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TROUBLE SHOOTING

 

-11-

Fault phenomenon 

Possible cause for faults 

Inspection scope 

Removal 

Notes: 

No input 

voltage 

existing 

Poor contact between the plug 

and the socket 

Inspect whether the plug and the 

socket are loose 

Repair or replace the socket  Call an electrician 

for repair 

White indicator 

lamp not 

operating 

Poor contact with the white 

indicator lamp 

Inspect whether the connector 

assembly is loose 

Insert the connector assembly 

tightly 

 

Input voltage 

existing   

White indicator lamp damaged 

Remove the white indicator lamp 

Replace 

 

Poor contact between the pink 

indicator lamp and the plug 

foot 

Inspect whether the connector 

assembly is loose 

Insert the connector assembly 

tightly 

opening 

pink indicator lamp damaged 

Remove the pink indicator lamp 

Replace 

Call professional 

for repair 

No put the temperature 

controller to operating state 

position 

Inspect the temperature controller 

Put to the operating state position 

as per consideration for use 

Pink indicator 

lamp not 

operating 

Poor contact with the 

temperature controller 

Inspect whether the connector 

assembly is damaged 

Insert the connector assembly 

tightly 

 

Compressor set 

not opening 

Temperature controller 

damaged 

Inspect whether open circuit 

exists in two connector 

assemblies 

Replace the temperature controller 

 

Too mush frosting on 

evaporator 

Inspect whether thickness is more 

than 2mm 

Remove the frost timely 

 

Over-high frequency of 

opening the door 

 

Reduce the frequency of opening 

the door as much as possible 

 

Too mush articles in the case 

Inspect whether it is possible to 

impact the circulation of cool air. 

Take some food out 

 

Over-temperat

ure in the case 

Refrigerating fluid leaking 

 

Repair in a maintenance point 

 

machine set 

operating 

continuously 

Over-high ambient 

temperature and too low 

temperature of the temperature 

controller 

Inspect whether the knob is put 

on Positions    “2-4” or forced 

cooling 

Adjust the knob to Positions   

“2-4” 

 

Temperature in 

the case 

reached 

 

Temperature controller fault 

 

Replace the temperature controller 

Case no keep flat 

Inspect whether four castor 

wheels touch ground 

Cushion timely 

Retaining screws of the compressor loosening 

Inspect whether the screws are 

screwed down. 

Screw the screws down 

Call professional 

for repair 

Pipelines contacting 

 

Separate the pipeline 

Starting relay and thermal protection 

connector assembly loosening 

Inspect whether the connector 

assembly is damaged 

Insert the connector assembly

tightly 

Compressor damaged 

 

Repair or replace the compressor 

Call professional 

for repair 

Excessive noise, 

red and green 

indicator lamps 

operating, and 

compressor not 

operating 

Voltage less than 187V 

Inspect supply voltage 

Connect a voltage stabilizer over 

1000V 

 

If the supply cords are damaged, in order to avoid danger, replacement of the supply cords must be carried out by the manufacturer or its maintenance 

department

Note: the following phenomenon is not the fault phenomenon 
1. Slight gurgle exists in the temperature-changeable freezing refrigerator occasionally;  
2 The compressor and the condenser emit heat, even scald hands; 
3 It is possible to generate water bubbles outside the refrigerating cabinet when the ambient temperature is higher. 
4 The heat of 50 Celsius degree exists outside the temperature outside. 

 or similar full-time staff, and it is not allowed to replace without authorization.   

Содержание GCS165SV

Страница 1: ...CHEST FREEZER SERVICE MANUAL CAUTION BEFORE SERVICING THE UNIT READ THE SAFETY PRECAUTIONS IN THIS MANUAL COLOR PCM Super White MODEL GCS165SV http biz lgservice com ...

Страница 2: ...ent applying parts unplug prior to servicing 3 If testing with power on wear rubber gloves to prevent electric shock 4 Be sure to check regular current voltage and capacity 5 Don t touch metal products in a cold freezer compartment with wet hands It may cause frostbite or other injury 6 Prevent water flowing to electric elements in mechanical parts 7 When tilting the set remove any materials on th...

Страница 3: ...linder and must add 165 grams to the group this amount will be reached when R134a has dropped to 585 grams remembering that the indicator shows a lower limit of meniscus Do this after choosing the scale corresponding to the gas pressure different scales reported as the same gas pressure indicated by the pressure gauge on the top of the column To make R134a flow into the system open the valve place...

Страница 4: ...ing TEMPERATURE CONTROL Knob Dial DEFROSTING SYSTEM Heater Defrost Heat preservation Cyclopentane REFRIGERANT R134a 90 g ITEMS SPECIFICATIONS Capillary Drier 1 EA LOCK ASSEMBLY 1 EA Manual owners 1EA Card warranty 1EA Key 2EA Cover Glass Manual assembly owners 1EA COMPRESSOR PTC Starting Type EVAPORATOR Fin Tube Type CONDENSER Ref No GCS165SV SPECIFICATIONS ...

Страница 5: ...ponent hold the fixture on the upper part of the temperature control panel to push the temperature control component outwards the case from the compressor cabinet hold and lift upwards the top of the temperature control panel to remove the temperature control component from the case after pushing 2 Removal of the temperature control knob pull the temperature control knob from the temperature contr...

Страница 6: ...mal operation of the single phase induction motor in the starting operation flows in both main coil and sub coil After the starting is over the current in subcoil is cut off The proper features of PTC play all the above roles So PTC is used as a motor starting device 3 PTC Applied Circuit Diagram According to Starting Method for the Motor 4 Motor Restarting and PTC Cooling 1 For restarting after p...

Страница 7: ...sed for the Refrigerator and Show Case and prevents the Motor Coil from being started in the Compressor 2 Do not turn the Adjust Screw of the OLP in any way for normal operation of the OLP Composition and connection Diagram of OLP CONTACTING POINT COVER BIMETAL CONTACTING POINT HEATER TERMINALS ADJUST SCREW HEATER BIMETAL Figure 20 CIRCUIT DIAGRAM CIRCUIT DIAGRAM BN BROWN BL BLUE RD RED BK BLACK G...

Страница 8: ...use a regular Trans Replace Compressor OLP works within 30 sec in forcible OLP operation by turning instant power on and off Components start in the voltage of Rating Voltage Applied voltage isn t in the range of Rating Voltage Check the resistance among M C S C and M S in Motor Compressor Check the resistance of two terminals in PTC Starter Check if applying a regular OLP Measure minimum starting...

Страница 9: ...dge Figure 21 Separate the Relay Assy from the Compressor and check the resistance value between two terminals of OLP with a Tester Observation value is 220V 50Hz 22Ω 30 115V 60Hz 6 8Ω 30 240V 50Hz 33Ω 30 127 220V 60Hz 22Ω 30 The resistance value is 0 or serveral hundreds Ω The value is Check another electric components Replace Relay Assy Check another electric components Replace Relay Assy 2 2 e ...

Страница 10: ... of motor Compressor Replace the compressor Replace each component Raise the voltage Replace each component Cause Check if current flows to starting devices Check current flowing in sub coil of Compressor Check capacity of OLP The items described above are normal Much frost are sticked to the EVAPORATOR Shorted Replace the Heater Sheath Replace each component Check current flowing of the following...

Страница 11: ...culation of cool air Take some food out Over temperat ure in the case Refrigerating fluid leaking Repair in a maintenance point machine set operating continuously Over high ambient temperature and too low temperature of the temperature controller Inspect whether the knob is put on Positions 2 4 or forced cooling Adjust the knob to Positions 2 4 Temperature in the case reached Temperature controlle...

Страница 12: ...LODED VIEW 200A 200B 205B 205A 205A 315A 314A 208B 208B 310B 310B 310B 310B 315B 207A 207B 207C 207D 212A 213A 213B 213C 214A 307A 306B 309A 310A 308A 300A 306D 300B 303A 216A 216B 201A 201B 301B 303D 311C ...

Страница 13: ......

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