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8. TROUBLE ANALYSIS & SHOOTING
*Refer to the trouble analysis section of user s manual for non-faultreason.
Table 1: check and root out cooling system troubles
Table 2: circuit checksheet for irregular run
Drop a dirb of water on the evaporator to
see if it is iced after 20 minutes run.
Check the leaking place and add
refrigerant after vacuumizing.
Check
Item
Startup voltage
When other parts work well
Damaged motor and compressor
PTC. relay
Compressor motor (deputy
windings) conducting test
Broken wire Change compressor
Change compressor
Damaged Change relay
Too low voltage Voltage up (mount stablizer)
Reason Solution
Root out
`
`
Test on
compress
working status
Normal run
Run failure
Break down
No cooling
Temperature
setting
Too low (set higher)
Malfunctional sensor
Loose gasket (clean soils or change it)
Evap. frost (defrost)
Change PCB and
confirm single
Change E-
magnetic valve
Inferior cooling
Unable to
shut Ref
Fre cooling
No Ref cooling
(under the normal mode)
E-magnetic reversion
failure or control single
not found
E-magnetic reversion
failure or control single
not found
Check the cooling system (see figure1)
Check the electric circuit (see figure 2)
Check the electric circuit (see figure 3)