Daikin R48NUY2S - Page 381

Si20-701_B Troubleshooting by Remote Controller
374
Troubleshooting
Has
the check
operation
performed on
outdoor unit
PCB?
NO
YES
Press and hold
BS4 on the
outdoor unit main
PCB for 5
seconds or more,
or turn ON the
local setting
mode 2-3 to
conduct a check
operation.
Performs the
check operation
again and
completes the
check operation.
When a leakage
detection
function is
needed, normal
operation of
charging
refrigerant must
be completed.
And then, start
once again and
complete a check
operation.
Caution
Be sure to turn off the power switch before
connecting or disconnecting connectors, or parts
may be damaged.