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Lg dual inverter ac error code ch 21.
Every fault code for lg air conditioners explained.
If there is a fault on any lg universal unit a two digit number will appear on the remote controllers led display if the unit does not have a remote controller the fault will be displayed using the led s on the front of the indoor unit.
Ch 43 high pressure sensor failure master 431 slave1 432 slave2 433 slave3 434 ch 44 outdoor unit ambient sensor faulty master 441 slave1 442 slave2 443 slave3 444 ch 45 condenser pipe sensor defective master 451 slave1 452 slave2 453 slave3 454 ch 46 compressor suction temperature thermistor defective ch 47 constant1 compressor outlet pipe temperature sensor.
Learn how to use update maintain and troubleshoot your lg devices and appliances.
A full list of lg air conditioning fault codes by keyword.
Lg air conditioning multi f dx fault codes sheet macedo november 2007 8 fault code 07 on multi split systems the first unit switched on is the cool heat master the master tells the condensing unit what to do.
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Central controller disconnection error no response from air conditioner.
Indoor temperature sensor open or closed circuit.
Check compressor windings all equal 1 to 4 ohms check to earth 50 mohm minimum check run current.
Inverter compressor run current high.
We don t only describe why the code has appeared but also explain how to resolve the problem.
I have a lg dual inverter model nt187sk3 the unit have an alarmed code ch 38 what is the cause of this alarm code several times i checked the unit i need your opinion about this matter thanks.
Heat sink temperature sensor open or closed circuit.
Outdoor temperature sensor open or closed circuit.
