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MASTER JET CF SERIES ATMOSPHERIC GAS FRYERS
CHAPTER 1: SERVICE PROCEDURES
1-25
1.9.4 Computer-Related Problems (cont.)
Recovery Time
Recovery time is a method of measuring a fryer’s performance. Put simply, it is the time required for
the fryer to increase the oil temperature from 250°F to 300°F (121°C to 149°C). This range is used
as a standard since ambient kitchen temperatures can affect the test if lower ranges are used.
The Computer Magic III.5 performs the recovery test each day as the fryer warms up. An operator
can view the results of the test any time the fryer is above the 325°F (163°C) point by pressing the
button and entering the code 1652. The test results will be displayed in the computer’s LED
panel in minutes and seconds. An acceptable recovery time for the MJCF Series fryers is 3 minutes,
30 seconds.
Common Computer Complaints
Most problems concerning computers have to do with programming them. There are four common
complaints. The complaints, their causes, and corrective actions are:
1. Fryer constantly displays "
".
Cause: Setpoint incorrect or missing.
Corrective Action: Press 1 6 5 0, enter the correct setpoint using keypad, press
again, then
press to lock in the setpoint.
2. Temperature is displayed in Celsius.
Cause: Computer is programmed to display in Celsius.
Corrective Action: Press
1 6 5 8.
3. Temperature is constantly displayed.
Cause: Computer is programmed for constant temperature display.
Corrective Action: Press 1 6 5 L.
4. Computer times down too slowly or too quickly.
Cause: Computer is compensating for oil temperature via the sensitivity setting.
Corrective Action: Reprogram sensitivity setting for each product in accordance with
programming instructions in the Frymaster Fryer Controllers User’s Manual that shipped with
the computer.