Problem | Probable Causes | |
| A. Problem with the temperature | |
M3000 display shows | measuring circuitry including the probe. | |
B. Damaged computer wiring harness or | ||
TEMP PROBE | connector. | |
FAILURE. |
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MAINT FILTER | Temperature too low. | |
(Manual Filter) won’t | ||
start. |
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M3000 display shows | In | |
dropped that has a different setpoint that | ||
REMOVE DISCARD. | ||
the current vat temperature. | ||
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M3000 display shows | Failed computer, failed interface board, | |
HEATING | ||
FAILURE. | open | |
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Computer will not go |
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into program mode or | Failed computer. | |
some buttons do not | ||
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actuate. |
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M3000 display shows | Computer in | |
HI 2 BAD. | ||
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M3000 display shows |
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HELP | Failed | |
LIMIT FAILURE. |
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M3000 display shows |
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software for only | Loose or damaged harness | |
M3000 or MIB but not | ||
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all boards. |
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M3000 display shows | A. Three phase power cord unplugged or | ||
low temp, heating | B. | circuit breaker is tripped. | |
Blown fuse | |||
indicator cycles on and | |||
C. | Failed computer. | ||
off normally but fryer | D. | Damaged computer wiring harness. | |
does not heat. | E. | Open connection in |
Corrective Action
A. This indicates a problem within the temperature measuring circuitry. Check resistance of probe, if faulty replace probe.
B.Swap the computer wiring harness with one known to be good. If problem is corrected, replace the harness.
Ensure fryer is at setpoint before starting
MAINT FILTER.
Remove and discard product. Press a cook button under the display with the error to remove the error. Reset the setpoint of the vat before trying to cook product.
Turn off the vat with the issue. The error is displayed if the fryer loses its ability to heat oil. It is also displayed when the oil temperature is above 450°F (232°C) and the
Replace computer
This is displayed during a test of the high- limit circuit to indicate if the
This is displayed to indicate the
Check that all harnesses between M3000’s, MIB, AIF and ATO are secure. Ensure 24VDC is present on pins 5 & 6 of J2 on MIB board and on J4 or J5 of AIF board. Check for loose or broken pins/wires. If the problem persists, swap out computer from one bank to another and cycle power on the fryer.
A.Ensure all cords are fully seated in the receptacles, locked into place and that circuit breakers are not tripped.
B.Check three amp fuse on front of control box.
C.Replace computer.
D.Replace computer wiring harness.
E.Check high limit circuit starting at the control box connector working to the