Jenn-Air Service Manual page 39

POWER SUPPLY DIAGNOSTICS
Check for line voltage inputs and outputs per label on top of the power supply.
1. LINE INPUT
• With main power switch ON check for line input on input terminal.
2. DC OUTPUT
• Check for +12VDC and +26VDC output on output terminal.
• Check for +12VDC on main control terminals JP11-3,2
• Check for +26VDC on main control terminals JP11-3,1
• If voltage is “Pulsing” in a repetitious manner there is probably an overload condition on the output side
of the power supply.
Remove JP7
If “Pulsing” persists test JP7 harness for short circuits (JP7-15, & JP7-15,16)
If “Pulsing” stops remove JP11.
If “Pulsing” persusts replace power supply.
If “Pulsing” stops replace main control.