Hisense mini split error code 13
Compressor discharge temperature too high.
- TypeProtection
- SystemCompressor / inverter
- Can I fix it?Homeowner checks, then maybe a tech
What 13 means on a Hisense
The refrigerant leaving the compressor got hotter than the safe limit and the compressor stopped. Hisense lists low refrigerant as a primary cause.
On this platform, 13 is a protection: the system stopped or throttled itself to prevent damage; many clear on their own once conditions return to normal.
Common causes
- Low refrigerant charge.
- A failed discharge temperature sensor (see 2).
- A blocked outdoor coil or failed fan.
- A partly closed service valve.
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.
- Look at the outdoor unit: clear leaves, cottonwood fluff, snow or ice from the coil and make sure the fan can spin freely and nothing is stacked against the cabinet.
- Confirm the service valves are fully open.
- Cool down with power off for 30 minutes and retry.
- 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
Recurring 13 with a clean coil needs a charge check.
Which Hisense units show 13
This page applies to Hisense Hisense inverter single-zone and Hisense multi-zone units. Hisense's own documentation lists 13 as "Compressor discharge temperature too high", the same definition used across the Hisense 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 Hisense shows this code
Hisense inverter splits store the fault as a number. When the compressor has stopped on a fault, point the remote at the unit and press the SLEEP button 10 times within 10 seconds: the indoor display then shows the code (a second stored fault shows after four more presses). The Sleep, Timer and Running lamps also blink a pattern that matches the code. Newer models show the number on the display without the button sequence. Codes 1 to 21 are outdoor-unit faults and protections; 33 to 41 are indoor-unit faults. 0 means no fault is stored.
Other Hisense codes
Same part of the system as 13:
13 on other brands
The same characters do not always mean the same thing. Check the brand on your unit.
- Haier 13 Compressor discharge temperature sensor fault (open or short circuit)
Questions people ask
Can I reset a Hisense 13 code myself?
Yes. Turn the system off at the breaker for five minutes, then restart it. If 13 comes back, the fault is real and needs the checks above.
Is it safe to keep running a Hisense showing 13?
Not repeatedly. A protection code means the unit stopped itself to prevent damage, and resetting it over and over can turn a cheap repair into a compressor failure. Reset once, check the basics, and stop if it returns.
Do I need a technician for Hisense 13?
Work through the checks below first; they resolve most cases. If they do not, the repair itself may need a technician. Recurring 13 with a clean coil needs a charge check.
Sources
- Hisense split-type air conditioner service manual, section 7-1 Error Code Table (North America inverter models)
Updated September 2026. Codes and definitions vary by model year. If your manual disagrees with this page, your manual wins. Send a correction.