Service manual

3-16
AY-ZP35PR
Indoor unit
operates.
Outdoor unit
does not
operate tem-
porarily.
3-time
Timer (Orange) 3 0 Dry opera-
tion
Temporary stop
due to dehumidi-
fying operation
(Temporary stop for cycle
protection)
-
Operation (Green)
Plasmacluster
(Blue)
Indoor and
outdoor units
do not oper-
ate.
5-time
Timer (Orange) 5 0 Outdoor unit
thermistor
open-circuit
Heat exchanger
thermistor open
circuit error
(1) Check connector of
the outdoor unit ther-
mistor for secure
installation.
(1) Correct the instal-
lation.
Operation (Green)
Plasmacluster
(Blue)
Timer (Orange) 1 Outdoor temper-
ature thermistor
open circuit error
(2) Measure resistance
of outdoor ther-
mistors.
(2) Replace the out-
door unit ther-
mistor assembly.
Operation (Green)
Plasmacluster
(Blue)
Timer (Orange) 2 Suction ther-
mistor open cir-
cuit error
(3) Check the lead wires
of thermistors on the
outdoor unit control
PWB for open-cir-
cuit.
(3) Replace the out-
door unit ther-
mistor assembly.
Operation (Green)
Plasmacluster
(Blue)
Timer (Orange) 3 2-way valve ther-
mistor open cir-
cuit error.
(4) No abnormality
found in above
inspections (1)
through (3).
(4) Replace the out-
door unit control
PWB assembly.
Operation (Green)
Plasmacluster
(Blue)
Timer (Orange) 4 Discharge ther-
mistor open cir-
cuit error
Operation (Green)
Plasmacluster
(Blue)
Timer (Orange) 5 Heat sink ther-
mistor open cir-
cuit error
Operation (Green)
Plasmacluster
(Blue)
Indoor and
outdoor units
do not oper-
ate.
6-time
Timer (Orange) 6 0 Outdoor unit
DC Current
DC over current
error
Go to “DC Over Current Error (6-0 error)”.
Operation (Green)
Plasmacluster
(Blue)
Timer (Orange) 1 IPM pin level
error
(1) Check the IPM is
attached correctly to
the outdoor unit IPM
PWB.
(1) Replace the out-
door unit IPM PWB
assembly.
Operation (Green)
Plasmacluster
(Blue)
Problem
symptom
Outdoor
unit indi-
cation
(LED1)
Indoor unit Malfunc-
tion No.
Content of diagnosis Check point Action
Lamp Main Sub Main Sub