E21Manitowoc
Manitowoc E21 Error Code
T1 temperature sensor fault
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Other Manitowoc Error Codes
E01
Long freeze cycle exceeded limit
E02
Long harvest cycle exceeded 3.5 minutes
E03
Input power loss detected
E04
High condenser temperature
E05
High pressure control opened (HPCO tripped)
E07
Starving TXV or low refrigerant charge
E08
TXV fault - flooding or valve issue
E09
Evaporator #1 flooding
E10
Evaporator #2 flooding (dual circuit)
E11
Refrigeration fault or curtain fault
E12
Curtain switch fault - open for 12+ hours
E15
Fan cycle control fault / low liquid line temp