Sharp AY-AP9FHR Service Manual

AYAP7FHR
4 – 2
The room is not cooled at all
or not cooled.
The compressor does not operate.
Measure resistances of TH1 and TH2.
Push the button "AUX." on
the indoor unit, for more than 5 sec.
Is the voltage
between terminal "N" and
"1" of the terminal board the
power supply voltage ?
Are the resistances
conformed Fig. 1 ?
Replace the thermistor ass'y with a new one.
NO
YES
YES
NO
Replace the PWB ass'y with a new one.
Using a tester, measure voltage at
the terminals on the terminal board.
100
80
60
40
20
0
-10 0 10 20 30 40
Resistance
Thermistor
Room temperature
Heat exchange
Color
Yellow
Orange
To measure the resistance, first remove
the connector as shown at right.
Room temperature
thermistor TH1
Tester
Connector
No.3to4
No.1to2
Fig. 1 Temperature properties of indoor thermistors
K
Heat exchange thermistor
TH2 (orange)
25 C resistance 15 K
Room temperature
thermistor TH1 (yellow)
25 C resistance 10 K
Heat exchange
thermistor TH2
Tester
4
1
CN2
The control circuit is normal.
The compressor may be defective.
The running capacitor may be defective.
Refrigerant may be leaked.
The outdoor fan motor may be defective.
The outdoor fan motor capacitor may be defective.
The room is not heated at all or not heated.
The compressor does not operate.
The control circuit board is normal.
Refrigerant may be leaked.
The running capacitor may be defective.
The outdoor fan motor may be defective.
The outdoor fan motor capacitor may be defective.
The compressor may be defective.
The thermistor may be defective.
Is the voltage
between terminal "N" and
"1" of the terminal board the
power supply voltage ?
NO
Replace the PWB ass'y with a new one.
Push the button of "AUX." on the
indoor unit, and wait 5 sec..
Using a tester, measure voltages at the
terminals on the terminal board.
Select HEAT MODE with remote controller.
And then start operation.
Is the voltage
between terminal "N" and
"2" of the terminal board the
power supply voltage ?
Is the voltage
between terminal "N" and
"3" of the terminal board the
power supply voltage ?
YES
YES
YES
NO
NO

Sharp AY-AP9FHR Specifications

General

AC input voltage	220-240 V
AC input frequency	50 Hz
Design load (cooling)	- kW
Energy efficiency class (cooling)	A
Annual energy consumption (cooling)	410 kWh
Hourly energy consumption (cooling)	3.8 kWh
Energy efficiency class (heating) (Warmer heating season)	-
Annual energy consumption (heating) (Warmer heating season)	- kWh
Type	Split system
Multi-split	Yes
Product color	White
Hose length (max)	10 m
Refrigerating medium	R410A
Air conditioner functions	Cooling, Heating
Cooling capacity in watts (nominal)	820 W
Cooling energy efficiency (EER, W/W)	3.21
Heating energy efficiency (COP, W/W)	3.61
Heating capacity in watts (nominal) (Warmer heating season)	- W
Heating capacity in watts (nominal) (Average heating season)	855 W
Indoor unit depth	184 mm
Indoor unit width	810 mm
Indoor unit height	270 mm
Indoor unit weight	9000 g
Indoor units quantity	1
Indoor unit noise level (high speed)	55 dB
Outdoor unit depth	250 mm
Outdoor unit width	730 mm
Outdoor unit height	540 mm
Outdoor unit weight	32000 g
Outdoor unit noise level	61 dB