Alto-Shaam AR-7T Service Manual

TROUBLESHOOTING
Self -Cle ani n g Ro tis se rie Ove n ▪ Ser v i ce M anual ▪ MN- 392 4 3 ▪ Rev 1 ▪ 2/ 19
54
Measure the voltage across the L terminal of power
supply PS1 and the load side of fuse F2. Does the
voltage correspond to the voltage printed on the
serial number tag?
No
Replace the fuse F2.
Yes
Measure the voltage across the L terminal and the N
terminal of power supply PS1. Does the voltage
correspond to the voltage printed on the serial
number tag?
No
Repair or replace the wiring from
the load side of fuse F2 to the power
supply PS1.
Yes
Measure the DC voltage across the + (Plus) and –
(Minus) terminals of the power supply PS1. Is the
voltage 12 VDC?
No
Replace the power supply PS1.
Yes
Measure the DC voltage across the + (Plus) terminal of
the power supply PS1 and line side of fuse F7. Is the
voltage 12 VDC?
No
Repair or replace the wiring from
the -
(Minus) terminal of power supply
PS1 and the line side of fuse F7.
Yes
Measure the DC voltage across the + (Plus) terminal of
the power supply PS1 and the load side of fuse F7. Is
the voltage 12 VDC?
No
Replace the fuse F7.
Yes
Measure the DC voltage across the + (Plus) terminal of
the power supply PS1 and pin 2 of the J2 connector on
the control board. Is the voltage 12 VDC?
No
Repair or replace the wiring from
the load side of fuse F7 and pin 2 of
the J2 connector on the control
board.
Yes
Measure the DC voltage across the - (Minus) terminal
of the power supply PS1 and line side of fuse F6. Is the
voltage 12 VDC?
No
Repair or replace the wiring from
the +(Plus) terminal of power supply
PS1 the line side of fuse F6.
Yes
Measure the DC voltage across the -
(Minus) terminal of the power supply PS1 and load
side of fuse F6. Is the voltage 12 VDC?
No
Replace the fuse F6.
Yes
Measure the DC voltage across the - (Minus) terminal
of the power supply PS1 and pin 1 of the J2 connector
on the control board. Is the voltage 12 VDC?
No
Repair or replace the wiring from
the load side of fuse F6 and pin 1 of
the J2 connector on the control
board.
Yes
Replace the control board.

Alto-Shaam AR-7T Specifications

General

Brand	Alto-Shaam
Model	AR-7T
Category	Oven
Language	English