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IV. Troubleshooting
WARNING
1. This unit should be disassembled or repaired only by a qualified service
technician to reduce the risk of injury, electric shock, or fire.
2. Do not make any alterations to the unit. This could cause water leak, electric
shock, or fire.
3. To reduce the risk of electric shock, do not touch the attachment plug or
power switch with damp hands.
4. In case of insufficient refrigeration performance, move the stored food
product into another unit to prevent its deterioration.
A. Alarm Code Appears in Display
1. TempGuard Models
If an error occurs, the alarm code and cabinet temperature are displayed in 2-second
intervals and an alarm sounds. When an error occurs, check the error code and follow
the instructions below.
Alarm Signals
Alarm Code
Alarm
Sound
Problem
Reset Options
E1
3 beeps
every ten
seconds
High Temperature Alarm
Cabinet temperature has exceeded the
setpoint temperature by 10°F (5.6°C) for
more than 2 hours.
Press "RESET."
If the temperature has returned to the
setpoint range, the alarm will be silenced
and "E1" will clear.
If the temperature has not returned to the
setpoint range, the alarm will be silenced
for 5 minutes and "E1" will continue to
flash.
If obvious corrections such as closing
doors and cleaning the air filter and/or
condenser do not bring temperature
back in range, call a qualified service
technician.
E2
4 beeps
every ten
seconds
Low Temperature Alarm
Cabinet temperature has remained below
the setpoint temperature by 8°F (4.4°C)
for more than 1 hour.
Press "RESET."
If the temperature has returned to the
setpoint range, the alarm will be silenced
and "E2" will clear.
If the temperature has not returned to the
setpoint range, the alarm will be silenced
for 5 minutes and "E2" will continue to
flash.
If obvious corrections do not bring
the temperature back in range, call a
qualified service technician.
