Hoshizaki REFRIGERATED PREP TABLE WITH RAISED RAIL 73168 Service Manual page 26

Alarm
Priority Problem
Signal
High Condenser Temperature Alarm
(clogged filter)
E7
6 Condenser temperature is outside of
normal operating temperature. 140°F
(60°C)
Defrost Thermistor Malfunction Alarm
E8 3
Defrost thermistor shorted or open.
Condenser Thermistor Malfunction
Alarm
E9 4
Condenser thermistor shorted or open.
EEPROM Write Alarm
EA
2
Control board has failed.
EEPROM Verification or Read Alarm
ED 1
Control board has failed.
Reset, Corrections, and Adjustments
Turn the power off, then back on.
Condenser and/or air filter dirty. Fan motor not
turning. Possible restriction in refrigeration system.
Failure to take action when this alarm activates
could result in damage to the compressor.
After replacing defrost thermistor, alarm resets.
After replacing condenser thermistor, alarm resets.
After replacing control board, alarm resets.
After replacing control board, alarm resets.
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