Скачать или смотреть Fix Thermostat Blinking SNOWFLAKE Icon & Cooling NOT Working (AC White Rodgers Honeywell Lux Goodman

A flashing snowflake symbol on any HVAC thermostat almost always means the system is in “cool mode” but is on a delay — it’s not broken, it’s just waiting.
Here’s what’s going on:
Why it’s blinking
Many AC thermostats have a built-in compressor protection delay (usually 3–5 minutes) after the AC turns off, to prevent damage from short-cycling.
While in that delay, the snowflake icon will blink and the system won’t run.
Some thermostats also blink the snowflake when the temperature set point is lower than the room temp but it’s still waiting for that delay to expire.
How to “fix” it
Wait 3–5 minutes to see if the snow flake stops blinking and the AC starts.
Check that it’s set to Cool mode and the set temperature is lower than the current room temperature.
Check the fan setting — usually set to “Auto” so it only runs when cooling starts.
Check the outdoor unit — if the snowflake keeps blinking for longer than 10 minutes, the issue could be:
Tripped breaker to the outside unit.
Thermostat wiring issue.
Safety shutoff triggered (like low refrigerant or clogged drain pan sensor).
Power cycle the thermostat — turn it off for 30 seconds, then back on.
If still blinking and not cooling after ~10 minutes, it’s time to:
Check the breaker for both the air handler and condenser.
Check that the outdoor fan is running.
Call an HVAC tech if nothing obvious is wrong — could be a capacitor, contactor, or low refrigerant.
If you tell me your thermostat brand and model, I can give you the exact meaning of the blinking snowflake for that model and the specific steps.
A lot of thermostats — both programmable and smart — use a blinking snowflake to indicate compressor delay or cool mode standby.
Here’s a list of major brands and models known to use that symbol:
Common Smart/Wi-Fi Thermostats
Honeywell Home / Resideo (T3, T4, T5, T6, RTH series, VisionPRO)
Emerson Sensi
Google Nest (flashing snowflake appears in app/diagnostics)
ecobee (snowflake icon in app, not always blinking)
Programmable / Digital Thermostats
LuxPro
White-Rodgers (Classic 70/80 series, Sensi non-Wi-Fi models)
Robertshaw
Pro1
Braeburn
OEM / HVAC Brand-Labeled Thermostats
Carrier / Bryant / Payne branded thermostats
Lennox ComfortSense models
Trane / American Standard branded thermostats
Rheem / Ruud branded thermostats
Goodman / Amana ComfortNet thermostats
Older Digital Models
Hunter thermostats
Lux 500/600 series
If your thermostat shows a blinking snowflake, it’s almost always a compressor anti-short-cycle timer, not a fault — regardless of brand.
#thermostats #hvacrepair

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