Goldstar GWHD6500RY6, GWHD6500R Service Manual
ROOM AIR CONDITIONER
SERVICE MANUAL
CAUTION
BEFORE SERVICING THE UNIT,
READ THE SAFETY PRECAUTIONS IN THIS MANUAL.
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MODEL:
,GWHD6500RY6
GWHD6500R
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CONTENTS
1. PREFACE
....................................................................................................................................................................... 3
1.1 FEATURES ........................................................................................................................................................................ 3
1.2 SPECIFICATIONS ............................................................................................................................................................. 3
1.3 SAFETY PRECAUTIONS ................................................................................................................................................. 3
1.4 INSULATION RESISTANCE TEST ....................................................................................................
................................ 3
1.5 LOCATIONS OF CONTROLS .........................................................................................................
.................................. 4
2. DISASSEMBLY INSTRUCTIONS
.................................................................................................................... 6
2.1 MECHANICAL PARTS .............................................................................................................
......................................... 6
2.1.1 FRONT GRILLE ...............................................................................................................
........................................ 6
2.1.2 CABINET...................................................................................................................
................................................ 6
2.1.3 CONTROL BOARD ................................................................................................................................................... 6
2.2 AIR HANDLING PARTS .................................................................................................................................................... 7
2.2.1 AIR GUIDE UPPER................................................................................................................................................... 7
2.2.2 ORIFICE, TURBO FAN AND FAN............................................................................................................................. 7
2.2.3 MOTOR .................................................................................................................................................................... 8
2.2.4 AIR GUIDE ................................................................................................................................................................ 8
2.3 ELECTRICAL PARTS ....................................................................................................................................................... 8
2.3.1 OVERLOAD PROTECTOR ...................................................................................................................................... 8
2.3.2 COMPRESSOR ........................................................................................................................................................ 9
2.3.3 CAPACITOR ............................................................................................................................................................. 9
2.3.4 THERMISTOR........................................................................................................................................................... 9
2.3.5 CONTROL PANEL..................................................................................................................................................... 9
2.3.6 POWER CORD ...................................................................................................................................................... 10
2.4 REFRIGERANT CYCLE ............................................................................................................................................ 10
2.4.1 CONDENSER ........................................................................................................................................................ 10
2.4.2 EVAPORATOR ....................................................................................................................................................... 10
2.4.3 CAPILLARY TUBE ................................................................................................................................................. 11
3. INSTALLATION
......................................................................................................................................................... 13
3.1 SELECT THE BEST LOCATION ..................................................................................................................................... 13
3.2 HOW TO INSTALL .......................................................................................................................................................... 13
3.3
ELECTRICAL DATA
..................................................................................................................................................... 16
4. TROUBLESHOOTING GUIDE
........................................................................................................................
16
4.1 OUTSIDE DIMENSIONS ................................................................................................................................................. 16
4.2 PIPING SYSTEM ............................................................................................................................................................ 17
4.3 TROUBLESHOOTING GUIDE ........................................................................................................................................ 18
5. SCHEMATIC DIAGRAM
...................................................................................................................................... 26
5.1 CIRCUIT DIAGRAM......................................................................................................................................................... 26
5.2 ELECTRONIC CONTROL DEVICE................................................................................................................................. 27
5.3
COMPONENTS LOCATION(FOR MAIN P.W.B ASM)
............................................................................................................... 28
5.4
COMPONENTS LOCATION(FOR DISPLAY P.W.B ASM)
......................................................................................................... 28
6. EXPLODED VIEW
................................................................................................................................................... 29
7. SERVICE PARTS LIST
......................................................................................................................................... 30
1. PREFACE
This service manual provides various service information, including the mechanical and electrical parts, etc.
This room air conditioner
was manufactured and assembled under a strict quality control system.
The refrigerant is charged at the
factory. Be sure to read the safety precautions prior to servicing the unit.
1.1 FEATURES
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DESIGNED FOR COOLING ONLY
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POWERFUL AND INCREDIBLE COOLING
TOP-DOWN CHASSIS FOR THE SIMPLE INSTALLATION AND SERVICE
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WASHABLE ONE-TOUCH FILTER
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COMPACT SIZE
1.2 SPECIFICATIONS
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NOTE:
Specifications are subject to minor change without notice
for further improvement.
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MODELS
ITEMS
COOLING CAPACITY (BTU/h)
6,500
POWER SUPPLY (Phase, V, Hz)
1�, 115V, 60HZ
INPUT (W)
670
OPERATING CURRENT (AMP.)
6.1
REFRIGERANT CONTROL
CAPILLARY TUBE
REFRIGERANT CHARGE (R-22)
380g (13.4 Oz)
INSIDE FAN
TURBO
OUTSIDE FAN
PROPELLER FAN WITH SLINGER RING
AIR DISCHARGE
2-WAY (RIGHT AND LEFT)
CHASSIS
TOP-DOWN
PROTECTOR
TEMPERATURE CONTROL
THERMISTOR
SWITCH
2 SPEED (LOW FAN, HIGH FAN)
FAN MOTOR
6 POLES, 28W
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OVERLOAD PROTECTOR FOR COMPRESSOR
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INTERNAL PROTECTOR FOR FAN MOTOR
1.3 SAFETY PRECAUTIONS
1. When servicing, set the POWER of CONTROL
BOARD to Off and unplug the
power cord.
2. Observe the original lead dress.
If
a short circuit is found, replace all parts which
ha
ve been overheatedor damaged by the short cir-
cuit.
3. After servicing, mak
e an insulation resistance test
to pre
vent the customer's exposure to shock
hazards
.
1.4
INSULATION RESISTANCE TEST
1. Unplug the power cord and connect a jumper
between
2 pins (black and white).
2. The grounding conductor (green or green and yel-
low) is to be open.
3. Measure the resistance
value with an ohm meter
between the jumpered lead and each
exposed
metallic par
t on the equipment at all Mode [except
POWER OFF].
4. The
value should be over 1 M�.
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GWHD6500R
GWHD6500RY6
350g (12.4
Oz)
_ _
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1.5 LOCATIONS OF CONTROLS
1.5.1 CONTROLS
Dry Fan
Cool
TIMER
- STOPPING OPERATION
Everytime you push this button, when the unit is operating,
timer is set as follows.
(1Hour 2Hours 3Hours 4Hours 5Hours 6Hours
7Hours 8Hours 9Hours 10Hours 11Hours 12Hours Cancel)
The Setting Temperature will be raised by 2 F(1 C) 30min. later
and by 2 F(1 C) after another 30 min.
MODE
Everytime you push this button, it will toggle between
COOL, FAN, DRY or FAN, COOL.
POWER
To turn the unit ON, push the button. To turn the unit OFF,
push the button again.
This button takes priority over any other buttons.
When you first turn it on, the unit is on the High cool mode
and the temp. at 72 F(22 C).
TEMPERATURE SETTING
This button can automatically control the temperature
of the room. The temperature can be set within a range of
60 F(16 C) to 86 F(30 C) by 1 F(1 C).
Select the lower number for lower temperature of the room.
FAN SPEED
Everytime you push this button it is set as follows.
{High(F2) Low(F1) High(F2)...} or
{High(F3) Mid(F2) Low(F1) High(F3)...}.
ENERGY SAVER
The fan stops when the compressor stops cooling.
Approximately every 3 minutes the fan will turn on and
check the room air to determine if cooling is needed.
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1.5.2
REMOTE CONTROLLER
How to Insert Batteries
1.
Remove the cover from the back of the
remote controller
2.
Insert two batteries.
Be sure that the (+) and (-) directions
are correct.
Be sure that both batteries are ne
w.
3.
Re-attach the cover.
Do not use rechargeable batteries
. Such bat-
teries
differ from standard dr
y cells in shape, dimen-
sions
, and performance.
Remo
ve the batteries from the remote con-
troller if the air conditioner is not going to be
used
for an extended length of time.
Auto
Swing
Power
Temp
Fan Speed
Timer Mode
Energy
Sa
ver
TEMPERATURE SETTING
ENERGY SAVER
The fan stops when the compressor stops cooling.
Approximately every 3 minutes the fan will turn on and
check the room air to determine if cooling is needed.
FAN SPEED
Everytime you push this button it is set as follows.
{High(F2) Low(F1) High(F2) or
{High(F3) Mid(F2) Low(F1) High(F3)...}
POWER
To turn the Set ON, push the button. To turn the Set OFF, push the button again.
This button takes priority over any other buttons.
When you first turn it on, the Set is on the High cool mode and the temp. at 72
�
F(22�C).
COOL/FAN/DRY or COOL/FAN
Everytime you push this button, it will toggle between COOL, FAN and DRY.
TIMER
- STOPPING OPERATION
Everytime you push this button, when the set is operating,
timer is set as follows.
(1Hour 2Hours 3Hours 4Hours 5Hours 6Hours
7Hours 8Hours 9Hours 10Hours 11Hours 12Hours Cancel)
The Setting Temperature will be raised by 2
�
F(1�C) 30min.
later and by 2
�
F(1�C) after another 30 min.
This button can automatically control the temperature of the room.
The temperature can be set within a range of
60
�
F(16�C) to
86
�
F(30�C) by 1�F(1�C).
Select the lower number for lower temperature of the room.
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—6—
2. DISASSEMBLY INSTRUCTIONS
2.1 MECHANICAL PARTS
2.1.1 FRONT GRILLE
1. Disconnect the unit from source of power.
2. Using a screwdriver, remove the screw that
secures the front grille to control board.
(See Figure 1)
3. Push the front grille up from the bottom.
Pull the top of the front grille away from the
cabinet as the top tabs lift out of their slots.
(See Figure 2)
4. Replace the grille by placing the tabs in the slots
and push the grille until it snaps into place.
2.1.2 CABINET
1. Disconnect the unit from the power source.
2. Remove the front grille. (Refer to section 2.1.1)
3. Remove 9 screws that secure the cabinet to the
base pan and condenser. (See Figure 3)
4. Lift the cabinet from the unit.
5. Re-install by referring to the procedures above.
2.1.3 CONTROL BOARD
1. Disconnect the unit from the power source.
2. Remove the front grille. (Refer to Section 2.1.1)
3. Remove the cabinet. (Refer to Section 2.1.2)
4. Remove 2 screws that secure the control board to
base pan and air guide. (See Figure 4)
5. Pull the control board toward yourself.
6. Disconnect one housing terminal and 3 wires for
the fan motor and compressor. (See Figure 5)
7. Re-install components by referring to procedures
above. (Refer to circuit diagram on page 26 in this
manual or inside control board.)
Figure 1
Figure 2
Figure 3
Figure 4
Figure 5
NOTE : Controls, wires, and capacitor are now
accessible for servicing. Discharge the
capacitor before servicing. See step
2.3.3 on page 9 for procedures.
—7—
2.2 AIR HANDLING PARTS
2.2.1 AIR GUIDE UPPER
1. Disconnect the unit from the power source.
2. Remove the front grille. (Refer to Section 2.1.1)
3. Remove the cabinet. (Refer to Section 2.1.2)
4. Remove the control board.
(Refer to Section 2.1.3)
5. Remove 2 screws that secure the brace to air
guide upper and shroud. (See Figure 6)
6. Remove 2 screws that secure the air guide upper
to air guide lower. (See Figure 6)
7. Lift air guide upper upward.
8. Re-install by referring to the procedures above.
2.2.2 ORIFICE, TURBO FAN AND FAN
1. Disconnect the unit from the power source.
2. Remove the front grille. (Refer to Section 2.1.1)
3. Remove the cabinet. (Refer to Section 2.1.2)
4. Remove the control board.
(Refer to Section 2.1.3)
5. Remove the air guide upper.
(Refer to Section 2.2.1)
6. Remove 2 screws that secure the base pan to
condenser. (See Figure 7)
7. Remove 2 screws that secures the shroud to
channel of condenser.
8. Press the snap area of shroud with your thumbs.
This allows you to remove it from the condenser.
9. Lift the compressor upward with the evaporator
and condenser. (See Figure 7)
10. Remove the orfice by pushing the snap area of
the air guide blower. (See Figure 8)
11. Remove the clamp springs which are clamped to
the boss of fan and turbo fan by hand plier. (See
Figure 9)
12. Pull the fan and turbo fan outward.
13. Remove the shroud.
14. Re-install by referring to the procedures above.
Figure 6
Figure 7
Figure 8
Figure 9
— 8 —
2.2.3 MOTOR
1. Disconnect the unit from the power source.
2. Remove the front grille. (Refer to Section 2.1.1)
3. Remove the cabinet. (Refer to Section 2.1.2)
4. Remove the control board.
(Refer to Section 2.1.3)
5. Remove the air guide upper.
(Refer to Section 2.2.1)
6.
Remove the compressor, turbo fan, fan and
shroud
. (Refer to
Section
2.2.2)
7.
Remove 2 screws that secure the motor to the
moto
r. (See Figure 10)
8. Remove the motor.
9.
Re-install by referring to the procedures above.
2.2.4 AIR GUIDE
1. Disconnect the unit from the power source.
2. Remove the front grille. (Refer to Section 2.1.1)
3. Remove the cabinet. (Refer to Section 2.1.2)
4. Remove the control board.
(Refer to Section 2.1.3)
5. Remove the air guide upper.
(Refer to Section 2.2.1)
6.
Remove the compressor, turbo fan, fan and
shroud
. (Refer to
Section
2.2.2)
7.
Remove the motor. (Refer to
Section
2.2.3)
8. Remove 2 screws that secure the air guide to the
base pan. (See Figure 11)
9. Push the air guide backward and lift it upward.
(See Figure 11)
10. Re-install by referring to the procedures above.
2.3 ELECTRICAL PARTS
2.3.1 OVERLOAD PROTECTOR
1. Remove the front grille and cabinet.
(Refer to Section 2.1)
2. Remove the nut which fastens the terminal cover.
3. Remove the terminal cover.
4. Remove all the leads from the overload protector.
5. Remove the overload protector.
6. Re-install the components by referring to the
removal procedure above.
(See Figure 12 and 13)
Figure 10
Figure 12
Figure 13
Figure 11
- 9-
2.3.2 COMPRESSOR
1. Remove the front grille and cabinet.
(Refer to Section 2.1.2)
2. Discharge the refrigerant by using a refrigerant
recovery system.
3. Remove the overload protector.
(Refer to Section 2.3.1)
4. After discharging the unit completely, unbrace the
suction and discharge pipes at the compressor
connections.
5. Remove 3 nuts which fasten the compressor.
6. Remove the compressor.
7. Re-install by referring to the removal procedure
above. (See Figure 14)
2.3.3 CAPACITOR
1. Remove the cabinet. (Refer to Section 2.1.2)
2. Remove the control board.
(Refer to Section 2.1.3)
3. Discharge the capacitor by placing a 20 K
resistor across the capacitor terminals.
4. Pull the capacitor upward.
5. Remove all the leads of capacitor terminals.
6. Re-install the components by referring to the
removal procedure above. (See Figure 15)
2.3.4 THERMISTOR
1. Remove the cabinet. (Refer to Section 2.1.2)
2. Remove the control board.
(Refer to Section 2.1.3)
3. Disconnect the thermistor terminals from main
P.W.B assembly.
4. Remove the thermistor.
5. Re-install the components by referring to the
removal procedure above. (See Figure 16)
2.3.5 CONTROL PANEL
1. Remove the cabinet. (Refer to Section 2.1.2)
2. Remove the control board.
(Refer to Section 2.1.3)
3. Pull the control panel forward and pull out it.
4. Remove 2 lead wire terminals.
5. Re-install the components by referring to the
removal procedure above. (See Figure 17)
Figure 14
Figure 15
Figure 16
Figure 17
-10 -
2.3.6 POWER CORD
1. Disconnect the unit from source of power.
2. Remove the front grille. (Refer to Section 2.1.1)
3. Remove the cabinet. (Refer to Section 2.1.2)
4. Remove 2 screws that secure control board to
base pan and air guide. (Refer to Section 2.1.3)
5. Pulls the control board toward you.
6. Remove the grounding screw.
7. Remove a screw securing the clip with cord to the
control board.
8. Pull the power cord.
9. Re-install by referring to procedures above.
2.4 REFRIGERANT CYCLE
2.4.1 CONDENSER
1. Remove the cabinet. (Refer to Section 2.1.2)
2. Discharge the refrigerant by using a refrigerant
recovery system.
3. Remove 2 screws which fasten the condenser.
(See Figure 19)
4. After discharging the refrigerant completely,
unbraze the interconnecting tube at the
condenser connections.
5. Remove the condenser.
6. Re-install by referring to the procedures above.
2.4.2 EVAPORATOR
1. Remove the cabinet. (Refer to Section 2.1.2)
2. Discharge the refrigerant by using a refrigerant
recovery system.
3. Remove the air guide upper. (Refer to Section
2.2.1)
4. After discharging the refrigerant completely,
unbraze the interconnecting tube at the evaporator
connections.
5. Remove the evaporator.
6. Re-install by referring to the procedures above.
Figure 18
Figure19
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