What is fault Code i on Air Conditioner MRA35. The unit does not come on

E4 Error Code
The E4 display is not actually an error code, but indicates that the air conditioner has entered defrost mode. This occurs when the unit detects ice on the evaporator which located behind the front grille. Once defrosted, the air conditioner will resume normal operation.
https://www.lg.com/us/support/help-library/error-codes-room-air-conditioner-CT10000014-1432829295501

https://www.qualityac.com.au/blog/reset-air-conditioning-error-codes/

Full list of Gree Air Conditioner Mini Split Units Fault Codes. When error codes appear on the Gree air conditioner indoor display, this tells the user there is an issue with the Gree AC unit. The error code displayed will inform you of the issue or problem that is occurring with the air conditioner. Knowing what the error code means and its definition will help you to understand and troubleshoot the exact Gree air conditioner part that needs to be fixed, cleaned, repaired, or replaced. You can then clean, fix, or replace the Gree part yourself and save money. See below for all error codes that can occur on Gree Mini Split AC's.
Gree Mini Split Air Conditioner Error Codes - How To Fix
Gree Viero AC Mini Split PDF Owners and Troubleshooting Manual
GREE DUCTLESS AIR CONDITIONING & HEATING SYSTEM INSTALLATION MANUAL

Gree Mini Split Air Conditioner Part Names and Locations
INDOOR AND OUTDOOR UNIT
The Gree Air Conditioning Vireo System has onboard error code diagnostics. The outdoor unit will provide status indicators and the indoor wall unit and remote control will display error codes. The following is a summary of the codes with explanations...
GREE AC DIAGNOSTIC ERROR CODES
Gree Vireo Mini Split Air Conditioner Error Code F0
Refrigerant Leakage Protection
1) Refrigerant leak(s).
2) Indoor coil temperature sensor not calibrated.
3) Refrigerant flow is restricted (ex. valve, exv, debris)
Outdoor Unit Red Light Indicator - 9 flashes and 1 sec Off
Gree Vireo Mini Split Air Conditioner Error Code E1
System High Pressure
1) Over charged with refrigerant.
2) Blocked or dirty outdoor coil.
3) Extreme outdoor ambient conditions
Gree Vireo Mini Split Air Conditioner Error Code E2
Indoor Anti-Freeze Protection
1) Low return airflow.
2) Indoor fan speed is too low.
3) Indoor coil is blocked or dirty.
Outdoor Unit Yellow Light Indicator - 3 flashes and 1 sec Off

Gree Vireo Mini Split Air Conditioner Error Code E4
Compressor High Discharge Temperature Protection
Please refer to the malfunction analysis (discharge temperature, overload) in service manual.
Outdoor Unit Yellow Light Indicator - 7 flashes and 1 sec Off
Gree Vireo Mini Split Air Conditioner Error Code E5
Overcurrent Protection
1) Supply voltage is unstable.
2) Supply voltage is too low and system load is too high.
3) Indoor coil is blocked or dirty.
Outdoor Unit Yellow Light Indicator - 5 flashes and 1 sec Off
Gree Vireo Mini Split Air Conditioner Error Code E6
Communication Malfunction
1) Communication cable is wired incorrectly between indoor and outdoor units.
2) Indoor or Outdoor control board malfunction.
Outdoor Unit Yellow Light Indicator - Continuous On
Gree Vireo Mini Split Air Conditioner Error Code E8
High Temperature Resistant Protection
1) Incorrect refrigerant charge level.
2) Refrigerant metering device malfunction.
3) Compressor malfunction.
Outdoor Unit Yellow Light Indicator - 6 flashes and 1 sec Off
Gree Vireo Mini Split Air Conditioner Error Code EE
EEPROM Memory Malfunction
Control board malfunction.
Outdoor Unit Yellow Light Indicator - 11 flashes and 1 sec Off
Gree Vireo Mini Split Air Conditioner Error Code C5
System Configuration Malfunction
1) No jumper cap inserted on the control board.
2) Incorrect or damaged jumper cap on control board.
3) Indoor and outdoor units are not compatible.
Gree Vireo Mini Split Air Conditioner Error Code Fo
Pump Down or Gathering Refrigerant Status
Optional Service Mode
Outdoor Unit Yellow Light Indicator - 17 flashes and 1 sec Off

NOTE: All of the Gree Air Conditioner Model Numbers below are applicable for the error codes on this page...
Gree AC Vireo Models: VIR09HP115V1A, VIR12HP115V1A, VIR09HP230V1A, VIR12HP230V1A, VIR18HP230V1A, VIR24HP230V1A, VIR30HP230V1A, and VIR36HP230V1A.
Gree Mini Split Air Conditioner Error Code Charts
Gree Mini Split AC Remote Control Button Names
Gree Mini Split AC Remote Control Icons Display Screen

Gree Mini Split Air Conditioner Air Filter Cleaning Procedure
Gree Viero AC Mini Split PDF Owners and Troubleshooting Manual
GREE DUCTLESS AIR CONDITIONING & HEATING SYSTEM INSTALLATION MANUAL
Need help with error codes on your Gree AC? Please leave a question below and we will be happy to help.

PDF]SERVICE Manual - Quietside

https://www.quietside.com/archives/.../Service%20ACC1800C.pdf

When error occurs in air conditioner, error code is displayed on indoor unit .... Display priority order at overlapping error : E1?E4?E5?P0?P0?P5?P6?t1? ...

Midea air conditioner error codes

airmaster.net/midea-air-conditioner-error-codes/

Midea air conditioner error codes. Indoor unit error code explanation: R series: ... E1, Indoor / outdoor units communication protection. E2, Zero-crossing signal error ... E4, Outdoor unit temp. sensor or connector of temp. sensor is defective.

[PDF]Download the Fault Error Code Booklet - Samsung

This is what you error code means.
E1 = Room temperature sensor fault
Haier Air Conditioner Fault Codes


AC Repair Tamarac

CH-06 REFERS Indoor unit coil sensor fault. Disconnect from PCB measure resistance. 10 kOhm at 10C and 4 kOhm at 30C. if not replace sensor. THANKS.

Hi,

Here is a tip that gives a further explanation of that E-1 code. The causes of the E-1 code can be varied depending or the brand of your air conditioner.

Read through this tip... it will help you understand what is happening with your window air conditioning unit and give you some things to try to help you get your problem resolved.

E-1 Code on Window Air Conditioning Units

heatman101

Hi, the indoor chiller unit blower section will have a sheet glued to a panel on the unit that will tell you where and what the code 302 means on the unit. Then you will be able to make the repairs you kneed.
Shastalaker7
PS the numbers above show that this is a 3 ton unit, 38CKC036. The error code more than likely will be 3 flashes from the board followed by 02 flashes. I may be wrong on that , so correct me if I am.

Error "FL" is coming It is not going by applying suggesstion in your booklet kindly enlighten

www.yx2.fi/LG/wall_and_art_cool_error_codes_2007.pdf

Please read this article, I think it will help you solve your problem

ch5 error code, means that there is a
communication error (serial comunication) between the outdoor and the indoor unit.
Only for LG-airconditioners.