Oqs (Oil Quality Sensor) Troubleshooting - Frymaster FilterQuick FQG30 Service Manual

1.18.9 OQS (Oil Quality Sensor) Troubleshooting

Problem
No TPM results
displayed.
Controller does not
display OQS software
version.
Probable Causes
A. Temperature too low or too high.
B. Loose pre-screen filter.
C. Missing, cracked or worn O-rings.
D. Dirty filter paper.
E. TPM too high.
F. Error code.
A. Loose or damaged harness.
B. Defective OQS sensor.
Corrective Action
Check the following items A-E and
perform another OQS filter.
A. Ensure the vat is at setpoint
temperature.
B. Inspect the pre-screen filter and
ensure it is screwed in tightly.
C. Inspect the O-rings on the filter
pan and ensure they are both
present and that they are not
missing, cracked or worn. If so
replace them.
D. Ensure the filter paper is not
clogged and clean filter paper is
used. Did the vat refill the first
time for the previous filter? If not
change the filter paper.
E. Dispose of the oil.
F. Check error log for any OQS
errors E70-76. See explanation and
solution in section 1.18.4.
A. Check
controllers and OQS sensor are
secure. Ensure 5VDC is present
on pins 4 & 6 of J6 and J7 of the
controller.
broken pins/wires. If the problem
persists, cycle power on the fryer.
B. Defective OQS sensor.
1-55
harnesses between
Check for loose or