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Luxpro psd111 thermostat shows snowflake (sometimes blinks), outdoor fan works, but no cool air comes out inside- no air flow at all. Is it the thermostat or an a/c unit malfunction?

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If the outdoor unit is running the indoor fan should definitely be running. Turn power off to indoor unit. Put red green and yellow wires together behind the tstat with a wire nut. That is power (red), indoor fan (green), and compressor (yellow.) Turn power back on. This is bypassing the tstat and you should have indoor fan and outside running as well. If yes the problem is in the tstat, if no indoor fan the problem is in the unit. Good Luck!! Let me know!!

Posted on Apr 28, 2017

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Luxpro PSD111 thermostat reading 78 when set to cool at 72. Snowflake blinking and not cooling. Please advise. Thank you.


Usually blinking means you are in a time delay. Obviously not for three hours but... Turn fan to on position and verify your indoor fan is working. If so check outdoor unit and see if it's running. If no indoor fan turn breaker off, and inside the tstat put the red and green wires together and turn breaker back on. If indoor fan runs you have a bad tstat. Good luck!!

Mar 22, 2017 | Heating & Cooling

1 Answer

Air conditioning not working. Have White-Rodgers thermostat 1F79111, I think. Replaced batteries. Now have flashing signal like an asterisk. What does it mean?


Blinking snowflake means it's on time delay for cooling to come on (usually 5 minute time delay to prevent compressor short cycling). Solid snowflake means cooling is on

Aug 03, 2016 | White-Rodgers (Protech) White Rodgers...

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What is snowflake symbol


shows that the setting [temperature] is set to come on when a temperature inside gets below 2 degrees or zero

Apr 10, 2015 | Lux PSD111 Digital Non-Programmable Single...

1 Answer

How do I change my luxpro psd111 thermostat to display temperature back to farenheit from Celsius?


On the Luxpro PSD111, Farenheit or Celcius are selected using the Jumper Switch J2 on the rear of the unit's circuit board:
Open = Celcius
Closed = Farenheit

Jan 20, 2014 | Cars & Trucks

1 Answer

Honeywell Thermostat RTH110B


It probably has stopped outdoor unit and the blinking is to be done when working anamoni.afto heating and not to bring in cold air flashes the LIGHT as long heated air into the condenser.

Nov 01, 2011 | Honeywell Electronic Programmable...

1 Answer

I have a digital Honeywell thermostat that has a blinking snowflake. When the thermostat is on auto mode it does not turn on. When I turn the thermostat to fan I can feel and hear the air blowing out of...


If the thermostat has a blinking snowflake then it is in time delay mode which sometime can take between 5 to 7 minutes before it will turn the AC and Fan On......Then it will go to a solid snowflake.
When you turned it to fan On it starts the Fan right away..... After the snow flake has went to solid check to see if the fan is running and then look outside to see if the Fan Blade is turning on the AC..... The fan blade comes on the same time as the compressor does. Then with the fan running hold your hand above the air stream above the AC and if you can noticeablely feel warm to hot air comeing out the Top then the compressor is running also. If the outside unit is not running I would check to make sure the Main Breakers are turned ON.... After the AC has ran for a few minutes feel the copper lines that go into the house the smaller line should feel warm to hot and the bigger lines with insulation on it should feel cool to cold and sweating with beads of moisture on it..... That is a quick test to see if the unit is working properly.....If you have a Thermentor and can Check the Temperature of the Return Air and the Supply Air .. You should have about 20 Degree F Between the Supply and Return........ 75* Return - 55* Supply would Equal 20* TD Across the Coil......
That is about all you can do to check on your own....... If the compressor is not coming on or the lines are not the temperature difference then you will need to get professional help for your Air Conditioning System..... Goood Luck Hope this Helps.........

May 14, 2011 | Heating & Cooling

1 Answer

My outdoor AC unit is not coming on. Air is blowing out of my vents inside but the snowflake symbol on my thermostat is blinking and the air isn't cold. The fan on the unit isn't even running. Any...


check power to outside unit, check if it has a fused disconnect, if you have power and no blown fuses it could be a blown capicator that starts the fan and compressor...............

May 09, 2011 | Heating & Cooling

2 Answers

I have a blinking snowflake icon on my air conditioner, my air will not work. My heater will work fine but the air will not come on


When the snowflake is blinking the thermostat in in a delay mode designed to protect your compressor. If it does not stop blinking in 15min the stat is bad otherwise something is wrong with the AC

Sep 26, 2009 | Honeywell Electronic Programmable...

1 Answer

Snowflake blinking and air conditioner won't turn on.


If it is blinking it is in a 5 minute time delay.
It should settle to a steady snowflake after 5 minutes and come on normally.

May 21, 2009 | Heating & Cooling

1 Answer

Re: 1998 Mitsubishi Diamante Air Conditioner problem


check the refrigerant it might have 2 be recharged

Aug 18, 2008 | 2002 Mitsubishi Galant

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