Installation Guide

ManualsBrandsGREE ManualsDuctless Mini SplitsNeo 9,000 BTU 3/4 Ton Ductless Mini Split Air Conditioner and Heat Pump Kit - 208-230V/60Hz

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Troubleshooting

This unit has onboard diagnostics. Error codes will appear on the LED display on the front panel of the

indoor unit in place of the temperature display. The table below explains the error codes for both units.

START-UP

Step 11

Installing Photocatalytic Filter (optional)

1. Lift front panel and remove air filter. (Fig. a).

2. Attach photocatalytic filter onto air filter. (Fig. b).

3. Install air filter as shown; close panel. (Fig. c).

Step 12

Start-up and Checkout

Test Operation

Perform test operation after completing gas leak and electrical safety check.

1. Turn on electrical disconnect to outdoor unit.

2. Push the “ON/OFF” button on Remote Control to begin testing.

NOTE: A protection feature prevents the system from being activated for approx. 3 minutes.

3. Push MODE button, select COOLING, HEATING, FAN mode to confirm all functions.

System Checks

1. Conceal refrigerant pipes where possible. 2. Make sure drain hose slopes downward

along entire length. 3. Ensure all refrigerant pipes and connections are properly insulated.

4. Fasten pipes to outside wall, when possible. 5. Seal and weatherproof wall hole which

the interconnecting wires and refrigerant pipes pass through.

Indoor Unit

1. Do all Remote Control buttons function properly? 2. Do the display panel lights work properly?

3. Does the swing louver function properly? 4. Does the drain work?

Outdoor Unit

1. Push the mode button to COOL and adjust the room setting to 61° F deg. Wait up to 3 minutes

from compressor time guard. Does compressor and outdoor fan turn on in cooling mode?

2. Push the mode button to HEAT and adjust the room setting to 85°F deg. Wait up to 3 minutes

for compressor time guard. Does compressor and outdoor fan turn on in heat mode?

START-UP AND TROUBLESHOOTING

Explain Following Items To Customer With The Aid Of The Owner’s Manual:

1. How to turn system on and off; selecting C OOLING, HEATING and other operating modes;

setting a desired temperature; setting the timer to automatically start and stop system

operation; and all other features of the Remote Control and display panel.

2. How to remove and clean the air filter.

3. How to set air with the swing louvers.

4. Explain care and maintenance.

5. Present the Owner’s Manual and installation instructions to customer.

DIAGNOSTIC CODES

Fig. a

Air Filter

Photocatalytic

Filter

Fig. b

Fig. c

Equipment Fault

Indoor Configuration Jumper

Indoor/Outdoor Mismatch

High Current Protection

Communication Error

Indoor Air Temp. Thermistor

Indoor Coil Temp. Thermistor

Outdoor Air Temp. Thermistor

Outdoor Coil Temp. Thermistor

Compressor Discharge Temp. Thermistor

Compressor Overload Protection

IPM Module Protection

Indoor Fan Malfunction

Compressor Synchronism

4-Way Valve Malfunction

Defrost Mode

Possible Causes

Missing Configuration Jumper on Indoor Control Board

Indoor and Outdoor Units Do Not Match (Model or Capacity)

Power Supply is not Stable and Voltage Range is too Large

Mis-wired or Communication Failure

Bad Connection, or Indoor Air Sensor Failure

Bad Connection, or Indoor Coil Sensor Failure

Bad Connection, or Outdoor Ambient Sensor Failure

Bad Connection, or Outdoor Coil Sensor Failure

Bad Connection, or Discharge Sensor Failure

Low Refrigerant Charge, Blocked Capillary, or Compressor Motor Failure

IPM Module Temperature Too High, High Ambient, Low Voltage, or Bad Connections

Indoor Fan Stopped or Running too Slow

High Pressure, Low Voltage, or Bad Connections

Bad Connection, Solenoid Failure, or Valve Malfunction. ( Heat Pumps Only)

No failure, system is defrosting indoor coil.

Error Codes

TWD-0813-032 Neo install REV:Layout 1 9/27/13 12:15 PM Page 23

High Pressure Protection

Too much refrigetant or High Ambient conditions or low airflow.