Hitecsa EWFAIB, Installation, Operation And Maintenance Instructions, Page: 33 / 49

32
6 -
EWFAIB
Control
6.7 Alarm list
CODE DESCRIPTION ALARM ORIGIN
E01 Return water temperature probe failure
UNIT BOARD
E02 Leaving water temperature probe failure
E03 Outdoor air temperature probe failure
E05 Outdoor coil temperature probe failure
E06 Water flow / pump motor alarm
E08 Fan motor alarm
E12 Low pressure alarm by logic
E22 Stop defrost for maximum time excess
E23 Stop defrost for minimum LWT (‹10 °C)
E24 Discharge gas temperature › Discarghe gas temperature limit
E25 Low pressure alarm by LPS cut-out
E32 Alarm - LWT/EWT reverse sensors
E33 Alarm - high
¨
T (LWT-EWT)
E37 Alarm - EWT/LWT antifreeze
E38 Return water temperature ›Return water temperature limit
E50 Discharge gas temperature probe failure
E51 Suction gas temperature probe failure
E52 Suction gas pressure probe failiure
E53 Compressor start-up failure
E60 Driver auto-tune fault
COMPRESSOR DRIVER
E61 Driver over voltage
E62 Driver under voltage
E63 Driver DC ripple too large
E64 Driver over current
E65 Driver over temperature
E66
Driver thermistor fault
E67 Driver under temperature
E68 Flash memory error
E69 Hardware over current
E70 Modbus communication lost
E71 Motor overload
E72 Inverter offline
E73 Parameter default
E74 Motor over temperature
E75 Motore phase
E76 Speed default
E77 Fan default
E78 Communication loss
E79 High discharge pressure
E80 Start-up failure (resume)
E81 Enevelope alarm
E82 High discharge temperature
E83 Low pressure difference (lack of lubrication)
E84 Suction gas pressure probe failure
EEV DRIVER
E85 Suction gas temperature probe failure
E86 Discharge gas pressure probe failure
E87 Discharge gas temperature probe failure