A.J. Antunes & Co MT-12 9200148 - Manual (Page 8)

8 P/N 1010918 Rev. E 03/13
DIAGNOSTIC FLOW CHART
Turn toaster on, toaster
performs self-test
Toaster Passes Self-
test
Both indicator lights flash and an Audio
Signal beeps twice to indicate success-
ful self-test
Heats to more than 105°F (65°C)
but less than 750°F (400°C) in 30
minutes
BEEP CODES
2 Beeps = Voltage too low
3 Beeps = Toaster temperature more than 750°F
(400°C) after 30 minutes
4 Beeps = Toaster temperature less than 150°F (65°C)
after 30 minutes
5 Beeps = Thermocouple disconnected or broken
NOTE: All beep codes are followed by a 2 second
pause, then repeated.
IMPORTANT
Beep Codes
(errors) can occur any
time during operation.
Less than 150° F (65°C) (Control
turns solid state relay off). Audio
signal beeps 4 times, waits 2
seconds, beeps 4 times, waits 2
seconds, and continues until unit
is turned off
More than 750°F (400° C) (con-
trol turns solid state relay off)
Audio signal beeps 3 times, waits
2 seconds, beeps 3 times, waits 2
seconds and continues until unit
is turned off
Refer to
Troubleshooting
Yes
Yes
Yes
No
No No
Heats to more than 105°F (65°C)
but less than 750°F (400°C) in 30
minutes
Yes
Door is opened during cook cycle
- Audio Signal beeps once every
second door is open
No
Door is open for more than 8 consecutive seconds
during cook cycle - Audio Signal beeps very
rapidly 15 times - cook cycle is automatically
cancelled.
No
Yes Yes
Toaster times-out for:
Partial Load (85-125 sec) or
Full load (90-130 sec.)
Unit beeps 2 times per second until front door is opened.
NOTE: Push partial load control knob to turn off partial load light.
Product is too
light
No
Product is too
dark
No
Refer to Troubleshooting
Yes
Product toasted properly
Yes