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b) Low Temperature Alarm (E2)
If the cabinet temperature drops below the setpoint temperature by 9°F (5°C) or more
for more than y minutes, "E2" is displayed. The default value of y is "1" (60 minutes). The
value of y can be changed under F4 on the Settings and Diagnostics Menu. (0=0; 1=60
minutes)
Note:
• The low temperature alarm timer starts once the cabinet temperature drops 9°F
(5°C) below the setpoint temperature.
• The low temperature alarm feature operates even during defrost.
Reset Options
The alarm will automatically reset once the cabinet temperature reaches the upper
setpoint temperature differential.
Possible Causes
• Ambient temperature is low.
• Trouble with the cabinet thermistor (black).
Summary of Contents for RF28A
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