Frymaster BIH52 - Manual (Page 51)

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3.8.3 Troubleshooting the Temperature Probe
While it is still in the
frypot, inspect probe
body for damage.
Remove and replace if
bent, dented or cracked.
Inspect leads for fraying,
burning, breaks, and/or
kinks. If found, replace
probe.
Determine temperature of
cooking oil/shortening using
a thermometer or pyrometer
placed at tip of probe.
Is resistance through
J3 pins 2 and 6 (J1 pins 2 and 6 for
left side of dual vat) approximately equal to
that given in Probe Resistance Chart for
the corresponding temperature?
Measure resistance through
each of the previously tested
pins to ground.
Yes
Is resistance
5 megaohms or greater in
each pin?
Probe has failed. No
Problem is not
with probe.
Yes
No
Note: Disconnect computer before measuring probe resistance.