Frymaster BIELA14 manual Problem, Probable Causes, Corrective Action, 1-19, “E” and “vat number

Problem	Probable Causes		Corrective Action
		A. Ensure the CAN bus system is terminated at
			BOTH ENDS (on the M3000 connector J6
			and on the ATO board connector J10) with a
			resistor equipped 6-pin connector.
		B. With the computer OFF, press TEMP button
			and ensure the AIF version appears. If not,
			the 24V to the AIF boards may be missing.
			Ensure all 6-pin CAN connectors are tight
			between the M3000 (J6 and J7), MIB (J1
			and J2), AIF (J4 and J5) and ATO (J10)
			boards.
		C. With the computer OFF, press TEMP button
			and ensure the ATO version appears. If not,
			check the CAN wire harness between the
			AIF board J4 or J5 and the ATO board J9 or
			J10. The ATO fuse on the right side of the
			ATO box may be loose or blown; the 110V
			to the ATO transformer may be missing or
			the transformer bad. The J4/J5 connector
			may be loose. Is the right computer
			functioning? If not the fuse below the
			contactor box may be loose or blown.
MIB board alternating	Network error on the CAN bus	D. Check to see if MIB has 24V on pins 5 and
“E” and “vat number			6 of J2. Check to see if 24V is present on
	communication.
and side”.			pins 5 and 6 of wire harness plugging into J4
			or J5 of the first AIF board. If 24V missing,
			check the pins. Replace the harness if
			necessary.
		E. Check continuity between each color wire
			on the CAN connectors into J7 on the far
			right computer and J10 on back of the ATO
			board (black to black, white to white, and
			red to red), and ensure there is no continuity
			between different color wires (black to red,
		F.	red to white, and white to black).
			Ensure black computer locator wires are
			connected from ground to correct pin
			position (see drawing 8051734 page 1-55).
		G. Ensure all boards have the corner ground
			wire attached and tightened.
		H. The locator pin in J2 of the AIF board is
			either loose or in the incorrect position. See
			the charts on page 1-55 of this manual for
		I.	proper pin position.
			Bad MIB and/or AIF board.
		J.	Broken resistor lead. Unwrap the resistor
			leads and check ends.

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