Computer Control; Operation; Service Programming; Error Messages - Vulcan-Hart GRC35 Service Manual

GR SERIES GAS FRYERS - SERVICE PROCEDURES AND ADJUSTMENTS

COMPUTER CONTROL

Operation

Refer to the Installation & Operations manual for specific operating instructions.

Service Programming

The computer control's "service programming" mode is used to perform system diagnostic tests or edit "program items"
that affect the fryers operation.
NOTE: If a product key is active (timing), service programming can not be entered.

Error messages

For information on computer control error messages, refer to "COMPUTER CONTROL" under "TROUBLESHOOTING".

Enter Service Mode

1. Press "V" key and enter password (default, 1972); Use product key numbers (1-9, & 0) to enter values.
A. SERVICE is displayed in left window & the LED's above product key's 1, 2, 4, 5, 6, 7 & 8 come on.
B. Beeper chirp's on each successful keypress; If a key is not pressed within 2 minutes, the computer will
automatically exit service programming (except in diagnostic or more service programming).
2. To exit a PROGRAM ITEM after making a selection, press "V" to accept and return to service programming.
3. To exit SERVICE PROGRAMMING and return to operation mode, press "V" key twice.
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F-25114 Rev.A (07-03)