11
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Troubleshooting
Installer and user reference guide
39
FXHA32~100AVEB
VRV system air conditioner
4P673749-1 – 2022.01
11 Troubleshooting
If one of the following malfunctions occur, take the measures shown below and
contact your dealer.
WARNING
Stop operation and shut OFF the power if anything unusual occurs (burning smells
etc.).
Leaving the unit running under such circumstances may cause breakage, electrical
shock or fire. Contact your dealer.
The system MUST be repaired by a qualified service person.
Malfunction
Measure
If a safety device such as a fuse, a circuit breaker
or a residual current device frequently actuates
or the ON/OFF switch does NOT function
properly.
Turn OFF all main power supply
switches to the unit.
If water leaks from the unit.
Stop operation.
The operation switch does NOT function
properly.
Turn OFF the power supply.
If the user interface displays .
Notify your installer and report
the error code. To display an
error code see the reference
guide of the user interface.
If the system does NOT operate properly except for the above mentioned cases
and none of the above mentioned malfunctions is evident, investigate the system
in accordance with the following procedures.
Malfunction
Measure
If the system does not
operate at all.
▪
Check if there is no power failure. Wait until
power is restored. If power failure occurs during
operation, the system automatically restarts
immediately after power is restored.
▪
Check if no fuse has blown or breaker is activated.
Change the fuse or reset the breaker if necessary.
