Chapter 4. Testing and Troubleshooting
PELLERIN MILNOR CORPORATION
Chapter
4
Testing and Troubleshooting
BICEXT01 (Published) Book specs- Dates: 20040120 / 20040120 / 20040120 Lang: ENG01 Applic: CEX
4.1. Error Codes
If the machine control detects an error, the
Minutes Remaining
window flashes an error code
corresponding to the condition, and the
Machine Status
window flashes
E
(to notify the customer
that an error occurred) or
U
to signal the customer to unload the machine. Figure 13 illustrates the
two display windows important in troubleshooting error codes. The displays in Section 4.1.2
“Explanations of Error Codes” show only the contents of the
Minutes Remaining
window.
Tip:
All error codes result from micro-controller inputs being present or absent under certain
conditions. Refer to Section 4.2. “Controller Inputs and Outputs” and the appropriate schematics
and service manuals for this machine when diagnosing errors.
Figure 13: Error Code Display
Example Error
Legend
A.
Minutes Remaining
window
B.
Machine Status
window
.
4.1.1.
How to Clear Error Conditions
Some error conditions, such as
E4
(
Too Long to Fill
) clear automatically when the conditions
which caused the error are rectified. These errors require no intervention to return the machine to
normal operation.
Other errors require that the attendant clear the error before the machine can resume normal
operation. To clear these errors, the authorized personnel must turn the
Attendant
keyswitch from
the normal (vertical) position shown in Figure 14 to the
Attendant
(horizontal) position shown in
Figure 15, then back to the normal position.
The attendant should never leave the key in the
switch or anywhere it's accessible to customers.
