Sharp AE-Z35PR, Service Manual

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3-2
AY-ZP35PR
Function Operation Self-diagnosis result
display
Description Detection period Reset condition Indoor
unit error
display
Indoor unit Outdoor
unit
10 AC overcurrent
error in compres-
sor OFF status
Indoor and outdoor units stop
if outdoor AC current exceeds
about 3 A while compressor is in
non-operation status. When compressor is in
non-operation Replacement of defec-
tive parts such as IPM Yes ۼ 1 Yes Yes
11 AC maximum cur-
rent error
Compressor stops if coutdoor
AC current exceeds 17 A. When compressor is in
operation Operation OFF or ON Yes ۼ 2 Yes Yes
12 AC current defi-
ciency error
Compressor stops if operating
frequency is 50 Hz or higher and
outdoor AC current is about 2.0
A or lower. When compressor is in
operation Operation OFF or ON Yes ۼ 2 Yes Yes
13 T h e r m i s t o r i n -
stallation error or
4-way valve error
Compressor stops if high and
low values of temperatures
detected by outdoor unit heat
exchanger thermistor (TH2) and
2-way valve thermistor (TH5) do
not match operating cycle. 3 minutes after com-
pressor startup Operation OFF or ON Yes ۼ 2 Yes Yes
14 Compressor high
temperature error
Compressor stops if compressor
chamber thermistor (TH1) ex-
ceeds about 114°C, or if there is
short-circuit in TH1. When in operation Operation OFF or ON Yes ۼ 2 Yes Yes
15 Outdoor unit heat
exchanger ther-
mistor short-cir-
cuit error
Compressor stops if there is
short-circuit in outdoor unit heat
exchanger thermistor (TH2). At compressor startup Operation OFF or ON Yes
ۼ
2 Yes Yes
16 Outdoor unit out-
side air temper-
ature thermistor
short-circuit error
Compressor stops if there is
short-circuit in outdoor unit out-
side air temperature thermistor
(TH3). At compressor startup Operation OFF or ON Yes
ۼ
2 Yes Yes
17 Outdoor unit suc-
t i o n t h e r m i s t o r
short-circuit error
Compressor stops if there is
short-circuit in outdoor unit suc-
tion thermistor (TH4). At compressor startup Operation OFF or ON Yes
ۼ
2 Yes Yes
18 O u t d o o r u n i t
2-way valve ther-
mistor short-cir-
cuit error
Compressor stops if there is
short-circuit in outdoor unit 2-way
valve thermistor (TH5). At compressor startup Operation OFF or ON Yes
ۼ
2 Yes Yes
19 Outdoor unit heat
exchanger ther-
mistor open-cir-
cuit error
Compressor stops if there is
open-circuit in outdoor unit heat
exchanger thermistor (TH2). At compressor startup Operation OFF or ON Yes
ۼ
2 Yes Yes
20 Outdoor unit out-
side air temper-
ature thermistor
open-circuit error
Compressor stops if there is
open-circuit in outdoor unit out-
side air temperature thermistor
(TH3). At compressor startup Operation OFF or ON Yes ۼ 2 Yes Yes
21 Outdoor unit suc-
t i o n t h e r m i s t o r
open-circuit error
Compressor stops if there is
open-circuit in outdoor unit suc-
tion ther-mistor (TH4). At compressor startup Operation OFF or ON Yes ۼ 2 Yes Yes
22 O u t d o o r u n i t
2-way valve ther-
mistor open-cir-
cuit error
Compressor stops if there is
open-circuit in outdoor unit 2-way
valve thermistor (TH5). At compressor startup Operation OFF or ON Yes
ۼ
2 Yes Yes
23 Outdoor unit dis-
charge thermistor
open-circuit error
Compressor stops if there is
open-circuit in outdoor unit dis-
charge thermistor (TH1). At compressor startup Operation OFF or ON Yes
ۼ
2 Yes Yes
24 Serial signal error Compressor stops if outdoor unit
cannot receive serial signal from
indoor unit for 30 seconds.
When in operation Reset after reception of
serial signal None None None
25 Compressor start-
up error
Compressor stops if compressor
fails to start up. At compressor startup Operation OFF or ON Yes ۼ 3 Yes Yes
26 Compressor rota-
tion error (at 120°
energizing)
Compressor stops if there is no
input of position detection signal
from compressor or input is ab-
normal. Compressor operating
at 120° energizing Operation OFF or ON Yes ۼ 3 Yes Yes
27 Outdoor unit DC
fan error
Operation stops if there is no in-
put of rotation pulse signal from
outdoor unit fan motor for 30
seconds. When outdoor unit fan is
in operation Operation OFF or ON Yes ۼ 2 Yes Yes
28 PAM overvoltage
error
Compressor stops if DC voltage
is 400 V or higher. When in operation Operation OFF or ON Yes ۼ 2 Yes Yes