13-13
TROUBLESHOOTING
SM CKDDCI 2-A.3 GB
13.5
Procedures for checking Main Parts
13.5.1
Discharge DC Voltage
13.5.2
Checking Line Mains Voltage
Confirm that the Mains voltage is between 198 and 253 VAC. If Mains voltage is out of this range,
abnormal operation of the system is expected. If in range, check the Power (Circuit) Breaker and
look for broken or loosed cable lugs or wiring mistakes.
13.5.3
Checking Line Filter Board
1) Check for any burn signs on the filter board and its coils and relays, replace if any.
2) Check voltage at the inlet and outlet of the line filter. If no output voltage, replace line filter.
3)
GC 036 DCR only
- In case of burnt main fuse in line filter – replace
both
Line filter
and
driver
.
Replacing line filter - (
14.1.19
)
13.5.4
Checking Inrush Circuitry (only for GC 36-43 DCI)
1) Check continuity of each wire on the inrush wiring cable – repair if needed.
2) Power ON the unit, check voltage between both of the inrush pins on the ODU main board –
should be 0 at first and 12VDC after 1 minute. A click sound should also occur after 1 minute.
If no voltage – replace ODU main Board.
3) While power is off check resistance between line input and line output in the filter board
– should be 200
. Turn on the power and check again, after 1 minute (after the click should be
0
. If not, the resistor is burned - replace Line filter.
4) Disconnect the inrush connector (red) from the line filter controller and Connect 9V battery to
pins 1 and 3 (Non-polarity). A click sound should occure. If not, the relay is burned - replace Line
filter.
2)
Inrush connector pin check
3)
Inrush resistor check
4)
Inrush connector pin check
Replacing line filter - (
14.1.19
)
Replacing main board - (
14.1.13
)
13.5.5
Checking Compressor Driver
13.5.5.1
GC 36-43 DCI
Remove all the terminals of the driver before checking.
If items
1)
to
11)
are performed and the results are satisfactory, driver is normal.
High voltage!!!
Wait for DC voltage to be discharged before
re touching any part of the driver to
avoid electric shock.
Check to ensure that DC voltage has reduced to below 50VDC, if not, keep
waiting until it does.
INRUSH
12
