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Frigidaire AC model LRA187MT2. Compressor runs nonstop - does not matter what the temperature setting is. When put into fan mode displays H1 instead of the temperature. Filter is clean.

Posted by Gerry Flynn on

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jack morton

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You probably have a circuit board failure. On the board there are micro-relays that control power to the compressor. And in that relay the switch that is normally open is stuck closed.

Posted on Jun 29, 2015

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My unit blows out cool air for maybe 3mins. Then warm air

Normal ACs (non inverter) work in the following way
  • The AC compressor runs continuously till set temperature is reached in the room
  • The compressor then switches off, but the blower fan in the wall mounter unit keeps running. Durint this time the AC fan blows air out at Room temperature (which feels warmer)
  • When temperature of room rises then compressor starts running again. During theis period the air coming out from the inner uny is cooled by the condenser coils
  • And the process is repeated.... as long as you keep AC running
Ac works this way throught the operation period.
Now if you feel that your AC keeps switching off and on very frequently check the following
  • Your AC may be over powered for room *for example a 1.5 ton AC installed in a scenario where 1 ton is enough)
  • If there is voltage fluctuation in your area then the compressor may keep shutting don on large voltage swings
    • Solution: Get a Stabilizer
  • You have set the temperature setting too high. Max temp suggested for ACs is 25 degree Celsius, any higher will mean the compressor shuts down often. Remember every compressor shutdown and startup draws a high starting current
    • Set AC temperatures between 22 and 24 degrees Celsius
  • The thermostat/ Temperature sensor is faulty
    • Get unit inspected by Authorized technician
  • There is dust buildup on the outer unit / compressor unit. The dust buildup may cause overheating by preventing efficient heat exchange, This may lead to overheating of compressor and it shuts down to, prevent damage to itself
    • Get unit serviced by Authorized technician
  • The fan motor of the outer unit is not working properly
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Remember to get the AC serviced at least thrice a year to ensure smooth operation
Cool Thoughts... Cool Life !!!
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Hey Nikkie, I appreciate your post!
I see that your Frigidaire refrigerator is beeping and displaying the error code of "H1". An "H1" error code means that this is a high temperature within the refrigerator. Since the door was left open all night the refrigerator is registering there is a high temperature. I would suggest keeping the door closed and allowing the refrigerator to get back to the correct temperature. This may take anywhere from 24 to 36 hours for the temperature to stabilize. Hopefully this information is helpful to you. -Matt
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Good Afternoon Friend,

I understand you want to know how to turn off the power save mode for your Frigidaire air conditioner, model# FFRE12L3Q1. Your appliance will run in energy saver(econ) mode when used for the first time. In this mode, the fan will continue to run for 1 minute after the compressor shuts off. The fan then cycles on for 20 seconds at 10 minute intervals until the room temperature is above the set temperature, at which time the compressor turns back on. You will be able to turn the energy save mode off by selecting your temperature as well as your fan speed. I ask that you please follow up with a comment on the post, at your convenience, to advise if further troubleshooting is needed or if your appliances status has changed successfully. Hope this is helpful.

-Best Regards-
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