Henny Penny HHC-990, HHC-997, HHC-993, HHC-992 Error Codes, Display Cause Panel Board Correction

			Model HHC-990
5-2.	ERROR CODES AND	The display shows the following error codes and warnings when a
	WARNINGS	fault is detected, along with an alarm sound. Both the heat and
		humidity systems shut down, except when specified otherwise.
	Display	Cause	Panel Board Correction
“E-4	CPU TOO HOT”	• Control board too hot;	• Turn switch to OFF position, then back to
		unit overheating or	ON; if display still shows “E-4”, the PC
		louvers clogged	board is getting too hot; clean louvers and
			check cooling fan; if cooling fan is not
			working, have it replaced; once panel
			cools down, the controls should return to
			normal; if “E-4” persists, have the PC
			board replaced
“E-5	AIR TEMP TOO HOT”	• Faulty relay, PC board,	• Turn switch to OFF position, then back to
		or air probe	ON; if display shows “E-5”, the heating
			circuits and temperature probe should be
			checked; once the unit cools down, the
			controls should return to normal; if “E-5”
			persists, have the PC board replaced
“E-54A CPU TEMP SENSOR		• Faulty PC board	• Turn switch to OFF position, then back to
	OPEN”		ON; if display shows “E-54A”, the
			control should be re-initialized (see Pro-
			gramming Section); if the error code
			persists, have PC board replaced
“E-54B CPU TEMP SENSOR		• Faulty PC board	• Turn switch to OFF position, then back to
	SHORTED”		ON; if display shows “E-54B”, the
			control should be re-initialized (see Pro-
			gramming Section); if the error code
			persists, have PC board replaced
“E-6A AIR TEMP SENSOR		• Faulty air probe	• Turn switch to OFF position, then back to
	FAILED OPEN”		ON; if the display shows “E-6”, the
			temperature probe should be checked;
			once the temperature probe is repaired, or
			replaced, the controls should return to
			normal; if “E-6” persists, have the PC
			board replaced

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