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sensitivity for each product button has ten settings, 0-9. Setting sensitivity to “0” will disable the feature
completely, while a setting of “9” will provide the highest sensitivity or most change. The correct sensitivity
for any product is based on the type of product, its density, the setpoint temperature, and the customer’s
own requirements. A generic sensitivity chart is located on Page 1-5 of the Frymaster Fryer Controllers
manual (P/N 819-5916).
Recovery—or “rate of rise”— is a method of measuring a fryer’s performance. It is the time required for
the fryer to increase the oil temperature from 275°F to 325°F (135°C to 163°C). This range is the standard
since ambient kitchen temperatures can affect the test if lower ranges are used. The Computer Magic
computer controller performs the recovery test each day as the fryer heats-up. An operator can view the
results of the test any time the fryer is above 325°F (163°C) by pressing the
button and entering the
code 1652. The test results display in the computer’s LED panel in minutes and seconds. The acceptable
recovery time is 2:30 or less. Extended recovery is a sign that the fryer is not being regularly maintained
or it is in need of servicing. The recovery time lengthens as fryer health declines. This is a useful tool for
gauging the condition of the fryer and should be checked regularly.
Common Computer Complaints
Most problems with Computer Magic controllers stem from programming issues. There are four common
complaints.
1. Fryer constantly displays HI.
Cause: Incorrect, low, or missing setpoint.
Fix: Press
1650, enter the correct setpoint using the keypad, then press to lock-in the new
setpoint.
2. Fryer constantly displays temperature.
Cause: The computer has been programmed to constantly display the temperature.
Fix: Press 165L.
3. Fryer displays temperature in Celsius.
Cause: The computer has been programmed to display in Celsius rather than Fahrenheit.
Fix: Press
1658.
4. Computer times down too slowly or too quickly.
Cause: The computer is compensating for oil temperature via the sensitivity setting.
Fix: Reprogram the sensitivity setting for each product by following the programming instructions in
the Installation and Operation manual or the Frymaster Fryers Controllers manual (P/N 819-5916).