Malfunction Of System, Refrigerant System Address Undefined - Daikin VRV K Manual

SI-95.BOOK Page 112 Friday, March 31, 2000 10:59 AM
Troubleshooting

2.36 Malfunction of System, Refrigerant System Address Undefined

U U U U H H H H
Remote Controller
Display
I Improper connection of transmission wiring between indoor-outdoor unit or outdoor-outdoor unit
Supposed Causes
I Defect of indoor unit PC board
I Defect of outdoor unit PC board (A1P)
Troubleshooting
112
Is electricity
being introduce for
YES
the first time after installation
or after an indoor or outdoor
unit PC board has
been replaced?
NO
Is
indoor - outdoor and
NO
outdoor - outdoor unit
transmission wiring
normal?
YES
Hold the RESET button on the
outdoor unit PC board for 5
seconds
NO
Does a malfunction occur?
YES
Does
NO
a "UH" malfunction occur for
all indoor units in
the system?
YES
Does
a malfunction
occur even after 12
NO
minutes elapses from the time
Normal
when electricity is introduced
to indoor and outdoor
units?
YES
After fixing incorrect wiring, push
and hold the RESET button on the
outdoor unit PC board for 5
seconds.
∗ The unit will not run for up to 12
Normal
Replace indoor unit PC board.
Replace outdoor unit PC board
(A1P).
Troubleshooting Inverter K Series
Si-95
minutes.
(VF062)