Alto-Shaam Vector VMC-H2 Service Manual

TROUBLESHOOTING
Vector™ H Seri es ▪ Serv ic e M anua l ▪ MN- 4654 4 ▪ Re v 01 ▪ 1 1/19
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Is there 12VDC out of the power supply between the
positive and negative side terminals?
No
Replace the faulty power supply.
Yes
Is there 12VDC at the interface board? Is the green
LED light on the board near the J12 illuminated?
No
Inspect the wiring between power
supply and the interface board for
broken, open, or lose connections.
Repair any issues found and retest.
Yes
Is there 12VDC at J21 on the interface board between
pins 1 and 2?
No
Make sure all the pins on the Molex
connector are fully depressed into
place. Fully secure the connector in
the J21 port. If the connections are
good, replace the interface board.
Yes
Is there a momentary 12VDC reading between pins 2
and 3 on J21 when the ON/OFF board is pressed?
Does a second LED light illuminate on the interface
board near the J12?
No
Replace the ON/OFF board.
Yes
Is SW1 on the interface board in the OFF position?
No
Move to the OFF position and cycle
power.
Yes
Is the black light and LCD interface cable securely
connected to the interface board and the display?
No
Secure the cable connections and
retest.
Yes
Is there 12VDC out to the LCD at the backlight
connection between the red and black wires?
No
Replace the interface board.
Yes
Is the display on?
No
Replace the display.
Yes
The oven is ON.

Alto-Shaam Vector VMC-H2 Specifications

General

Brand	Alto-Shaam
Model	Vector VMC-H2
Category	Oven
Language	English