharge Temperature Protection of 1. Is unit running in proper outdoor ambient range Compressor. 2. Faulty outdoor temperature sensor Status: 3. Refrigerant leak Cooling operation, compressor stops while 4.
  • Page 96 All manuals and user guides at all-guides.com Troubleshooting 18,000 & 24,000 Units Unit Will Not Start Ensure proper voltage, should be withing 10% Power voltage low of nameplate Check fuses or circuit Outdoor unit will not start No power breakers Poor electrical connection Check wire connections Controller fuse open...
  • Page 97 All manuals and user guides at all-guides.com Troubleshooting 18,000 & 24,000 Units Startup Failure Energize and start the unit Is the stop duration of the compressor longer than 3 minutes. Are the wire connections Reconnect the wires on the compressor according to the wiring connected properly diagram...
  • Page 98 All manuals and user guides at all-guides.com Troubleshooting 18,000 & 24,000 Units Compressor Overload, Discharge Protection Malfunction Start Is the Overload connections OK Check the resistance between the two ends of the overload protector in ambient temperature. Is the resistance below 1K Is the wiring of the Reconnect according to the...
  • Page 99 All manuals and user guides at all-guides.com Troubleshooting 18,000 & 24,000 Units PFC Malfunction (correction for power factor) PFC (Power Factor Correction) Protection 1. Check for damage to the reactor and PFC Status: capacitor of the outdoor unit During cooling & dehumidifying, indoor unit 2.
  • Page 100 All manuals and user guides at all-guides.com Troubleshooting 18,000 & 24,000 Units Communication Malfunction of Indoor Unit, continued next page for Outdoor Unit Communication Failure 1. Improper voltages Status: 2. Mis-matched indoor and outdoor units Cooling operation, compressor stops while 3.
  • Page 101 All manuals and user guides at all-guides.com Troubleshooting 18,000 & 24,000 Units Communication Malfunction of Outdoor Unit E6 Error Code continued Communication failure outdoor units De-energize, check the wire connections of indoor and outdoor units and power to outdoor unit Did this correct the Are all connections correct? Correct connections...
  • Page 102 All manuals and user guides at all-guides.com General Troubleshooting Miscellaneous Malfunctions Fan capacitor has open circuit or Replace capacitor damaged Motor overload protector faulty Replace motor The fan does not run when set to run Motor winding open Replace motor Repair connection, wire per Incorrect wiring or bad connection schematic...
  • Page 103 All manuals and user guides at all-guides.com General Troubleshooting Miscellaneous Malfunctions, cont. Incorrect refrigerant charge Charge per instructions Faulty metering device Check refrigerant flow The compressor is hot, tripping overload Faulty valve in compressor Replace compressor Faulty protector Replace protector The toque of the swing motor not Replace swing motor sufficient...
  • Page 104 All manuals and user guides at all-guides.com General Troubleshooting Miscellaneous Malfunctions, cont. Drainage pipe blocked or broken Repair or replace pipe Water leakage Damaged or insufficient pipe Re-wrap pipe insulation insulation Indoor fan loose or hitting sides Tighten and adjust Foreign object in indoor unit Remove object Abnormal sound...
  • Page 105 All manuals and user guides at all-guides.com General Troubleshooting Compressor Running Hot Improper installation, bad unit Check for proper installation per ventilation, not level, direct sunlight, manual etc. Ambient temperature too high Check for operational limits Clean indoor coils, filters and Filters or coils dirty outdoor coils Indoor or outdoor fans not...

  • Page 106: Disassembly Of Indoor Units

    All manuals and user guides at all-guides.com Disassembly of RIO Indoor Unit 12,000 btuh Other models may vary slightly Warning - Wait 10 minutes after power is disconnected before starting disassembly. Hold On/Off button for 5 seconds to force a cooling operation for approximately 15 minutes. 1.
  • Page 107 All manuals and user guides at all-guides.com Disassembly of RIO Indoor Unit 12,000 btuh Other models may vary slightly Warning - Wait 10 minutes after power is disconnected before starting disassembly. 3. Open front panel Step 1. Slide axial bushing and remove bushing. Bend the horizontal louver slightly and remove.
  • Page 108 All manuals and user guides at all-guides.com Disassembly of RIO Indoor Unit 12,000 btuh Other models may vary slightly Warning - Wait 10 minutes after power is disconnected before starting disassembly. Hold On/Off button for 5 seconds to force a cooling operation for approximately 15 minutes. 4.
  • Page 109 All manuals and user guides at all-guides.com Disassembly of RIO Indoor Unit 12,000 btuh Other models may vary slightly Warning - Wait 10 minutes after power is disconnected before starting disassembly. 6. Open electrical box Step 1. Disconnect the cable clamp Step 2.
  • Page 110 All manuals and user guides at all-guides.com Disassembly of RIO Indoor Unit 12,000 btuh Other models may vary slightly Warning - Wait 10 minutes after power is disconnected before starting disassembly. Hold On/Off button for 5 seconds to force a cooling operation for approximately 15 minutes. 7.
  • Page 111 All manuals and user guides at all-guides.com Disassembly of RIO Indoor Unit 12,000 btuh Other models may vary slightly Warning - Wait 10 minutes after power is disconnected before starting disassembly. 8. Remove the pressure plate of the motor Step 1. Remove the screws of motor plate, then remove the motor plate.

  • Page 112: Disassembly Of 9,000 & 12,000 Btuh Outdoor Systems

    All manuals and user guides at all-guides.com Disassembly of Outdoor Unit 9,000 & 12,000 btuh Warning - Wait 10 minutes after power is disconnected before starting disassembly. Warning Be sure to wait a minimum of 10 minutes after turning off all power supplies before disassembly 1.
  • Page 113 All manuals and user guides at all-guides.com Disassembly of Outdoor Unit 9,000 & 12,000 btuh Warning - Wait 10 minutes after power is disconnected before starting disassembly. 3. Remove grille and front panel 1. Loosen screws and remove the discharge grille 2.
  • Page 114 All manuals and user guides at all-guides.com Disassembly of Outdoor Unit 9,000 & 12,000 btuh Warning - Wait 10 minutes after power is disconnected before starting disassembly. 5. Remove fan motor and axial blade 1. Remove the screws of the fan and then remove the axial blade along with motor assembly.
  • Page 115 All manuals and user guides at all-guides.com Disassembly of Outdoor Unit 9,000 & 12,000 btuh Warning - Wait 10 minutes after power is disconnected before starting disassembly. 7. Remove the partition plate 1. Loosen the two screws 2. The partition plate has a hook on the lowers side. Lift and pull the partition plate to remove.
  • Page 116 All manuals and user guides at all-guides.com Disassembly of Outdoor Unit 9,000 & 12,000 btuh Warning - Wait 10 minutes after power is disconnected before starting disassembly. 8. Remove compressor 1. Remove 4-way valve and tubinge by un-soldering. Properly remove all refrigerant. 2.
  • Page 117 All manuals and user guides at all-guides.com Disassembly of Outdoor Unit 9,000 & 12,000 btuh Warning - Wait 10 minutes after power is disconnected before starting disassembly. 8. Remove compressor, cont. 3. Remove screws holding gas valve assembly, unsolder the joint between the gas valve and condensor piping, then remove gas valve.

  • Page 118: Disassembly Of 18,000 And 24,000 Btuh Outdoor Systems

    All manuals and user guides at all-guides.com Disassembly of Outdoor Unit 18,000 and 24,000 btuh Warning - Wait 10 minutes after power is disconnected before starting disassembly. Warning Be sure to wait a minimum of 10 minutes after turning off all power supplies before disassembly 1.
  • Page 119 All manuals and user guides at all-guides.com Disassembly of Outdoor Unit 18,000 and 24,000 btuh Warning - Wait 10 minutes after power is disconnected before starting disassembly. 2. Remove grille and front panel 1. Loosen screws and remove the discharge grille 2.
  • Page 120 All manuals and user guides at all-guides.com Disassembly of Outdoor Unit 18,000 and 24,000 btuh Warning - Wait 10 minutes after power is disconnected before starting disassembly. 4. Remove the axial flow fan 1. Remove the nuts holding the fan blade, then remove the blade.
  • Page 121 All manuals and user guides at all-guides.com Disassembly of Outdoor Unit 18,000 and 24,000 btuh Warning - Wait 10 minutes after power is disconnected before starting disassembly. 6. Remove fireproof electric box and sound proof sponge 1. Remove the screws holding fireproof electric box, then remove box.
  • Page 122 All manuals and user guides at all-guides.com Disassembly of Outdoor Unit 18,000 and 24,000 btuh Warning - Wait 10 minutes after power is disconnected before starting disassembly. 8. Remove the 4 way valve assembly 1. Remove the screws holding the 4-way valve coil. Properly remove refrigerant, protect valve from heat damage and remove valve.

  • Page 123: Appendix 1 - 3 Temperature Sensor Resistance Tables

    All manuals and user guides at all-guides.com Disassembly of Outdoor Unit 18,000 and 24,000 btuh Warning - Wait 10 minutes after power is disconnected before starting disassembly. 10.. Remove condenser sub-assembly 1. Remove the screws connecting the support (condenser) and condenser assembly, then remove the support.
  • Page 124 All manuals and user guides at all-guides.com Appendix 1: Resistance Table of Ambient Temperature Sensor for Indoor and Outdoor Units (15K) Temp Temp Resistance Temp Temp Resistance Temp Temp Resistance (ºC) (ºF) (kΩ) (ºC) (ºF) (kΩ) (ºC) (ºF) (kΩ) -2.2 138.1 91.4 10.63...
  • Page 125 All manuals and user guides at all-guides.com Appendix 1: Resistance Table of Ambient Temperature Sensor for Indoor and Outdoor Units (15K) Temp Temp Resistance Temp Temp Resistance Temp Temp Resistance (ºC) (ºF) (kΩ) (ºC) (ºF) (kΩ) (ºC) (ºF) (kΩ) 50.0 29.9 143.6 3.454...
  • Page 126 All manuals and user guides at all-guides.com Appendix 2: Resistance Table of Outdoor and Indoor Tube Temperature Sensors (20K) Temp Temp Resistance Temp Temp Resistance Temp Temp Resistance (ºC) (ºF) (kΩ) (ºC) (ºF) (kΩ) (ºC) (ºF) (kΩ) -2.2 181.4 91.4 14.18 185.0 2.125...
  • Page 127 All manuals and user guides at all-guides.com Appendix 2: Resistance Table of Outdoor and Indoor Tube Temperature Sensors (20K) Temp Temp Resistance Temp Temp Resistance Temp Temp Resistance (ºC) (ºF) (kΩ) (ºC) (ºF) (kΩ) (ºC) (ºF) (kΩ) 50.0 39.87 143.6 4.605 237.2 0.904...
  • Page 128 All manuals and user guides at all-guides.com Appendix 3: Resistance Table of Outdoor Discharge Temperature Sensor (50K) Temp Temp Resistance Temp Temp Resistance Temp Temp Resistance (ºC) (ºF) (kΩ) (ºC) (ºF) (kΩ) (ºC) (ºF) (kΩ) -20.2 853.5 73.4 53.74 167.0 7.224 -18.4 799.8...
  • Page 129 All manuals and user guides at all-guides.com Appendix 3: Resistance Table of Outdoor Discharge Temperature Sensor (50K) Temp Temp Resistance Temp Temp Resistance Temp Temp Resistance (ºC) (ºF) (kΩ) (ºC) (ºF) (kΩ) (ºC) (ºF) (kΩ) 41.0 125.1 134.6 13.58 228.2 2.568 42.8 119.1...
  • Page 130 All manuals and user guides at all-guides.com Gree Electric Appliances, Inc. (C) 2014 Cat. No. DFS-RIO-HP-2SM...

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