Midea Error Code LED2 green 4 flashes: Refrigerant sensor expired or faulty (Furnace)
Midea error code LED2 green 4 flashes on a furnace means: Refrigerant sensor expired or faulty. It is also called Midea diagnostic code LED2 green 4 flashes.
Homeowner? What Midea code LED2 green 4 flashes means for you
Call a technician Your furnace is reporting: Refrigerant sensor expired or faulty. The furnace has locked out or cannot run properly. One reset is fine; if the code comes back, it needs a licensed technician to find the cause.
Safe things you can check yourself
- Check the thermostat: right mode (Heat or Cool), set a few degrees past room temperature, and fresh batteries if it uses them.
- Make sure the unit has power: its on/off switch (often looks like a light switch near the unit) is ON and the breaker in the electrical panel is not tripped.
- Make sure the furnace front door or panel is closed properly; many furnaces will not run with the door switch open.
- Look at the air filter. If it is grey and clogged, replace it; a blocked filter causes many shutdowns.
- Outside, make sure the intake and exhaust pipes or vent cap are not blocked by snow, ice, leaves or a nest.
- Check that the gas valve next to the furnace is open (handle in line with the pipe). Do not force it.
- Try one reset: turn the power off for 30 seconds, then back on. If the code comes back, stop resetting and call a technician.
Call (647) 657-2977Book a service call
Licensed technicians serving Vaughan, Toronto and the GTA.
What does Midea error code LED2 green 4 flashes mean?
The refrigerant sensor has reached end of life or is faulty. The Y signal is turned off and cooling stops.
Applies to: Midea BGH96M 96% AFUE two-stage gas furnaces (060B3A, 080B3A, 080C4A, 100C5A, 100D5A, 120D5A) with A2L refrigerant leak sensor on CN30 (fan drive board LED2)
Common causes of Midea code LED2 green 4 flashes
- Sensor end of service life
- Sensor failure
Midea models that use code LED2 green 4 flashes
BGH96M060B3ABGH96M080B3ABGH96M080C4ABGH96M100C5ABGH96M100D5ABGH96M120D5A
Other Midea Furnace codes
All Midea Furnace error codes →
Midea code LED2 green 4 flashes: homeowner questions
What does Midea code LED2 green 4 flashes mean?
Refrigerant sensor expired or faulty. The refrigerant sensor has reached end of life or is faulty. The Y signal is turned off and cooling stops.
Is it safe to keep using my furnace with code LED2 green 4 flashes?
It depends on the cause. The furnace has locked out or cannot run properly. One reset is fine; if the code comes back, it needs a licensed technician to find the cause.
Can I reset Midea code LED2 green 4 flashes myself?
You can try one reset (power off for 30 seconds, then on). If Midea code LED2 green 4 flashes comes back, the cause is still there and a licensed technician should check it.
Who can fix Midea code LED2 green 4 flashes near me?
Aurora Star Tech Inc. repairs Midea furnaces in Vaughan, Toronto and across the GTA. Call (647) 657-2977 or book a service call online.
Homeowner help: Furnace Not Turning On: What to Check · Furnace Blinking Light: What the Flash Codes Mean
Troubleshooting guides
- Blowing cold air All brands · Furnace
- No heat All brands · Furnace
- Short cycling All brands · Furnace
- No light and no fan - furnace does not start Midea · Furnace
- Resetting a locked-out furnace Midea · Furnace
Source: Midea 96% AFUE Gas Furnace (A2L) Troubleshooting Guide, Appendix A3 Requirements for refrigerant leakage sensors, LED2 table, p.27. Written in our own words as a summary; always check the original manual.
General guidance for qualified technicians. The manufacturer's installation and service manual and local codes always take priority. Aurora Star Tech is not affiliated with, endorsed by or sponsored by any equipment manufacturer; brand and model names are used only to identify equipment and belong to their owners.