Frymaster H55 Series Technical Reference Manual page 75

FilterQuick 3000 OQS Error Codes
Code Message
E70 OQS Temp High
E71 OQS Temp Low
E72 TPM Range Low
E73 TPM Range High
E74 OQS Error
E75 OQS Air Error
E76 OQS ERROR
E77-E80 N/A
Automatic Filtering Fryers
4-31
Description
Oil temperature is too high. Filter between
300ºF and 375ºF.
Oil temperature is too low. Filter between
300ºF and 375ºF.
The TPM is too low. This may be seen with
new oil. The incorrect oil type may be se-
lected in the setup menu. The sensor may
not be calibrated for the oil type. See oil
type chart in instruction document 8197316.
If issue continues contact an FAS.
The TPM reading is too high. Dispose the
oil.
The OQS has an internal error. If issue
continues contact an FAS.
The sensor is detecting air in the oil. Check
the O-rings and check/tighten prescreen
fi lter to ensure no air is entering the OQS
sensor. If issue continues contact an FAS.
The OQS sensor has a communication er-
ror. Check connections to the OQS sensor.
Power cycle the entire fryer battery. If issue
continues contact an FAS.