25
PCB damaged
Substitution method
Replace PCB
Machine does
not work
operation panel
no display
Transformer
damaged
Measure with
multi-meter
Replace transformer
Operation panel
lines not connected
well
Check the circuitry
Welding with soldering
iron
Operation panel
damaged
Substitution method
Replace operation panel
PCB damaged
Substitution method
Replace PCB
disturbed
Check the source of
interference
Clear the source of
interference
If the line
lengthened by the
non-shielded cable
Replace the line(use
shielded cable)
Fan does not
work
Fan blade is stuck
Check the fan blade
Clear foreign body
The sub
High
pressure(fan
uninstall) system’
pressure over
high
sub high pressure
switch damaged
Check the sub high
pressure
Replace(short it)
Too
much refrigerant
Check the pressure
Discharge some
refrigerant
Water system dirty
Check if filter is
installed
Clean water system and
install filter
Check water system
Clean
water system
Lack of water flow
Check filter
Clean filter
Water pump
damaged
Check water pump
Replace water pump
Water flow of water
pump is small
Measure the water
flow of water pump
Change a biger water
pump
Without
power
supply
Power cut off
Measure the
circuitry voltage
Wait for power supply
Circuit breaker
Check the circuitry
Connect the circuitry
PCB damaged (no
output)
Measure the output
voltage
Replace PCB
Transformer
damaged
Measure the
winding and output
voltage
Replace transformer
Capacitor
damaged
Capability become
smaller
Check the capability
of the capacitor
Replace the capacitor
Summary of Contents for BKDX30-95I/150/S
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Page 21: ...21 7 Wiring diagram 1 BKDX50 200I 150 S D 2 BKDX50 200I 150 YI D ...
Page 22: ...22 3 BKDX30 95I 150 S D 4 BKDX30 95I 150 YI D ...
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