ASU24RLF Fujitsu Air Conditioning Unit: Outdoor unit error codes E221 and E242, how do I fix this ? I need a literal translation everything I've read isn't making sense, a step by step process

If the operation light is blinking, it means there is an error with the unit. The number of blinks can indicate what the error is.
Here are some common error codes for Toshiba air conditioning units:

• Blinking once: Indoor unit room temperature sensor error
• Blinking twice: Indoor unit coil outlet temperature sensor error
• Blinking three times: Indoor unit coil inlet temperature sensor error
• Blinking four times: Outdoor unit discharge temperature sensor error
• Blinking five times: Outdoor unit suction temperature sensor error
• Blinking six times: Indoor unit EEPROM error
• Blinking seven times: Outdoor unit EEPROM error
• Blinking eight times: Indoor unit remote control error

If you can determine the number of blinks, you can refer to the user manual to see what the error code means and what steps you can take to fix it. If you don't have the manual, you may be able to find it online or contact Toshiba customer support for assistance.

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.

Could be low discharge temp or high discharge temp. The first thing you should do is measure discharge temp of air when you have it running. You should have a 20 degree difference between room temp and supply air temp. If you do not, then have flare nuts connections checked. Most likely a small leak in connections from install.That is the first step. If low, leak gets fixed and a new charge weight in per name plate factory charge

'Serial communication error' meaning the outdoor unit isn't talking to the indoor unit or vice versa. It usually means a faulty outdoor controller but you will need a tech to diagnose.

Try cutting power to the indoor and outdoor units for a couple of minutes. Restore power and see if the error returns. The A1 error for this line of units indicates high compressor discharge temperature, which translates to overheating outdoor unit.

If this error code remains after a hard power reset, it's time to pick up the phone. Either you have a refrigerant leak which has resulted in a loss of freon, or a blockage in the refrigerant plumbing that is backing up pressure in the system. Both conditions will require a major repair by an authorized service tech to get your heat pump up and running again.

Please mark my answer as helpful.

It's showing an error code for the outdoor unit no communication from the outdoor circuit board.

Here is a link to the error codes.
http://www.fullyairconditioned.com.au/images/uploaded/files/fujitsu%20fault%20code%2
0split%20system.pdf


Hope you find an answer there.

The reason you are getting this code is because all units must be hooked up electrically to the condensing unit. The copper doesn't have to be connected to each evap unit for one to run but they all need to be hooked up electrically to meet the minimum btu requirement for the condenser to run. Hope this helps

Error c0de-3.Return air thermistor short circuit.
This sensor when it's defective, will not command for compressor for working.
Replace it.(Room air sensor). Helpful?

See this document for P8 code on Mitsubishi Mr Slim MXZ30TN... It is likely you can get the fix just from following the diagnosis steps 1-7. http://www.digelair.net/pdfs/TECHLIT/MITSUBISHI/MrSlim_P-SERIES_Troubleshooting_TIPS.pdf