GE PFE29PSDASS Manual page 33

Fresh Food Showcase Pin-Point LEDs
The Pin-Point LEDs are in either a 5 or 7 LED series circuit.
If one LED fails (but the LED's resistor is still OK), that LED will not be lit
while the others will be dim.
When one LED fails completely, none of the LEDs will light.
With a voltmeter, 5VDC – 20VDC can be read across the terminals of the
completely failed LED assembly.
To remove the LED, pry up at the rear and slide to rear to release the tab.
Each LED has a 2-pin connector for easy replacement.
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5/4/2012