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Controller Alarms
Code Icon Display
Alarm
Relay Buzzer Description
rE
flashing on on virtual control probe fault
E0
flashing off off bottle probe fault
E1
flashing off off defrost probe fault
E2
flashing off off condenser probe fault
LO
flashing on on low temperature alarm
HI
flashing on on high temperature alarm
dEF
on off off defrost running
LP
flashing on on pressure alarm
CHT
flashing on on high condenser temperature alarm
EE
flashing off off E²prom error, unit parameters
EF
flashing off off E²prom error, operating parameters
The Extreme 4000 is ready to operate out of the box with a
factory set point of 55°F.
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