Diagnostic Troubleshooting - Prince Castle 411-SD Serie Manual Del Usuario

When a part or parts fail in the 213, 416 or 411 Solid State Toasters an ERROR CODE will flash in the display (see figures
below) and an audio alarm will sound. The troubleshooting chart below will explain each error code and what action to
take to determine which component has failed. A "0" on the left means there is a lower circuit failure, a "0" on the right
means there is a upper circuit failure.
E10
UPPER CIRCUIT FAILURE
Problem
Lower platen over heating.
Upper platen over heating.
Both platens over heating.
Problem
Lower probe open.
Upper probe open.
Both probes open.
Problem
Lower platen over heating.
Lower probe open.
Upper platen over heating.
Upper probe open.
Both platens over heating.
Both probes open.
Solid State Toaster Diagnostic Chart
Upper Heat
Indicator Light
Lower Heat
Indicator Light
Diagnostic Codes
EO1
E1O
E1 1
Diagnostic Codes
EO2
E2O
E2 2
Diagnostic Codes
EO3
E3O
E33
9
E01
LOWER CIRCUIT FAILURE
Corrective Action
With platen heat indicator light off, if voltage
across terminals 3/A1 and 4/A4 of the
corresponding relay is greater than 2.5 volts,
the printed circuit board is inoperable.
Turn power off and disconnect line cord,
disconnect the wire lead from terminal 2/T1 of
the corresponding relay.Measure the resis-
tance across 2/T1 and 1/L1, if resistance is
less than 50K ohms, the corresponding relay
is inoperable.
Corrective Action
Disconnect the corresponding probe and
measure the probe resistance.
The corresponding probe is inoperable if:
The platen temperature is less than 25°C
and the resistance is greater than 1100 ohms.
The platen temperature is less than 100°C
and the resistance is greater than 1381 ohms.
The platen temperature is less than 200°C
and the resistance is greater than 1744 ohms.
IMPORTANT NOTE: If the probe resistance
is correct, check the corresponding probe
connection on the printed circuit board. If the
connection is secure, the printed circuit board
is inoperable.
Corrective Action
Go to failures 01 and 02 above for
corrective action steps to take for a
03 error code.
Go to failures 10 and 20 above for
corrective action steps to take for a
30 error code.
Go to failures 11 and 22 above for
corrective action steps to take for a
33 error code.
Upper Heat
Indicator Light
Lower Heat
Indicator Light