Arctic King mini split error code EL 0C
Refrigerant leak detected (low charge). Also shown as EL0C, ELOC.
- TypeFault
- SystemRefrigerant circuit
- Can I fix it?Homeowner checks, then maybe a tech
- Applies toindoor unit display (four-character codes)
What EL 0C means on a Arctic King
While cooling, the coil did not get cold enough relative to the room, so the board concluded the refrigerant has leaked out. On a new DIY installation this is nearly always a flare joint that did not seal or a service valve that was never opened. The unit stops to protect the compressor.
On this platform, EL 0C is a fault: something has failed or is disconnected and needs diagnosis.
Common causes
- A leaking flare joint (under- or over-torqued, or a damaged flare face).
- Service valves not fully opened.
- A quick-connect coupling not fully seated.
- A real leak in the coil or piping on an older unit.
- A false trigger from a badly dirty filter or coil, or a T2 sensor reading high.
How to fix it yourself
Work through the checks below first; they resolve most cases. If they do not, the repair itself may need a technician.
- Reset the system: switch the breaker (or the outdoor disconnect) off, wait a full five minutes so the boards fully discharge, then switch it back on and restart from the remote.
- Open both outdoor service valves fully (counterclockwise until they stop).
- Pull the front panel and check the filters and the indoor coil. Dirty filters and a matted coil restrict airflow, and airflow problems trigger a surprising number of protection codes.
- Soap-test every flare joint with the unit running; a stream of fine bubbles is a leak. Re-torque to spec rather than cranking harder.
- Anything inside the refrigerant circuit (sensors are fine, but valves, compressors and leaks are not) needs EPA-certified refrigerant handling. That is a technician job.
Switch off power at the breaker before opening either unit. Capacitors in the outdoor unit hold a charge for several minutes after power is cut.
When to call a technician
If you cannot find or seal the leak, a technician must recover, repair, evacuate and recharge by weight.
Which Arctic King units show EL 0C
This page applies to Arctic King Arctic King single-zone and Arctic King multi-zone units on the indoor unit display (four-character codes). Arctic King's own documentation lists EL 0C as "Refrigerant leak detected (low charge)", the same definition used across the Midea platform (four-character codes) it is built on. If your unit shows a code with a different shape (for example a four-character code, or a plain number), it is from a different table; use the lookup with your exact code.
Where Arctic King shows this code
indoor unit display (four-character codes): The display shows a two-letter prefix and a two-character suffix, either together (EH60) or alternating (EH, then 60). Write both parts down; the suffix is what identifies the fault. EH and EL are indoor-side faults, EC is an outdoor-side fault, and PC is an outdoor protection: the unit stopped itself to prevent damage.
Other Arctic King codes
Same part of the system as EL 0C:
EL 0C on other brands
The same characters do not always mean the same thing. Check the brand on your unit.
- Pioneer EL 0C Refrigerant leak detected (low charge)
Questions people ask
Can I reset a Arctic King EL 0C code myself?
Yes. Turn the system off at the breaker for five minutes, then restart it. If EL 0C comes back, the fault is real and needs the checks above.
Is it safe to keep running a Arctic King showing EL 0C?
The unit will usually refuse to run, or run with reduced output, until the fault is cleared. Repeated resets do not fix anything and can mask a problem that is getting worse.
Do I need a technician for Arctic King EL 0C?
Work through the checks below first; they resolve most cases. If they do not, the repair itself may need a technician. If you cannot find or seal the leak, a technician must recover, repair, evacuate and recharge by weight.
Sources
- Arctic King mini split owner's manual (error code table)
- Midea residential split service manuals
Updated September 2026. Codes and definitions vary by model year. If your manual disagrees with this page, your manual wins. Send a correction.