Hoshizaki rf28a 補足マニュアル

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2. Alarm Details and Countermeasures
a) High Temperature Alarm (E1)
If the cabinet temperature exceeds the setpoint temperature by 18°F (10°C) or more for 
more than x minutes, "E1" is displayed. The default value of x is "2" (120 minutes). The 
value of x can be changed under F3 on the Settings and Diagnostics Menu. (0=0; 1=60; 
2=120; 3=180 minutes)
Note:
• After the machine has been turned off and then turned back on, the high 
temperature alarm feature is not active until the cabinet temperature reaches the 
lower setpoint temperature differential.
• The high temperature alarm feature operates even during defrost.
Reset Options
The alarm will automatically reset once the cabinet temperature reaches the lower 
setpoint temperature differential. 
Possible Causes
• The door is opened frequently or is not completely closed.
• Trouble with the compressor or a gas leak.
• Trouble with the cabinet thermistor (black).