Power Supply Boards - Electrolux CEI30EF5GS Service Manual

The EOC and ESEC system are powered by separate power supply boards that are mounted on the
rear of the range chassis just below the EOC as seen in photo A.
The two Power Supply Boards are identical however one board is designated as PS 1 and the other
is PS 2 on the wiring diagram. PS 2 provides the power supply to the EOC while PS 1 powers the
ESEC system. Wire harness connections and colors are identical on both boards and it does not
matter which board is connected to the EOC or ESEC system however the length of the wiring
harness will only allow both harnesses to be connected in one orientation.
Incoming voltage to the boards should be approximately 120 VAC at P1. Output voltage should be
approximately 8 VDC at P2.
Always test the incoming and outgoing voltage at the power supply boards when troubleshooting
EOC or ESEC control failures.
PS 2

Power Supply Boards

If there is a failure in the PS 1 (ESEC) power supply board or wiring the ESEC system display will not
illuminate and the surface elements can not operate. Additionally there will likely be an F20 failure
code displayed on the EOC display after several seconds.
If there is a failure in the PS 2 (EOC) power supply board or wiring the EOC display will not illuminate
and the oven components and other devices can not operate. The ESEC system may still allow the
surface elements to operate even though the EOC does not .
POWER SUPPLy BOARDS
Photo A
EOC Board
PS 1
Power Supply Board (PS1 or PS2) Test Points
Connector P1 pins 1 & 4 - 120 vac
Connector P2 pins 1 & 5 - 8 vdc
NOTE: All voltages are approximate.
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POWER SUPPLY BOARD