Sharp AE-Z35PR, Service Manual

Page: 40 / 64

3-17
AY-ZP35PR
Indoor and
outdoor units
do not oper-
ate. 7-time Timer (Orange) 7 0 Outdoor unit
AC Current AC over current
error (1) Check the outdoor
unit air outlet for
blockage.
(1) Ensure unob-
structed air flow
from the outdoor
unit air outlet.
Operation (Green)
Plasmacluster
(Blue)
(2) Check the outdoor
unit fan for proper
rotation.
(2) Check the outdoor
unit fan motor.
Timer (Orange) 1 AC current error
when OFF (1) IPM continuity check (1) Replace the out-
door IPM PWB
Operation (Green)
Plasmacluster
(Blue)
Timer (Orange) 2 AC maximum
current error (1) Check the outdoor
unit air outlet for
blockage.
(1) Ensure unob-
structed air flow
from the outdoor
unit air outlet.
Operation (Green)
Plasmacluster
(Blue)
(2) Check the outdoor
unit fan for proper
rotation.
(2) Check the outdoor
unit fan motor.
Timer (Orange) 3 AC current defi-
ciency error (1) Check if there is an
open-circuit in the
secondary winding
of the current trans-
former of the outdoor
unit control PWB.
(1) Replace the out-
door unit control
PWB assembly.
Operation (Green)
Plasmacluster
(Blue) (2) Check if the refriger-
ant volume is abnor-
mally low.
(2) Charge the speci-
fied amount of
refrigerant.
(3) Check if the refriger-
ant flows properly.
(3) Correct refrigerant
clogs. (Stop valve,
pipe, expansion
valve)
Indoor and
outdoor units
do not oper-
ate. 8-time Timer (Orange) 8 0 Abnormal
wire check Abnormal wire
check error (1) Check the expansion
valve. (unit A - C)
(1) Replace the out-
door control board
assembly.
Operation (Green)
Plasmacluster
(Blue) (2) Are four expansion
valves connected by
mistake
(2) Reattach
(3) Check the wiring
between units.
(3) Check the wiring
between units.
Problem
symptom
Outdoor
unit indi-
cation
(LED1)
Indoor unit Malfunc-
tion No.
Content of diagnosis Check point Action
Lamp Main Sub Main Sub