Frymaster LOV M3000 - Manual (Page 9)

LOV ™ Generation II Technical Reference
8
Problem Probable Cause Corrective Action
Auto fi ltration
won’t start.
Filter pan out of position.
Oil Level is too low.
Ensure MIB board is not in
manual mode.
Ensure MIB cover is not
damaged and pressing
against buttons.
Filter relay has failed.
AIF disable is set to YES,
blue light doesn’t light.
Filter motor thermal switch
is tripped.
AIF clock enabled. 1.
2.
3.
4.
5.
6.
7.
8.
Ensure fi lter pan is fully inserted into fryer.
Ensure oil level is above the oil level sen-
sor.
Ensure MIB board is in “A” automatic
mode.
Remove and replace cover and see if fi ltra-
tion will start.
Replace fi lter relay with part number 807-
4482 24VDC relay.
Set AIF disable in Level 1 to NO.
Press fi lter motor thermal switch.
Ensure AIF clock is set to disabled. 1.
2.
3.
4.
5.
6.
7.
8.
MIB display shows
something other
than an “A” or vat
number.
An error has occurred and
displayed character indicates
error. See MIB display diagnostics on page 46 for
explanation.
No power present
at the MIB board Transformer has failed in left
component box.
Check output on the left transformer in left
component box; should read 24VAC. If not
replace transformer.
MIB will not clear
error. Error remains in non-volatile
memory.
Press and hold reset button in top right cor-
ner for fi ve seconds. The drain, return and
manual/auto LEDS will illuminate and the MIB
will reset and clear any remaining errors from
memory. Allow 60 seconds to reset. If an error
still exists, then another issue exists.
MIB indicates in-
correct number of
vats.
Ensure the CAN bus system is terminated at
BOTH ENDS
(on the M3000 connector J6 and
on the ATO board connector J9) with a resistor
equipped 6-pin connector.
Unplug and reseat all wiring harnesses in
CAN system. Resistance between pins
2 and 3 on the CAN network connectors
should be 120 ohms.
Check software version numbers on all
M3000 computers and ensure all display
an AIF version. If an AIF version is miss-
ing, the AIF board may be missing power.
Check pins 5 and on J4 and J5 of the af-
fected AIF board for proper voltage.
The locator pin in J2 of the AIF board is
either loose or in the incorrect position.
See the chart on pages 47 of this manual
for proper pin position. •
•
•
Troubleshooting the Manual Interface Board (MIB)