Turbo Air TSD-35CF Service Manual

A

SERVICE M

CHEST FREEZER
Model : TSD-27CF

NUAL

TSD-27CF

Specification: Subject to change without notice.

SPECIFICATION TSD-27CF

Classification Direct Cool, Manual Defrost, Tropical
Power Source 115VAC, 60 Hz.

Volume 138 Liters (4.9 cu.ft)
Rated Current 2.0 Amp.
Rated Power Input 135 Watts
Power Consumption

High side /Low side
pressure

1.30 kW·h/24h
155psig/-2.22psig

Refrigerant HFC-134a (Tetrafluoroethane) CF3CH2F 115gm
Overall Dimension 695(W) x595(D) x 910(H) mm
Net Weight/Gross Weight 45 Kg./50 Kg.

ISSUED BY:

REVIEWED BY:

REVISION 2.0

PRODUCT SPECIFICATION

CHEST FROZEN SHOWCASE

TSD-27CF

Model TSD-27CF
Classification Sliding glass Door, Direct Cool, Tropical
Color/Door White/ with Door Lock Sliding Glass
Body Finish Baked Acrylic Powder Coat
Temperature Control Thermostat
Defrost System Manual Defrost
Drain Manual Drain
Evaporator Tube Type
Condenser Tube Type

Insulation

Cabinet
Freezer Door

Rigid Polyurethane Foam (Blowing Agent CP)

Rigid Polyurethane Foam
Refrigerant HFC-134a (Tetrafluoroethane) CF3CH2F
Refrigerant Charge (gm.) 115 gm
Door Lamp None
Fan Motor None
Compressor

KONOR GQY50AD

135 Watts
Compressor Oil 290 ml.POE Polyol Ester (Synthetic)
PTC Starter
Overload Protector

11650X011 signT0296/74/T0296/05,B94-130-74,4TM762PBFZZ-51(6.3):Cut temperature:115­125 ℃ ;Close temperature:70-52 ℃ ;
current):3.36A/70℃

8115PTH7M4R7MC1 (3.8Ω～5.6Ω, Max current 18A/180V)

Overload current ： 27A;UTC(Min action

Dryer (Desiccant) 15 gm.
Overall Dimension (W x D x H mm.) 695(W) x595(D) x 910(H) mm
Packing Dimension (W x D x H mm.) 765 (W) x 680 (D) x 970(H) mm
Net Weight (kg.) 45kg.
Gross Weight (kg.) 50 kg.

CHARACTERISTIC

Operating Temperature (°C)

Model
Dial Position

Temperature Control

WARM 1
NORMAL 4
COLD 7

-10.0°C ± 2 °C

-15.0°C ± 2 °C

-20.0°C ± 2 °C

CHEST FROZEN SHOWCASE

ELEC. CIRCUIT: TSD-27CF

TSD-27CF

COOLING SYSTEM
TSD-27CF

CHEST FROZEN SHOWCASE

PARTS LIST of TSD-27CF

TSD-27CF

S/N Part name qty

101 Upper glass door 1

102 Lower glass door 1

103 Food basket 2

201 Foaming body 1

202 Side cover holder A 2

203 Screw ST3.5X13-C-H 2

204 Side cover 1

205 Side cover holder B 1

206 Side cover holder C 1

207 thermostat 1

208 Thermostat panel 1

209 Red indicator light 1

210 Green indicator light 1

211 Thermostat knob 1

212 Thermostat panelcover
213 Castor 2” 4

214 Base support 1

215 Screw ST4.2x16-C-H 4

216 Condenser support 4

217 Screw ST4.2x16-C-H 2

218 Condenser 1

219 Dryer filter 1

220 Dryer filter support 1

221

222

Cappilary tube

suction tube

1

1

223 Compressor support 1

301 CompressorGQY50AD 1

302 Compressor clip 2

303 Compressor anti-vibration gasket 4

304 Over load protector 1

CHEST FROZEN SHOWCASE

TSD-27CF

305 Protector clip 1

306 Compressor electric box cover 1

307 Compressor electric box clip 1

308 PTC starter 1

309 Compressor process tube 1

401 Screw M4x22 2

402 Connector box cover 1

403 Connector box support 1

404 Power cord retainer base 1

405 Power cord 1

406 Power cord retainer 1

407 Screw M4x20 2

408 Connector box retainer 1

409 Screw M4x20 2

Exploded View of TSD-27CF

CHEST FROZEN SHOWCASE

TSD-27CF

CHEST FROZEN SHOWCASE

CHARACTERISTIC

TSD-27CF

Parts Name Picture Check Method and Criterion

Measure the resistance with a tester.

Compressor
Model :TSD­27CF

PTC Starter
Model : TSD­27CF

Overload
Protector
Model : TSD­27CF

TROUBLE SHOOTING

Thermostat

PTC Starter

Overload Protector

(Ambient temperature : Room temperature 25

Model Main Wiring

KONOR

Normal

GQY50AD

135 WATTS

Abnormal
Measure the resistance with a tester.
(Ambient temperature : Room temperature 25
Model

Normal

Abnormal

(3.8Ω～5.6Ω, Max current 18A/180V)

Open(

Measure the resistance with a tester.
(Ambient temperature : Room temperature 25

Model

T0296/74/T0296/05,B94-130-74,4TM762PBFZZ-

Less than 1

Normal

125℃ ;Close temperature:70-52℃;

current

：27A;UTC(Min action current):3.36A/70℃

Abnormal

Repair Procedure

1. Set Thermo Knob to OFF position, pull & straightened feeler
bulb

2. Remove Thermostat cover and pull out Thermostat from
Thermo Box

3. Short the thermostat terminal and check, if compressor
runs.

4. Replace thermostat

5. After replacing Thermostat, reverse steps above.

Repair Procedure

1. Release Relay Cover Fixing Clip.

2. Remove Relay Cover.

3. Remove PTC Starter

4. Pull out PTC Starter, check if open and compare value of
resistance with given value, if not

5. Hold receptacle terminal then pull electrical wire from PTC
Starter.

6. Replaces PTC Starter (change overload protector together),
reverse the steps above.

Repair Procedure

1. Check for continuity on overload protector, if open

2. Pull out Overload Protector.

3. Hold receptacle terminal then pull electrical wire from
Overload Protector.

4. Replace overload protector.

°

c)

Auxiliary

Wiring

～8Ω

7
(Approx.)S

Open( ∞ Ω ) or Short Circuited ( 0

Ω

)

°

8115PTH7M4R7MC1

∞ Ω

) or Short Circuited ( 0 Ω )

°

51(6.3)

Ω

(Approx.) Cut temperature:115-

9.9
(Approx.)S

c)

c)

～

Overload

Open(

∞ Ω

)

11.3Ω

CHEST FROZEN SHOWCASE

TSD-27CF

Cause Check Point Correction

Repair Procedure

Compressor

Check coils
resistances

1. Replace compressor if measured resistances differ from given standard

2. Abnormal noise

Repair Procedure

1. Operate unit for 10 minutes with thermostat set at maximum

Not cooling

Check thermostat
setting

Repair Procedure

Insufficient cooling Check gasket gap

1. Check if gap can be resolved by adjustment of door hinges fixing screws.

2. Defrost if accumulation of frost is more than 10mm.

Repair Procedure

Malfunction due to
leaks or clogged
system

Charged (purge) with
nitrogen into the
refrigeration system
& check for leaks on
welds or clogs

1. Check for clog or leak in the cooling system.

2. Repair or replace the clogged or leak section.

3. Evacuate and change filter dryer.

4. Purge with nitrogen to clean and check for leaks

5. Recharge refrigerant, test run and seal system

TROUBLE INSPECTION CAUSES REMEDY

No Power

No Light

Check electric power
supply voltage

Check electrical circuit

Check lamp

Open circuit breaker or
fuse

Open Fuse Replace
Worn out or defective A/C

cord
Open Replace

Fix or replace

Replace

Check lamps socket

Low Cooling Check for thermo setting Setting too low Set thermostat higher

Defective Cooling
System

Check Overload Protector Check for continuity Replace if open.

Check leaks

Check Thermostat

Check PTC starter
resistance against given
value

Check for leaks

Check Compressor
resistance against given
specification

Check Pipe System

Corroded

Deform or warp door
gasket.

Poor weld on joints

Over storage or load or
heavy frost accumulation

Check if compressor runs
by shortening thermostat

Open, no resistance or
differ from given value

Leaks or poor welds on
joints

Defective

Clogged Pipe System or
oil choke

Replace

Adjust door hinges fixing
screws

Repair, purge with
nitrogen re-charge
refrigerant and test run.

Reduce or re-arrange
load or defrost unit

Replace thermostat if
compressor runs.

Replace PTC starter.

Repair, re-weld, purge,
evacuate and recharge
refrigerant

Replace, weld, purge,
check for leaks and re­charge refrigerant, test run
and seal system

1. Evacuate then Purge
with nitrogen to remove
clogs

2. Repair or replace
clogged section, evacuate,
purge, check leak and re­charge refrigerant. Test
Run and seal system

A

SERVICE M

CHEST FREEZER
Model : TSD-35CF

NUAL

TSD-35CF

Specification: Subject to change without notice.

SPECIFICATION TSD-35CF

Classification Direct Cool, Manual Defrost, Tropical
Power Source 115VAC, 60 Hz.

Volume 208 Liters (7.3 cu.ft.)
Rated Current 3.0 Amp.
Rated Power Input 200 Watts
Power Consumption

High side /Low side
pressure

1.80 kW·h/24h
155psig/-2.22psig

Refrigerant HFC-134a (Tetrafluoroethane) CF3CH2F 160gm
Overall Dimension 895(W) x595(D) x 910(H) mm
Net Weight/Gross Weight 55 Kg./60 Kg.

ISSUED BY:

REVIEWED BY:

REVISION 2.0

PRODUCT SPECIFICATION

CHEST FROZEN SHOWCASE

TSD-35CF

Model TSD-35CF
Classification Sliding glass Door, Direct Cool, Tropical
Color/Door White/ with Door Lock Sliding Glass
Body Finish Baked Acrylic Powder Coat
Temperature Control Thermostat
Defrost System Manual Defrost
Drain Manual Drain
Evaporator Tube Type
Condenser Tube Type

Insulation

Cabinet
Freezer Door

Rigid Polyurethane Foam (Blowing Agent CP)

Rigid Polyurethane Foam
Refrigerant HFC-134a (Tetrafluoroethane) CF3CH2F
Refrigerant Charge (gm.) 160 gm
Door Lamp None
Fan Motor None
Compressor

KONOR GQY70AD

165 Watts
Compressor Oil 290 ml.POE Polyol Ester (Synthetic)
PTC Starter
Overload Protector

11650X011 signT0296/74/T0296/05,B94-130-74,4TM762PBFZZ-51(6.3):Cut temperature:115­125 ℃ ;Close temperature:70-52 ℃ ;
current):3.36A/70℃

8115PTH7M4R7MC1 (3.8Ω～5.6Ω, Max current 18A/180V)

Overload current ： 27A;UTC(Min action

Dryer (Desiccant) 15 gm.
Overall Dimension (W x D x H mm.) 895(W) x595(D) x 910(H) mm
Packing Dimension (W x D x H mm.) 965 (W) x 680 (D) x 970(H) mm
Net Weight (kg.) 55kg.
Gross Weight (kg.) 60 kg.

CHARACTERISTIC

Operating Temperature (°C)

Model
Dial Position

Temperature Control

WARM 1
NORMAL 4
COLD 7

-10.0°C ± 2 °C

-15.0°C ± 2 °C

-25.0°C ± 2 °C

CHEST FROZEN SHOWCASE

TSD-35CF

ELEC. CIRCUIT: TSD-35CF

COOLING SYSTEM
TSD-35CF

PARTS LIST of TSD-35CF

S/N Part name qty
101 Upper glass door 1
102 Lower glass door 1
103 Food basket 2
201 Foaming body 1
202 Screw ST4.Xx16-C-H 2
203 Exhaust cover 1
204 Side cover holder A 2
205 Screw ST3.5x13-C-H 2
206 Side cover 1
207 Side cover holder B 1
208 Side cover holder C 1
209 thermostat 1
210 Thermostat panel 1
211 Red indicator light 1
212 Green indicator light 1
213 Thermostat knob 1
215 Dryer filter 1
216 Dryer filter support 1
217 Cappilary tube 1
218 suction tube 1
219 Base support 1
220 Screw ST4.2x16-C-H 4
221 Screw 4.2x16-C-H 2
222 Castor 2” 2
223 Screw ST4.2x16-C-H 2
224 Castor 2” 2
225 Screw ST4.2x16-C-H 4
226 Compressor support 1

227
228

301 compressor 1
302 Screw M6x30 4
303 washer 4
304 Over load protector 1
305 Protector clip 1
306 Compressor electric box cover 1
307 Compressor electric box clip 1
308 PTC starter 1
309 Process tube 1
310 Nut M6 4
311 Spring 4
312 Screw M5x10 2

CHEST FROZEN SHOWCASE

TSD-35CF

Fan motor support 1
Screw ST4.2x16-C-H 4

CHEST FROZEN SHOWCASE

TSD-35CF

313 anti-vibration gasket cover 4
314 Compressor anti-vibration gasket 4
315 Nut M4 2
316 spring 2
317 Fan motor 1
318 Fan-cool condenser 1
401 Screw M4x22 2
402 Connector box cover 1
403 Connector box support 1
404 Power cord retainer base 1
405 Power cord 1
406 Power cord retainer 1
407 Screw M4x20 2
408 Connector box holder 1
409 Screw M4x20 2

Exploded View of TSD-35CF

CHEST FROZEN SHOWCASE

TSD-35CF

CHEST FROZEN SHOWCASE

CHARACTERISTIC

TSD-35CF

Parts Name Picture Check Method and Criterion

Measure the resistance with a tester.

Compressor
Model :TSD­35CF

PTC Starter
Model : TSD­35CF

Overload
Protector
Model : TSD­35CF

TROUBLE SHOOTING

Thermostat

PTC Starter

Overload Protector

(Ambient temperature : Room temperature 25

Model Main Wiring

KONOR

Normal

GQY70AD

164 WATTS

Abnormal
Measure the resistance with a tester.
(Ambient temperature : Room temperature 25
Model

Normal

Abnormal

Open(

8115PTH7M4R7MC1

(3.8Ω～5.6Ω, Max current 18A/180V)

∞ Ω

Measure the resistance with a tester.
(Ambient temperature : Room temperature 25

Model

Normal

T0296/74/T0296/05,B94-130-74,4TM762PBFZZ-

Less than 1

125℃ ;Close temperature:70-52℃;Overload

current

Ω

：27A;UTC(Min action current):3.36A/70℃

Abnormal

Repair Procedure

1. Set Thermo Knob to OFF position, pull & straightened feeler
bulb

2. Remove Thermostat cover and pull out Thermostat from
Thermo Box

3. Short the thermostat terminal and check, if compressor
runs.

4. Replace thermostat

5. After replacing Thermostat, reverse steps above.

Repair Procedure

1. Release Relay Cover Fixing Clip.

2. Remove Relay Cover.

3. Remove PTC Starter

4. Pull out PTC Starter, check if open and compare value of
resistance with given value, if not

5. Hold receptacle terminal then pull electrical wire from PTC
Starter.

6. Replaces PTC Starter (change overload protector together),
reverse the steps above.

Repair Procedure

1. Check for continuity on overload protector, if open

2. Pull out Overload Protector.

3. Hold receptacle terminal then pull electrical wire from
Overload Protector.

4. Replace overload protector.

°

c)

Auxiliary

Wiring

～

2.9

2.5

Ω

(Approx.)S

Open( ∞ Ω ) or Short Circuited ( 0

Ω

)

°

4.1
(Approx.)S

c)

～

4.7Ω

) or Short Circuited ( 0 Ω )

°

c)

51(6.3)

(Approx.) Cut temperature:115-

Open(

∞ Ω

)

CHEST FROZEN SHOWCASE

TSD-35CF

Cause Check Point Correction

Repair Procedure

Compressor

Check coils
resistances

1. Replace compressor if measured resistances differ from given standard

2. Abnormal noise

Repair Procedure

1. Operate unit for 10 minutes with thermostat set at maximum

Not cooling

Check thermostat
setting

Repair Procedure

Insufficient cooling Check gasket gap

1. Check if gap can be resolved by adjustment of door hinges fixing screws.

2. Defrost if accumulation of frost is more than 10mm.

Repair Procedure

Malfunction due to
leaks or clogged
system

Charged (purge) with
nitrogen into the
refrigeration system
& check for leaks on
welds or clogs

1. Check for clog or leak in the cooling system.

2. Repair or replace the clogged or leak section.

3. Evacuate and change filter dryer.

4. Purge with nitrogen to clean and check for leaks

5. Recharge refrigerant, test run and seal system

TROUBLE INSPECTION CAUSES REMEDY

No Power

No Light

Check electric power
supply voltage

Check electrical circuit

Check lamp

Open circuit breaker or
fuse

Open Fuse Replace
Worn out or defective A/C

cord
Open Replace

Fix or replace

Replace

Check lamps socket

Low Cooling Check for thermo setting Setting too low Set thermostat higher

Defective Cooling
System

Check Overload Protector Check for continuity Replace if open.

Check leaks

Check Thermostat

Check PTC starter
resistance against given
value

Check for leaks

Check Compressor
resistance against given
specification

Check Pipe System

Corroded

Deform or warp door
gasket.

Poor weld on joints

Over storage or load or
heavy frost accumulation

Check if compressor runs
by shortening thermostat

Open, no resistance or
differ from given value

Leaks or poor welds on
joints

Defective

Clogged Pipe System or
oil choke

Replace

Adjust door hinges fixing
screws

Repair, purge with
nitrogen re-charge
refrigerant and test run.

Reduce or re-arrange
load or defrost unit

Replace thermostat if
compressor runs.

Replace PTC starter.

Repair, re-weld, purge,
evacuate and recharge
refrigerant

Replace, weld, purge,
check for leaks and re­charge refrigerant, test run
and seal system

1. Evacuate then Purge
with nitrogen to remove
clogs

2. Repair or replace
clogged section, evacuate,
purge, check leak and re­charge refrigerant. Test
Run and seal system

A

SERVICE M

CHEST FREEZER
Model : TSD-47CF/TSD-60CF

NUAL

TSD-47CF/TSD-60CF

Specification: Subject to change without notice.

SPECIFICATION TSD-47CF TSD-60CF

Classification Direct Cool, Manual Defrost, Tropical
Power Source 115VAC, 60 Hz.

Volume 298 Liters (10.5 cu.ft.) 318 Liters (11.2 cu.ft.)
Rated Current 2.5 Amp.
Rated Power Input 270 Watts
Power Consumption

High side /Low side
pressure

3.2 kW·h/24h 3.5 kW·h/24h
155psig/-2.22psig

Refrigerant HFC-134a (Tetrafluoroethane) CF3CH2F 215gm
Overall Dimension 1215(W) x600(D) x 910(H) mm 1295(W) x600(D) x 910(H) mm
Net Weight/Gross Weight 62 Kg./73 Kg. 64 Kg./75 Kg.

ISSUED BY:

REVIEWED BY:

REVISION 2.0

PRODUCT SPECIFICATION

CHEST FROZEN SHOWCASE

TSD-47CF/TSD-60CF

Model TSD-47CF TSD-60CF
Classification Sliding glass Door, Direct Cool, Tropical
Color/Door White/ with Door Lock Sliding Glass
Body Finish Baked Acrylic Powder Coat
Temperature Control Thermostat
Defrost System Manual Defrost
Drain Manual Drain
Evaporator Tube Type
Condenser Tube Type+Fan-cooling Condenser

Insulation

Cabinet
Freezer Door

Rigid Polyurethane Foam (Blowing Agent CP)

Rigid Polyurethane Foam
Refrigerant HFC-134a (Tetrafluoroethane) CF3CH2F
Refrigerant Charge (gm.) 215 gm
Door Lamp None
Fan Motor ZCF-200(100V-125V/60Hz)
Compressor

DONPER EU1121BZ

160 Watts
Compressor Oil 290 ml.POE Polyol Ester (Synthetic)
PTC Starter

QP2-4.7C

Overload Protector B85-105(220VAC 1.5A-15A 80℃-140℃)
compressor capacity CBB60(15µF ±5%C,250V.AC 50/60Hz)
Dryer (Desiccant) 20 gm.
Overall Dimension (W x D x H mm.) 1215(W) x600(D) x 910(H) mm 1295(W) x600(D) x 910(H) mm
Packing Dimension (W x D x H mm.) 1270(W) x680(D) x 980(H) mm 1355(W) x680(D) x 980(H) mm
Net Weight (kg.) 62kg. 64kg.
Gross Weight (kg.) 73 kg. 75 kg.

CHARACTERISTIC

Operating Temperature (°C)

Model
Dial Position

Temperature Control

WARM 1
NORMAL 4
COLD 7

-10.0°C ± 2 °C

-15.0°C ± 2 °C

-25.0°C ± 2 °C

CHEST FROZEN SHOWCASE

TSD-47CF/TSD-60CF

ELEC. CIRCUIT: TSD-47CF/TSD-60CF

COOLING SYSTEM
TSD-47CF/TSD-60CF

CHEST FROZEN SHOWCASE

PARTS LIST of TSD-47CF/TSD-60CF

TSD-47CF/TSD-60CF

S/N Part name qty

101 Upper glass door 1

102 Lower glass door 1

103 Food basket 4

201 Foaming body 1

202 Screw ST4.Xx16-C-H 2

203 Exhaust cover 1

204 Side cover holder A 2

205 Screw ST3.5x13-C-H 2

206 Side cover 1

207 Side cover holder B 1

208 Side cover holder C 1

209 thermostat 1

210 Thermostat panel 1

211 Red indicator light 1

212 Green indicator light 1

213 Thermostat knob 1

215 Dryer filter 1

216 Dryer filter support 1

217

218

Cappilary tube

suction tube

1

1

219 Base support 1

220 Screw ST4.2x16-C-H 4

221 Screw 4.2x16-C-H 2
222 Castor 2” 2

223 Screw ST4.2x16-C-H 2
224 Castor 2” 2

225 Screw ST4.2x16-C-H 4

226 Compressor support 1

227
228

Fan motor support 1

Screw ST4.2x16-C-H 4

301 Compressor EU1121BZ 1

302 Screw M6x30 4

CHEST FROZEN SHOWCASE

TSD-47CF/TSD-60CF

303 washer 4

304 Over load protector 1

305 Protector clip 1

306 Compressor electric box cover 1

307 Compressor electric box clip 1

308 PTC starter 1

309 Process tube 1

310 Nut M6 4

311 Spring 4

312 Screw M5x10 2

313 anti-vibration gasket cover 4

314 Compressor anti-vibration gasket 4

315 Nut M4 2

316 spring 2

317 Fan motor ZCF-200 1

318 Fan-cool condenser 1

401 Screw M4x22 2

402 Connector box cover 1

403 Connector box support 1

404 Power cord retainer base 1

405 Power cord 1

406 Power cord retainer 1

407 Screw M4x20 2

408 Connector box holder 1

409 Screw M4x20 2

Exploded View of TSD-47CF

CHEST FROZEN SHOWCASE

TSD-47CF/TSD-60CF

Exploded View of TSD-60CF

CHEST FROZEN SHOWCASE

TSD-47CF/TSD-60CF

CHEST FROZEN SHOWCASE

CHARACTERISTIC

TSD-47CF/TSD-60CF

Parts Name Picture Check Method and Criterion

Compressor
Model :TSD­47CF/TSD­60CF

Measure the resistance with a tester.
(Ambient temperature : Room temperature 25

Model Main Wiring

～

2.9

DONPER
EU1121BZ

160 WATTS

Normal

Abnormal

2.5
(Approx.)S

Open( ∞ Ω ) or Short Circuited ( 0

Ω

)

Measure the resistance with a tester.

°

c)

Auxiliary

Wiring

Ω

4.1

～

4.7Ω

(Approx.)S

PTC Starter
Model : TSD­47CF/TSD­60CF

Overload
Protector
Model : TSD­47CF/TSD­60CF

compressor
capacity

TROUBLE SHOOTING

Thermostat

PTC Starter

(Ambient temperature : Room temperature 25
Model

Normal

Abnormal

(3.8Ω～5.6Ω, Max current 18A/180V)

Open(

∞ Ω

) or Short Circuited ( 0 Ω )

°

QP2-4.7C

c)

Measure the resistance with a tester.
(Ambient temperature : Room temperature 25
Model

Less than 1

Normal

current

Abnormal

Ω

(Approx.) Cut temperature:115-125

℃ ;Close temperature:70-52℃;

：27A;UTC(Min action current):3.36A/70℃

Open(

B85-105

∞ Ω

°

c)

Overload

)

Measure the resistance with a tester.
(Ambient temperature : Room temperature 25

Model

CBB60(15µF ±5%C,250V.AC 50/60Hz)

°

c)

Normal

Abnormal

Open(

∞ Ω

)

Repair Procedure

1. Set Thermo Knob to OFF position, pull & straightened feeler
bulb

2. Remove Thermostat cover and pull out Thermostat from
Thermo Box

3. Short the thermostat terminal and check, if compressor runs.

4. Replace thermostat

5. After replacing Thermostat, reverse steps above.

Repair Procedure

1. Release Relay Cover Fixing Clip.

2. Remove Relay Cover.

3. Remove PTC Starter

4. Pull out PTC Starter, check if open and compare value of
resistance with given value, if not

5. Hold receptacle terminal then pull electrical wire from PTC
Starter.

6. Replaces PTC Starter (change overload protector together),
reverse the steps above.

CHEST FROZEN SHOWCASE

TSD-47CF/TSD-60CF

Repair Procedure

1. Check for continuity on overload protector, if open

Overload Protector

2. Pull out Overload Protector.

3. Hold receptacle terminal then pull electrical wire from Overload
Protector.

4. Replace overload protector.

Cause Check Point Correction

Repair Procedure

Compressor

Check coils
resistances

1. Replace compressor if measured resistances differ from given standard

2. Abnormal noise

Repair Procedure

1. Operate unit for 10 minutes with thermostat set at maximum

Not cooling

Check thermostat
setting

Repair Procedure

Insufficient cooling Check gasket gap

1. Check if gap can be resolved by adjustment of door hinges fixing screws.

2. Defrost if accumulation of frost is more than 10mm.

Repair Procedure

Malfunction due to
leaks or clogged
system

Charged (purge) with
nitrogen into the
refrigeration system
& check for leaks on
welds or clogs

1. Check for clog or leak in the cooling system.

2. Repair or replace the clogged or leak section.

3. Evacuate and change filter dryer.

4. Purge with nitrogen to clean and check for leaks

5. Recharge refrigerant, test run and seal system

TROUBLE INSPECTION CAUSES REMEDY

No Power

No Light

Check electric power
supply voltage

Check electrical circuit

Check lamp

Open circuit breaker or
fuse

Open Fuse Replace
Worn out or defective A/C

cord
Open Replace

Fix or replace

Replace

Check lamps socket

Low Cooling Check for thermo setting Setting too low Set thermostat higher

Defective Cooling
System

Check Overload Protector Check for continuity Replace if open.

Check leaks

Check Thermostat

Check PTC starter
resistance against given
value

Check for leaks

Check Compressor
resistance against given
specification

Check Pipe System

Corroded

Deform or warp door
gasket.

Poor weld on joints

Over storage or load or
heavy frost accumulation

Check if compressor runs
by shortening thermostat

Open, no resistance or
differ from given value

Leaks or poor welds on
joints

Defective

Clogged Pipe System or 1. Evacuate then Purge

Replace

Adjust door hinges fixing
screws

Repair, purge with
nitrogen re-charge
refrigerant and test run.

Reduce or re-arrange
load or defrost unit

Replace thermostat if
compressor runs.

Replace PTC starter.

Repair, re-weld, purge,
evacuate and recharge
refrigerant

Replace, weld, purge,
check for leaks and re­charge refrigerant, test run
and seal system

CHEST FROZEN SHOWCASE

TSD-47CF/TSD-60CF

oil choke with nitrogen to remove

clogs

2. Repair or replace
clogged section, evacuate,
purge, check leak and re­charge refrigerant. Test
Run and seal system