INSTRUCTION MANUAL
EZA11K Series
TDK-Lambda
<Page>
17.
Fan Life Expectancy
The Fan-life expectancy is about 6 years at 50 degree C intake-air temperature.
Therefore, periodic maintenance by exchanging the life-expired fan is required for the converter.
Fan replacement service will be a charge, please contact your local TDK-Lambda sales office.
18
．
Before concluding that the unit is fault
(1)Check if the rated input voltage connected.
(2)Check if the wiring of input and output is correct.
(3)Check if the wire thickness is enough.
(4)Check if the built-in FAN is not stopped. Is FAN stopped by something irregular? If FAN stops, heavy alarm
is triggered.
(5)The converter has ventilating holes on the front and rear panels. Check if there is any irregulars or dust, etc.
(6)Is this chassis of converter abnormally hot? The output might shut down by OTP operation. Please re-start
after allowing time for the unit to cool down sufficiently.
(7)Check if the output current and output wattage does not over specifications.
(8)Audible noise can be head during dynamic load operation.
19
．
Range of free warranty
This product warranted for a period of 5 years from the date of shipment. For a breakdown under a normal use
during free warranty term repair is a free of charge. However replacement of the built-in fan is chargeable. Please
contact your local TDK-Lambda sales office for FAN replacement.
24/24
Converter
50mm
Measurement point
F
A
N
Air Flow
Front
Rear
The following cases are not covered by warranty:
（
1
）
Improper usage like dropping products, applying shock and defects from operation exceeding
specification of the unit.
（
2
）
Defects resulting from natural disaster (fire, flood).
（
3
）
Unauthorized modifications or repair by the user, defects not cause by TDK-Lambda.
