22
SERVICE PRECAUTIONS
Connect the charging hose (that is connected to the refrigerant (R600a) cylinder) to the
Schrader valve installed on the service tube. Then, charge the refrigerant (R600a) by
controlling the Throttle valve. When you do so, do not fully open the Throttle valve
because it may make damage to the compressor. Gradually charge the refrigerant
(R600a) by changing open and close the Throttle Valve (5g at each time). The charging
hose must use a one-way
valve to prevent the refrigerant re-fluency. Close the Schrader valve cap after the
refrigerant (R600a) is completely recharged.
After you completely recharge the refrigerant (R600a), perform the leakage test by
using a portable leakage detector or soapy water. Test the low pressure (suction) parts
in compressor off time and high pressure parts in compressor on time. If the leakages
are found, restart from the refrigerant (R600a) discharging process and repairs defects
of leaks.
After the leakage test, check the temperature of each parts of the cycle. Check with
hands if the CONDENSER and the case (HOTLINE pipe) that is contacted to the door
gasket are warm. Confirm that frost is uniform distributed on the surface of the
EVAPORATOR.
Air Recharging in Compressor
TROUBLESHOOTING
Summary of Contents for FF250L
Page 1: ...FROST FREE REFRIGERATOR Service manual VZ34 VZ29 VZ26 ...
Page 3: ...VIDEOCON REF FF250L VIDEOCON REF FF280L VIDEOCON REF FF330L MODEL VZ26 MODEL VZ29 MODEL VZ34 ...
Page 7: ...4 EXPLODED VIEW AND PART DETAILS ...
Page 26: ...23 TROUBLESHOOTING OTHER ELECTRIC COMPONENTS ...
Page 31: ...28 PCB DETAILS ...
Page 32: ...29 PCB DETAILS ...
Page 33: ...30 PCB DETAILS SWITCHING POWER SUPPLY CIRCUIT ...
Page 34: ...PCB DETAILS 31 RESET CIRCUIT DOOR SWITCH CONTROL CIRCUIT ...
Page 35: ...PCB DETAILS 32 FAN CONTROL CIRCUIT LIGHTING CIRCUIT ...
Page 36: ...PCB DETAILS 33 DAMPER CONTROL CIRCUIT COMMUNICATION CIRCUIT ...
Page 37: ...34 PCB DETAILS ...
Page 38: ...35 PCB DETAILS TEMPERATURE CONTROL CIRCUIT LOAD OUTPUT CIRCUIT ...