Koppel Air Conditioner Error Codes

Koppel is a Philippine-based company that started back in 1904 as a distributor of railway equipment. They commonly dealt with sugarcane cars, cargo cars, bulk carriers, and tankers for the Philippine National Railways. It was not until 1923 when the company joined hands with American Conglomerate that they started manufacturing and distributing American standard air conditioners.

However, it was not until 1957 that the company started to manufacture and market split and packaged air conditioning equipment. Making their move in the golden era they easily became a leader in the industry. In the years to come, the company went through a great deal, but Koppel managed to keep its focus on commercial and residential air conditioning systems.

Koppel might be a high-ranking company, but from time to time customers have complained about system errors. Fortunately, most of these errors can be fixed on your own. To help you out we have listed down some of the most common error codes for Koppel Air Conditioners. Start by noting down the error code, and match it using the list below. Once you have the error code you can easily work your way to the fix. Knowing what exactly the issue is, you are more likely to save time and money when looking for a quick and affordable fix.

Koppel Super Inverter AC Error Codes;

Error Codes	Problem
E0	Indoor unit EEPROM parameter error
E1	Indoor / outdoor units communication error
E2	Zero-crossing signal error
E3	Indoor fan speed has been out of control
E4	Open circuit or short circuit of indoor room temperature T1
E5	Open circuit or short circuit of evaporator coil temperature T2 sensor
EC	Refrigerant Leakage Detection
F1	Open circuit or short circuit of outdoor ambient T4 temperature sensor
F2	Open circuit or short circuit of condenser coil temperature T3 sensor
F3	Open circuit or short circuit of compressor discharge T5 temperature sensor
F4	Outdoor unit EEPROM parameter error
F5	Outdoor fan speed has been out of control
P0	IPM malfuntion of IGBT over-strong current protection
P1	Over voltage or over low voltage protection
P2	High temperature protection of compressor top diagnosis and solution
P4	Inverter compressor drive sensor

EEPROM parameter error diagnosis and solution E0/F4:

 

Error Signals On The Display

In case of error, the display on the indoor unit shown the following error codes

Error Code: E 1

RUN lamp: flashes once

Description of the trouble: The fault of indoor temperature sensor

Error Code: E 2

RUN lamp: flashes twice

Description of the trouble: The fault of indoor pipe temperature sensor

Error Code: E 6

RUN lamp: flashes 6 times

Description of the trouble: Malfunction of indoor fan motor.

Koppel AC Troubleshooting

Malfunction: The appliance does not operate 

Possible Causes:

1. Power failure/plug pulled out
2. Damaged indoor/outdoor unit fan motor
3. Faulty compressor thermomagnetic circuit breaker
4. Faulty protective device or fuses.
5. Loose connections or plug pulled out
6. It sometimes stops operating to protect the appliance.
7. Voltage higher or lower than the voltage range
8. Active TIMER-ON function
9. Damaged electronic control board

Malfunction:  Strange odour

Possible Causes: Air filter dirty

Malfunction:  Noise of running water

Possible Causes: Back flow of liquid in the refrigerant circulation

Malfunction:  A fine mist comes from the air outlet

Possible Causes: This occurs when the air in the room becomes very cold, for example in the COOLING or DEHUMIDIFYING/DRY modes

Malfunction:  A strange noise can be heard

Possible Causes: This noise is made by the expansion or contraction of the front panel due to variations in temperature and does not indicate a problem.

Malfunction:  Insufficient airflow, either hot or cold

Possible Causes:

• Inappropriate temperature setting..
• Air inlet or outlet of indoor or outdoor unit has been blocked.
• Air filter is blocked.
• Fan speed set at minimum.
• Other sources of heat in the room.
• No refrigerant

Malfunction:  The appliance does not respond to commands

Possible Causes:

• Remote control is not near enough to indoor unit.
• Battery in Remote controller may have been exhausted..
• Obstacles between remote control and signal receiver in indoor unit.

Malfunction:  The display is off

Possible Causes:

• Active LED function
• Power failure

The air conditioner does not work at all.

1. Is the power plug inserted into the socket properly?
2. Is the timer set for the “TIMER-ON” mode?
3. Is the ambient temperature lower than 16°C?
4. Is there a power failure or is the fuse blown?

There is no sufficient cooling

1. Is the room temperature set properly?
2. Is the air filter screen clean (not blocked)?
3. Are the doors or windows opened?
4. Is the room directly exposed to sunlight?
5. Are there any heating sources inside the room?
6. Are there many people inside the room?

The following phenomena occurring during the operation do not mean faults of the machine. You may use the air conditioner with peace of mind.

Phenomena: The air conditioner cannot be started for operation after it is turned off.

Diagnosis: Start the operation after 3 minutes. This is to protect the air conditioner. The microchip protection device for 3 minutes’ delay performs its function. When the machine is powered for the first time. this function does not work.

Phenomena: Frog is blown out during the cooling operation.

Diagnosis: When the indoor temperature and humidity is high, such phenomena might occur. When the indoor temperature and humidity drops, the frog will disappear.

Phenomena: There is odd smell of the delivered air.

Diagnosis: It might be the smell of cigarette smoke or other things inside the air conditioner.

Phenomena: There is “squeezing” sound.

Diagnosis: It might be caused by the cycling of the refrigerant inside the air conditioner.

Phenomena: There is “patting” sound.

Diagnosis: It might be caused by the heat expansion of contraction of the plastic parts.

Phenomena: There is moisture at the air outlet grids.

Diagnosis: If the air conditioner operates in high humidity for long time, moisture may be condensed at the grids and become water drops.

1-Digital Displayer: in usual operation, ın fan mode, ıt indicates room temperature; ın cool or dry mode, ıt indicates setting temperature; ın timer operation, when pressing the timer button, it indicates timer time, if the time has not been be adjusted after 5 seconds, it indicates temprature again; lf room temp sensor failure, ıt indicates temperature at 25‘c (77°f).

2-Remote Controller Signal Receiver

3-Timer Button: if unit is running, press this button will enter switch-off mode; if unit is off (in standby mode), press this button will enter switch-on mode.

4-Speed Button: press this button to set air rate you want: high, med, low.

5-Mode Button: press this button,it advances the operation mode as follows: cool -dry-fan(heat for cooling and heating model)—auto

6-Tempitime Button: in usual, press this button to adjust setting temperature within a range of 16‘c(61°f) to 32’s (90“f).

7-Swing  Button: pressing this button will adjust the air swinging direction or the air delivery in fixed direction.

Koppel Window Type AC Manual PDF

Koppel Super Inverter AC Manual PDF