Henny Penny Understanding Error Codes and Troubleshooting for HHC-990 and HHC-993

				Model HHC-990
5-2. ERROR CODES AND
WARNINGS (Continued)
	Display		Cause	Panel Board Correction
“E-6B	AIR TEMP SENSOR	• Faulty air temperature		• Turn switch to OFF position, then back to
	FAILED SHORTED”		probe	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 PC board
				replaced
“E-12A	WATER HEATER	•	Faulty water	• Turn switch to OFF position, then back to
	SENSOR FAILED		heater probe	ON; if the display shows “E-12A”, the
	OPEN”			water heater should be checked and
				repaired or replaced (the water heater
				probe is built into the water heater); the
				controls should return to normal; if
				“E-12A” persists, have PC board replaced
“E-12B	WATER HEATER	•	Faulty water	• Turn switch to OFF position, then back to
	SENSOR FAILED		heater probe	ON; if the display shows “E-12B”, the
	CLOSED”			water heater should be checked and
				repaired or replaced (the water heater
				probe is built into the water heater); the
				controls should return to normal; if
				“E-12B” persists, have PC board replaced
“E-17	HUMIDITY SENSOR	• Faulty humidity sensor		• Turn switch to OFF position, then back to
	FAILED”			ON; if the display shows “E-17”, the
				humidity sensor should be checked;
				once the humidity sensor is repaired, or
				replaced, the controls should return to
				normal; if “E-17” persists, have PC board
				replaced
“E-18	NO WATER, FLOAT	• Float switch stuck or		• Turn switch to OFF position, then back to
	SWITCH FAILED”		faulty; faulty relay	ON; if the display shows “E-18”, check
			(stuck on);water pan	and clean float switch; clean water pan;
			needs cleaned;	have relay and water heater sensor
			loose or faulty water	checked and replace if necessary; tighten
			heater sensor; acorn nuts	acorn nuts on water heater cover; make
			on water heater cover	sure 2 complete pieces of insulation are
			loose, or water heater	under the water heater cover; if “E-18”
			insulation missing or	persists, have PC board replaced
			damaged

A humidity error only shuts down the humidity system. If a humidity error occurs, and you want to use the cabinet without humidity, turn the humidity off by following the directions for SP-4, Humidity Setpoint, in Special Programming Section of this manual. Once the setpoint is off, the alarm stops, but the error code shows in display. (Includes “E-12A”, “E-12B”, “E-17” and “E-18”).

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