42
TROUBLESHOOTING ECCO-PP, ECCO-PT
To help troubleshoot the oven you should perform the following “Manual Override” test:
Open drop down door located on the lower right side, directly below front panel.
Turn back up toggle (on/off) switch to “on” position.
Turn main power switch to “on” position.
Check oven for normal operation.
NO DISPLAY
PROBABLE CAUSE
CORRECTIVE ACTION
Defective Power Switch (-PP
only)
Confirm that toggle switch is getting correct voltage.
Check power switch for normal operation.
Defective Power Switch
output on circuit board
(JP37)
Confirm that JP37 has 5VDC in the off position and nominal voltage
in the on position.
If JP37 has a constant 5VDC check toggle switch for normal
operation.
Defective Control
Transformer
Confirm that 208/240VAC is feeding primary coil.
Confirm that 24VAC and 12VAC is at JP40 (24VAC across solid
yellow wires and 12VAC from one solid yellow wire to yellow with
red stripe).
Defective Display
Check ribbon cable connections.
Confirm that voltage is present at JP40.
If no voltage is present:
Replace control transformer.
If voltage is present:
Confirm that CPU has 5VDC at TP1 (this means that the CPU is
getting correct voltage).
Confirm that CPU has 12VDC at TP2 (this means that the CPU is
sending out the correct voltage).
If no voltage is present:
Replace CPU.
If voltage is present:
Replace display.
IMPORTANT NOTICE:
Power must be disconnected at source when disconnecting any ribbon cable or any
connector from CPU or Display. Failure to do so will result in damage to the Display board and CPU.
Summary of Contents for ECCO-T
Page 27: ...26 GENERAL CONT D ONE PAN TWO PAN THREE PAN FOUR PAN FIVE PAN https appliancetechmanuals com...
Page 53: ...52 WIRING DIAGRAM ECCO T 208 240 https appliancetechmanuals com...
Page 54: ...53 WIRING DIAGRAM ECCO T 480 https appliancetechmanuals com...
Page 55: ...54 WIRING DIAGRAM ECCO AP 208 240 https appliancetechmanuals com...
Page 56: ...55 WIRING DIAGRAM ECCO AP 480 https appliancetechmanuals com...
Page 57: ...56 WIRING DIAGRAM ECCO SII 208 240 https appliancetechmanuals com...
Page 58: ...57 WIRING DIAGRAM ECCO SII 480 https appliancetechmanuals com...
Page 59: ...58 WIRING DIAGRAM ECCO C 208 240 https appliancetechmanuals com...
Page 60: ...59 WIRING DIAGRAM ECCO C 480 https appliancetechmanuals com...
Page 61: ...60 WIRING DIAGRAM ECCO PP 208 240 https appliancetechmanuals com...
Page 62: ...61 WIRING DIAGRAM ECCO PP 480 https appliancetechmanuals com...
Page 63: ...62 WIRING DIAGRAM ECCO PT 208 240 https appliancetechmanuals com...
Page 64: ...63 WIRING DIAGRAM ECCO PT 480 https appliancetechmanuals com...