HMS INMBSHIT016O000, User Manual, Page: 21 / 24

Intesis
TM
Home Automation (WMP)
– Hitachi VRF
User Manual r1.0 EN
© HMS Industrial Networks S.L.U. - All rights reserved
This information is subject to change without notice
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://www.intesis.com
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8.
Error codes for Indoor and Outdoor Units
This list contains all possible values shown in WMP
for “Error Code” for each indoor unit and outdoor unit.
It must be taken into account that Outdoor Units are only able to reflect a single error for each indoor / outdoor unit
in the system. Thus, a unit having two or more active errors from that list will only report a single error code
– the
one of the first error that has been detected.
Error
Code Category Content of Abnormality Leading Cause
01
lndoor Unit Activation of Protection Device (Float
Switch)
Activation of Float Switch
(High Water Level in Drain Pan ,
Abnormality of Drain Pipe , Float Switch
or Drain Pan)
02
Outdoor Unit
Activation of Protection
Device (High Pressure
Cut)
Activation of PSH (Pipe
Clogging
, Excessive
Refrigerant! lnert Gas
Mixing)
03
Transmission
Abnormality between lndoor and
Outdoor
incorrect Wiring , Loose Terminals ,
Disconnect Wire , Blowout of Fuse ,
Outdoor Unit Power OFF
04 Abnormality between lnverter PCB
and Outdoor PCB
lnverter PCB - Outdoor PCB
Transmission Failure (Loose
Connector
, Wire Breaking ,
Blowout of Fuse)
04. Abnormality between Fan Controller
and Outdoor PCB
Fan Controller - Outdoor PCB
Transmission Failure (Loose
Connector
, Wire Breaking ,
Blowout of Fuse)
05 Supply Phase Abnormality Power Source Phases
lncorrect Power
Source
, Connection to
Reversed Phase , Open-
Phase
06
Voltage
Abnormal lnverter Voltage Outdoor Voltage Drop , insufficient Power
Capacity
06. Abnormal Fan Controller Voltage Outdoor Voltage Drop , lnsufficient Power
Capacity
07
Cycle
Decrease in Discharge Gas Superheat
Excessive Refrigerant! Charge ,
Failure of Thermistor , lncorrect
Wiring , lncorrect Piping
Connection , Expansion Valve
Locking at Opened Position
(Disconnect Connector)
08
lncrease in Discharge Gas
Temperature
lnsufficient Refrigerant!
Charge
, Pipe Clogging,
Failure of Thermistor ,
lncorrect Wiring ,
lncorrect Piping Connection ,
Expansion Valve Locking at Closed
Position (Disconnect Connector)