Auto Back Up For Inverter Compressor; Setting Optional Modes - LG Multi V5 Service Manual

Auto Back Up for Inverter Compressor

The Auto Back Up function allows the system to operate if an inverter compressor fails, automatically backing up the compressor (defective
compressor operation is halted). No need to set a code for this feature—this function operates automatically using system logic. Errors can
be displayed every six (6) hours.
Error Nos. 21, 22, 26, 27 may occur.
Auto Back Up operation Initiates.
Indoor units / outdoor units display error for ten (10) minutes.
Error clears from indoor unit controller,
indoor unit operation possible.
Example: Slave1 Outdoor Unit Inverter Compressor 1 fails (Error No. 21 displays)
• Request service immediately if error occurs.
• Auto Back Up Function is set up to one (1) inverter compressor.
• When Auto Back Up Function begins, the error code displays for ten (10) minutes every six (6) hours.
• Error will display continuously at the corresponding outdoor unit.
Outdoor unit is operating.
Inverter compressor failure
Time > Six (6) Hours
Yes
Error Compressor
Unit (1: Master, 2: Slave1, 3: Slave 2)
Error number
Due to our policy of continuous product innovation, some specifications may change without notification.
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OTHER CONTROLS

Setting Optional Modes

No
(Repeats)
87