Question about LG LMAN090HNS/LMU240HE Air Conditioner

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I have LG LMU240HE multi type air conditioner. It is about 5 years old. It will not stay on. When power on, runs about 30 seconds and power indicator blinks and Sleep mode indicator comes on and completely shuts down. I have two units and both are acting the same. I have cleaned well, checked power supply, used remote to cancel sleep mode, reset remote numerous times and still not running. Please help.

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  • 2 Answers

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Posted on Jan 02, 2017

SOURCE: my brand new lg air

your AC have a thermister problem
if u replace the thermister your AC will be OK.

Posted on Jun 08, 2008

  • 400 Answers

SOURCE: LG LS-Q09BUL INVERTER AIR CONDITIONER

This is possibly either a complete outdoor pc board error or an E-Prom error on the indoor pc board. You can try shutting down supply power completely for a minute and then switch on. These units also have a delay timer system which does not like to be switched on, off repeatedly in a short period. Please also check for reset button on the outdoor pc board. Hope this helps.

Posted on May 14, 2009

  • 86 Answers

SOURCE: Air conditioner wont work after winter off

Make sure the filter is clean. When you remove the filter you should be able to see the evaporator coil. Make sure it's not clogged with dirt. If they are clean is the fan and compressor are running. If they are not working and with the cost of repair if no warranty. It's time for a new window unit.

Posted on Apr 19, 2010

  • 9 Answers

SOURCE: Air conditioner shuts down constantly, need to

Sorry but you are just going to have to keep emptying it. These types or air conditioners are also use as de-humidifiers and unless you can place it somewhere where you can connect a drain hose it is going to require many trips to dump the holding tank of the condensation.

Posted on Jul 12, 2010

SOURCE: there is power to my

Turn off the power from the circuit breaker and wait three minutes before powering up. This should reset the system. If it still does not run then you will need to replace the compressor motor

Posted on Oct 14, 2010

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