Sanyo SA-79G Technical & Service Manual Download

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7. TROUBLESHOOTING

7-1. Check before and after troubleshooting

7-1-1. Check power supply.

●

Check that voltage is in specified range (±10% of the rating).

●

Check that power is being supplied.

7-1-2. Check lead wires and connectors.

●

Check that coating of lead wires is not damaged.

●

Check that lead wires and connectors are firmly connected.

●

Check that wiring is correct.

Hazardous voltage can cause ELECTRIC SHOCK or
DEATH. Disconnect power or turn off circuit breaker
before you start checking or servicing.

WARNING

Summary of Contents for SA-79G

Page 1: ...ICAL SERVICE MANUAL SA 79G SA 99G FILE NO REFERENCE NO SM700402 WINDOW TYPE AIR CONDITIONER SA 79G SA 99G Model No Product Code No Destination SA 79G A 1 851 005 18 General 50Hz Europe SA 99G A 1 851 005 19 ...

Page 2: ...r back Sharp edges or thin aluminum fins on the air conditioner can cut your fingers WARNING When Installing Place of Installation If possible install the unit in a shady location If the site is exposed to the sun you should provide a sun screen as shown in Fig a Install it at a spot where optimum cooling circulation can be obtained No chairs or other obstructions are allowed in front of the air c...

Page 3: ... functioning well and keep your customer satisfied Please read IMPORTANT precautional information on the previous page before you start actual work SANYO WINDOW TYPE A C NOMENCLATURE SANYO window type air conditioner is identified by a model number Cooling or heating capacity electrical information and special features included on the air conditioner are indicated on the model number ii Example S ...

Page 4: ...es not operate 14 7 3 Some part of air conditioner does not operate 16 7 4 Air conditioner operates but abnormalities are observed 18 8 CHECKING ELECTRICAL COMPONENTS 8 1 Measurement of Insulation Resistance 27 8 2 Checking Motor Capacitor 20 8 3 Checking Fan Motor Winding 20 8 4 Checking Compressor Motor Winding 20 9 DISASSEMBLY PROCEDURES 9 1 Removing Front Grille 21 9 2 Removing Cabinet 22 9 3 ...

Page 5: ...1 1 OPERATING RANGE Temperature Indoor Air Intake Temp Outdoor Air Intake Temp Cooling Maximum 32 C D B 23 C W B 43 C D B Minimum 19 C D B 14 C W B 19 C D B ...

Page 6: ...cal Thermostat Control unit Timer Fan speeds 2 Airflow direction Indoor Horizontal Auto Vertical Manual Air filter Air exhaust Washable Yes Compressor Rotary Hermetic Refrigerant Amount charged at shipment g R22 480 Refrigerant control Capillary tube Operation sound Indoor Hi Lo dB A 45 41 Outdoor Hi Lo dB A 52 47 Slide out chassis Yes Accessories Dimensions Weight Unit dimensions Height mm 345 Wi...

Page 7: ...rol unit Timer Fan speeds 2 Airflow direction Indoor Horizontal Auto Vertical Manual Air filter Air exhaust Washable Yes Compressor Rotary Hermetic Refrigerant Amount charged at shipment g R22 650 Refrigerant control Capillary tube Operation sound Indoor Hi Lo dB A 46 42 Outdoor Hi Lo dB A 53 48 Slide out chassis Yes Accessories Dimensions Weight Unit dimensions Height mm 345 Width mm 440 Depth mm...

Page 8: ...losing Operating amp Ambient temp 25 C Run capacitor µF 25 VAC 400 Fan Fan Motor Indoor Outdoor Type Centrifugal Propeller Dia Depth mm ø180 D85 ø285 D90 7 Fan motor model Q ty YSK45 4A K 1 Source 220 240V 1 phase 50Hz No of poles rpm 230 V High 4 960 Nominal output W 40 Coil resistance Ambient temp 20 C Ω WHT BRN 212 WHT VLT 52 VLT YEL 13 YEL RED PNK 119 Safety devices Type Internal protector Ope...

Page 9: ...Ambient temp 25 C Run capacitor µF 25 VAC 400 Fan Fan Motor Indoor Outdoor Type Centrifugal Propeller Dia Depth mm ø180 D85 ø285 D90 7 Fan motor model Q ty YSK45 4A K 1 Source 220 240V 1 phase 50Hz No of poles rpm 230 V High 4 1 000 Nominal output W 40 Coil resistance Ambient temp 20 C Ω WHT BRN 212 WHT VLT 52 VLT YEL 13 YEL RED PNK 119 Safety devices Type Internal protector Operating temp Open C ...

Page 10: ...6 Model SA 79G SA 99G Auto Deflector Motor MA062299 Rating AC 200 240V 50 60Hz 20mA 4W 5 0 6 0 rpm Coil resistance kΩ at 20 C 9 92 2 3 Other Component Specifications ...

Page 11: ...SA 99G 241 440 345 46 228 605 Slits for ventilation Side view L Front view Side view R Power code outlet Power code outlet Unit mm Dimension with mark indicates the maximum allowable wall thickness required for ventilating the unit NOTE ...

Page 12: ...4 REFRIGERANT FLOW DIAGRAM 8 Model SA 79G Compressor Accumulator Condenser Evaporator Capillary tube Model SA 99G Compressor Accumulator Condenser Evaporator Capillary tube ...

Page 13: ... 97 1 82 CM 0 56 0 61 0 65 0 70 0 77 0 85 21 SHC 1 03 0 98 0 93 0 88 0 83 0 76 19 23 SHC 1 20 1 15 1 10 1 05 1 00 0 93 25 SHC 1 36 1 31 1 26 1 22 1 16 1 09 27 SHC 1 53 1 48 1 43 1 38 1 33 1 26 29 SHC 1 69 1 64 1 60 1 55 1 49 1 43 31 SHC 1 86 1 81 1 76 1 72 1 66 1 59 TC 2 56 2 45 2 34 2 23 2 09 1 93 CM 0 58 0 63 0 67 0 72 0 80 0 87 23 SHC 1 01 0 96 0 91 0 87 0 81 0 75 21 25 SHC 1 18 1 13 1 08 1 03 ...

Page 14: ... 2 44 2 25 CM 0 72 0 77 0 83 0 89 1 00 1 10 21 SHC 1 28 1 22 1 16 1 10 1 03 0 95 19 23 SHC 1 48 1 42 1 36 1 30 1 23 1 14 25 SHC 1 68 1 61 1 55 1 49 1 42 1 34 27 SHC 1 87 1 81 1 75 1 69 1 62 1 54 29 SHC 2 07 2 01 1 95 1 89 1 82 1 73 31 SHC 2 26 2 20 2 14 2 08 2 01 1 93 TC 3 17 3 03 2 89 2 76 2 59 2 38 CM 0 74 0 80 0 85 0 91 1 02 1 13 23 SHC 1 26 1 20 1 14 1 08 1 01 0 93 21 25 SHC 1 46 1 40 1 34 1 2...

Page 15: ...utdoor Air Temperature 35 C D B Full Load Conditions Indoor Air Temperature 32 C D B 23 C W B Outdoor Air Temperature 43 C D B Model SA 99G Fan Motor Compressor Complete Unit Performance at 220 240 V Single phase 50Hz Rating Conditions Running Amps A 0 42 0 45 4 08 3 95 4 5 4 4 Power Input kW 0 095 0 110 0 865 0 890 0 96 1 00 Full Load Conditions Running Amps A 0 42 0 45 6 28 4 95 6 7 5 4 Power In...

Page 16: ...trical Wiring Diagrams Model SA 79G SA 99G To avoid electrical shock hazard be sure to disconnect power before checking servicing and or cleaning any electrical parts WARNING DATA SUBJECT TO CHANGE WITHOUT NOTICE ...

Page 17: ...k that power is being supplied 7 1 2 Check lead wires and connectors Check that coating of lead wires is not damaged Check that lead wires and connectors are firmly connected Check that wiring is correct 13 Hazardous voltage can cause ELECTRIC SHOCK or DEATH Disconnect power or turn off circuit breaker before you start checking or servicing WARNING ...

Page 18: ...rom circuit with other parts properly connected and then measure insulation resistance of entire air conditioner again to locate defective part 2 Replace defective part with new one NOTE Measure insulation resistance of electrical parts Example Compressor Fan motor Capacitor Relay etc NO Set circuit breaker to OFF 1 Pull the power plug out of the wall outlet Measure insulation resistance of unit I...

Page 19: ...set at OFF Check that OPERATION SELECTOR switch is not set at OFF Set to HIGH COOL or LOW COOL NO Check power supply Power is being supplied to the unit Circuit breaker is tripped Power failure Reset breaker Wait for recovery or contact power company Replace with suitable one larger capacity NO Check capacity of circuit breaker Capacity of circuit breaker is suitable Measure resistance of fan moto...

Page 20: ...Measure resistance of auto deflector motor winding Check that OPERATION SELECTOR switch is set at either HIGH COOL or LOW COOL Fan cannot be turned OK Check fan rotation Turn fan gently once or twice by hand Check fan casing foreign matter on inside Fan motor burnout or foreign matter in bearings Remove foreign matter or repair Repair or replace Measure resistance of fan motor winding Check fan mo...

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