Generic · Mini-split
Snowflake / freeze icon blinking Anti-freeze protection active
What this code means
The unit senses its coil is at risk of icing and is running a defrost cycle or throttling output.
Most likely causes
- Dirty air filter restricting airflow across the indoor coil
- Low refrigerant charge
- Thermostat set too low for outdoor conditions in heat mode
What to try first
Remove and rinse the washable air filters inside the indoor head — this is the single most common cause.
Good news: this one is often fixable without a service call. If it persists after the steps above, have it looked at.
Find the part on Amazon →FAQ
What does Generic error code Snowflake / freeze icon blinking mean?
Anti-freeze protection active. The unit senses its coil is at risk of icing and is running a defrost cycle or throttling output.
Can I fix Generic code Snowflake / freeze icon blinking myself?
Often, yes. Remove and rinse the washable air filters inside the indoor head — this is the single most common cause.
What causes Generic code Snowflake / freeze icon blinking?
The most common causes are: dirty air filter restricting airflow across the indoor coil; low refrigerant charge; thermostat set too low for outdoor conditions in heat mode.
Other Generic mini-split codes
All Generic mini-split error codes →
Other mini-split brands: Mitsubishi · Daikin · LG · Fujitsu · Gree · Carrier · Panasonic
This information may contain errors or not apply to your exact model — always double-check it against your appliance's own manual before acting. If there's any chance of a gas, fire, electrical, carbon monoxide, or other safety hazard, stop and call a licensed professional or the appropriate agency (e.g. your gas utility) instead of relying on this page alone.