Midea Air Conditioning Fault Code List

1. Split Wall-mounted Air Conditioner

1, 25, 5F, F1 series split machine

Work light timer light defrost light indication content

〇〇× Current protection (PRI-5MI PRI-SEC)

☆ ☆ × Fan speed runaway

☆ 〇× Zero-crossing detection error

☆ ☆ × The main chip and computer cannot communicate

☆ 〇× Indoor evaporator temperature sensor is open or short circuit

☆ × × Indoor room temperature sensor is open circuit or short circuit

〇☆ × Thermal fuse disconnection protection (FUSED)

☆ 〇× Indoor evaporator high temperature protection or low temperature protection

☆ × × Dehumidification mode indoor temperature is too low protection

× 〇〇 Power on Error in writing EEPROM parameters during operation

〇〇〇 Error in reading EEPROM parameters when power on

〇× ☆ Error in writing EEPROM parameters during running

〇 (on) ☆ (flashing) × (off)

2. Qingxingxing 26, C series split machine

Running light, timing light, automatic ventilation light, continuous ventilation light, defrost light indication content

1HZ just powered on but not turned on

5HZ 5HZ 5HZ The motor is out of control, no feedback Signal

5HZ Indoor sensor detection port is abnormal

5HZ Evaporator sensor detection port is abnormal

5HZ 5HZ 5HZ 5HZ Thermal fuse is blown

0.1HZ 0.1HZ 0.1HZ 0.1HZ. 0.1HZ No zero-crossing signal

, Qingjingxing 26, C1 series split unit

Code indication content

P0 4 consecutive current protection

P1 Indoor fan speed out of control

P2 Indoor board and switch board can not communicate within 2 minutes

P Indoor evaporator temperature sensor open circuit or short circuit

P4 Indoor room temperature sensor open circuit or short circuit

P5 Indoor fan temperature fuse disconnected

P6 Zero-cross detection fault

P7 Model selection error

4. Starlight type (26A, 2A, 6A, 4A) series split machine

Starlight type (2, 26, 2I1) series, 22Y series split machine

Work light timing light defrosting light indication content and LED status

☆ × ☆ Four times current protection 5HZ

☆ × × Fan speed runaway 5HZ

☆ ☆ ☆ Zero-crossing detection error 0.1HZ

☆ ☆ 〇The main chip and the computer cannot communicate at 5HZ

× × ☆ Indoor evaporator temperature sensor open circuit or short circuit 5HZ

× ☆ × Indoor room temperature sensor open circuit or short circuit 5HZ

☆ ☆ × Thermal fuse disconnection protection 5HZ

〇〇〇Error reading EEPROM parameters when power on

(When judging the fault, only use the three lights listed above to judge the status of other lights)

5. Star color type (50A, 60A, 70A) series split machine

Type indication content LED status remarks

Protect the current protection running light, timer light, defrost light (only air supply light) flashing at 5Hz at the same time within 10 minutes after the compressor is turned on for four consecutive times. p> The abnormal timing light of the faulty room temperature sensor detection port flashes at 5Hz and automatically recovers after the fault is cleared

J v V m l ? J The abnormal operation light of the fault evaporator sensor detection port flashes at 5Hz

The faulty condenser sensor detection port is abnormal Frost light flashes at 5Hz

MalfunctionEEPROM communication error (reserved) Running light and timing light flash at 5Hz

6. I-type series split machine KF(R)-2GWIY

Working light, automatic light, timing light, defrost light indication content

〇☆ 〇× Current protection

☆ ☆ ☆ × Fan speed out of control

☆ ☆ 〇× Zero-crossing detection error|

☆ 〇☆ × Main chip and computer cannot communicate

☆ 〇〇× Indoor evaporator Temperature sensor open circuit or short circuit

☆ 〇× × Indoor room temperature sensor open circuit or short circuit

〇☆ ☆ × Thermal fuse disconnection protection

☆ × 〇× Indoor evaporator high temperature protection or low temperature protection

☆ × × × Protection against low indoor temperature in dehumidification mode

☆ 〇〇〇Error writing E2PROM parameters when power on

〇〇〇〇Error reading E2PROM parameters when powering on

〇× × ☆ Read and write during operation E2PROM parameter error

7. H-type series split machine

KF(R)-25GWHY

Fresh light timing light working light indication content

☆ ☆ ☆ Current protection

☆ ☆ 〇Fan speed Out of control

☆ 〇☆ Zero-crossing detection error

〇〇☆ Indoor evaporator temperature sensor open circuit or short circuit

☆ 〇〇 Indoor room temperature sensor open circuit or short circuit

8. Three-horsepower series large split machine:

KF(R)-60GWY

KF(R)-70GWY

KF(R)-70GWSY

Type Indication Content LED Status Remarks

Protection Occurs Four Times in One Hour Compressor Overcurrent protection running light, timer light, defrost light flashes at 5HZ Protection (phase loss, phase sequence and exhaust temperature protection) All lights flash at 5HZ

The fault room temperature sensor detection port is abnormal and the timing light flashes at 5HZ Automatic recovery after the fault is cleared

The fault evaporator sensor detection port is abnormal and the automatic light is 5HZ Flashing

Abnormal defrost light of fault condenser sensor detection port flashes at 5HZ

Fault temperature fuse blown running light and timing light flashes at 5HZ

9. Split machine after the main chip is unified:

KF( R)-2GWY KF(R)-262GW(D)Y KF(R)-252WY

KF(R)-64GWY KF(R)-25GWEY KF(R)-28GWEY

KF(R)-5GWY KF(R)-26GWCY KF(R)-GWCY

Run light setting Hourly light, automatic light, defrost light indication content

☆ × × × The indoor fan speed is out of control for more than 1 minute

(with a ventilation light, the ventilation light also flashes)

× ☆ × × The room temperature sensor is open or short circuit

× × ☆ × Evaporator sensor open circuit or short circuit

☆ ☆ × × Thermal fuse blown (with ventilation light,

ventilation light also flashes)

☆ ☆ ☆ ☆ No fault Zero signal (all lights flash at 0.1HZ)

10. Midea-Toshiba series split machine:

KF (C)-6 (4, 45) GWY KFR-2 (6) GWY

KFR- 4(45) GWY

Indoor code situation table:

LED status indication content

Running light 1HZ flashes at first power on and normal standby

Running light flashes at 5HZ immediately after power-on The room temperature sensor or evaporator sensor is open circuit Or short circuit

After power on, the running light flashes at 5HZ for one minute, and the speed of the indoor fan is out of control

The running light and timing light flash at 5HZ The thermal fuse is open

Running light, timing light, defrost light (or only air supply light) flashes at 5HZ

1. The compressor connection is not well connected, the compressor overcurrent protector is open or the electric control is broken

2. The power supply voltage is too low

． Electric control parts are faulty or leaking fluorine

Use the remote control to judge: (This judgment method is applicable to the original gray remote control)

After pressing the rightmost button of the remote control battery for a second, the remote control displays 00, use The temperature

adjustment button can change the displayed number and transmit it to the host through the remote control (as long as the electric control is normal, it can be received and displayed through thelight is displayed), for items with no problem, only the timing light flashes, otherwise both the timing light and the running light flash.

Level diagnostic function

Mainboard

0C The temperature sensor head at room temperature continues to run abnormally

0d The temperature sensor head of the evaporator continues to run abnormally

11 The indoor fan is abnormal and the whole machine stops

12 The main board other The problem continues to run

Detection code 01 Wiring or overheat protector has function block failure

Detection code 04 Wiring error or faulty machine shutdown

Phenomenon 1 The thermal protection is blown

2 The indoor fan is not running normally

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Label group:[sensor] [fuse] [Midea Air Conditioner] [Evaporator]