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The Key/Display Test verifies the function of displays, LEDs
and buttons on the control panel.
Enable Test Mode.
Press any key.
If necessary, index to the Key/Display menu.
Press and hold the Setpoint key for 3 seconds to index
to each test menu until the controller displays “dSP”.
Press any key to clear all displays.
Repeatedly press any key to test displays.
With each key press, a new segment of all six 8-segment
LEDs and a select group of LED indicator lights will illu-
minate.
Exit the test and enter the next test.
Press and hold the Setpoint key for 5 seconds to exit
and index to the next test.
KEY/DISPLAY
TEST
microKool Portable Chillers UGH004/0999
5-8 MAINTENANCE
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