Frymaster EH1721 SERIES ELECTRIC FRYERS, Operator Troubleshooting, Problem, Probable Causes

EH1721 SERIES ELECTRIC FRYERS

CHAPTER 5: OPERATOR TROUBLESHOOTING

5.2.2 Error Messages and Display Problems

Problem	Probable Causes	Corrective Action
Display is in wrong		Computers may be programmed to
		display in either Fahrenheit or Celsius.
temperature scale	Incorrect display option programmed.
		Refer to the computer manual that
(Fahrenheit or
		shipped with the fryer for instructions
Celsius).
		on changing the display.
CM III.5		Verify that the drain valve is fully
or		closed. The fryer will not function if
Digital Controller	Open drain valve or problem with	the drain valve is not fully closed. If
display shows HELP.		the drain valve is fully closed, the
	latching circuitry.
CM4-S and KFC-1		problem is within the latching
display shows		circuitry and is beyond the scope of
OPEN DRAIN		operator troubleshooting. Call FASC.
		This display is normal if the fryer
		setpoint has been changed to a lower
		temperature. The display should
	Fryer is more than 21°F (12°C) above	revert to the normal four dashes when
Display shows hi.		the frypot temperature cools to the
	setpoint.
		setpoint. If the setpoint has not been
		changed, this indicates a problem with
		the temperature control circuitry.
		Turn the fryer off and call FASC.
CM III.5
or		This in an indication of a malfunction
Digital Controller
display shows hot.	Frypot temperature is more than 410°F	in the temperature control circuitry,
CM4-S and KFC-1	(210°C) or, in CE countries, 395°F	including a failure of the high-limit
	(202°C).	thermostat. Shut the fryer down
display shows HI-
TEMP or HI-Temp		immediately and call FASC.
probe failure.
		This display is normal when the fryer
		is first turned on and may appear for a
		short while if a large batch of frozen
		product is added to the frypot. If the
CM III.5		display never goes out, the fryer is not
		heating. Look for a decimal in the
or	Frypot temperature is more than 21°F	LED display between digits 1 and 2.
Digital Controller		If the decimal is present, the computer
	(12°C) below setpoint.
display shows lo.		is calling for heat and is functioning
		properly. See Fryer Does Not Heat in
		Control and Heating Problems
		(Section 5.2.1). If the decimal is not
		present, the computer is not calling for
		heat and may be malfunctioning. Shut
		the fryer off and call FASC.

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