Haier HYC-610 Procedure to Test the Alarm System, Trouble Shooting Guide, Solution, Operation

Operation

Alarm, Safety, and Auto-diagnostic Features

This unit is equipped with all features listed in Table 2. Additionally, it also has auto-diagnostic features.

Table 2, Alarm and Safety Features

Alarm or Safety Refrigerator Behaviors		Alarm Methods and	Buzzer Alarm
		Indication
High	Either upper sensor or	Alarm light flashes
Temperature	lower sensor reaches		Buzzer alarm sounds
	10 and warmer
Low	Either upper sensor or
	lower sensor is below	Alarm light flashes	Buzzer alarm sounds
Temperature
	2
		Temperature display	After the time of
	The unit lost power or	shows for 60 seconds,losing power exceeds
Loss of power		and stops showing	72 hours, buzzer
	the power switch is off.
		for 120 seconds. The alarm sounds.
		process repeats until
		power is on again.
Door ajar	Outer door is slightly	After a 10-minute	After a 10-minute
		delay, alarm light	delay, buzzer alarm
	open or wide open.
		flashes.	sounds.
	Upper temperature	Alarm light flashes.
		Temperature display
	sensor circuit shorts		Buzzer alarm sounds.
	or opens.	shows “E1”.
	Lower temperature	Alarm light flashes.
	sensor circuit shorts	Temperature	Buzzer alarm sounds.
		display shows
	or opens.
		“E2”.
Abnormal		Alarm light flashes.
sensor	Defrost sensor circuit
		Temperature	Buzzer alarm sounds.
performance	shorts or opens.
		display shows
		“E3”.
	Over temperature	Alarm light flashes.	Buzzer alarm sounds.
	sensor circuit shorts or	Temperature display
	opens.	shows “E4”.

Rechargeable battery Alarm light stays has low voltage, or on. Display shows

there is no circuit . temperature normally.

Operation

Note: Remote alarm contact and buzzer alarm work together. When the refrigerator is in alarm mode, the remote alarm contact can be disconnected by pushing the buzzer button. If the unit is in the alarm mode due to loss of power, the remote alarm contact remains in the alarm mode. This condition persists until the power is resumed. All alarms will automatically stop once the problem is corrected. If the alarm condition is not corrected within 30 minutes, the buzzer alarm and remote alarm contact are activated again. In the case of losing power, a fully charged battery can support the alarm system for 72 hours. For a newly started refrigerator or a refrigerator that has been unplugged for a long time, you should make sure the battery is fully charged. This charging process can take up to two days. When the battery discharges, the remote alarm contact continues to function.

Procedure to Test the Alarm System

Push the “Alarm Test” button once. The alarm buzzer sounds three consecutive times in 1 Hz frequency. At the same time, the alarm light also flashes three consecutive times and the remote alarm contact opens and closes for three times. The alarm system functions properly.

This blood bank refrigerator should be cared for by dedicated personnel. The operational status of the unit should be inspected and recorded daily. If the temperature runs toward over-temperature condition, you should transfer the stored products to another refrigerator. The products are only allowed back in the original unit only when operating errors are corrected.

Trouble Shooting Guide

Problem	Solution
	1.Inspect fuse blocks.
Unit stops operating.	2.Check that the cord is securely plugged into the power outlet.
	3.Inspect for problems associated with control wires.
	4.Make sure the voltage is not too low.
	1.Inspect to see if the unit is overloaded or products with warm temperature
	have been loaded into the unit.
	2.Make sure there is an air gap between products.
Unit's refrigeration is	3.Check to make sure the unit is not in direct sunlight or subject to any heat
	radiation.
not effective.
	4.Investigate to see if there have been frequent door openings.
Temperature tends to
operate out of range.	5.Investigate to see if the environment temperature is too high.
	6.Inspect air channels to see if they are blocked.
	7.Check the condenser air filter to see if it is clogged with dirt.
	1.Make sure the unit is placed on a level floor.
The unit is too noisy.
	2.Make sure any part of the unit does not touch a wall or any object.
	1.If warm blood products are just loaded to the unit, allow ample time for the
	temperature to recover. The alarm signal cancels when the temperature
Alarm light flashes,	recovers to normal level.
alarm buzzer sounds.	2.Inspect the door to make sure it is shut properly. Door ajar alarm can sound
	if the door is slightly opened.
	3.There might be insufficient power supply. Let it run for some time to recover.
	4.Check the temperature of the unit to see if it is in over-temperature condition.