EN
Cod. 3QE46220 - Rev. 01 - 10/2020
RUBINO PLUS
27
2.6 FAILURE DISPLAY
When there is failure in the unit operation the code of failure will be displayed. The following table describes the error messages
represented by the code displayed on the Indoor Display. It should be noted that some error codes are specific only in conjunction
with unit single Split or Multi-Split
Table. 1 - Error
Error Code on
Display
Error description
Notes
EH00/EH0A
Indoor unit EEPROM parameter error
Allarm
EL01
Indoor/outdoor unit communication error
Allarm
EH02
Zero-crossing signal detection error
Allarm
EH03
The indoor fan speed is operating outside of the normal range
Allarm
EC51
Outdoor unit EEPROM parameter error
Allarm
EC52
Condenser coil temperature sensor T3 is in open circuit or has short circuited
Allarm
EC53
Outdoor room temperature sensor T4 is in open circuit or has short circuited
Allarm
EC54
Compressor discharge temperature sensor TP is in open circuit or has short circuited Allarm
EC56
Evaporator coil outlet temperature sensor T2B is in open circuit or has short
circuited(for free-match indoor units)
Allarm
EH60
Indoor room temperature sensor T1 is in open circuit or has short circuited
Allarm
EH61
Evaporator coil middle temperature sensor T2 is in open circuit or has short circuited Allarm
EC07
The outdoor fan speed is operating outside of the normal range
Allarm
EH0b
Indoor PCB/Display board communication error
Allarm
EL0C
Refrigerant leakage detection
Allarm
PC00
IPM malfunction or IGBT over-strong current protection
Temporary protection
PC01
Over voltage or over low voltage protection
Temporary protection
PC02
Top temperature protection of compressor or High temperature protection of IPM mo-
dule or High pressure protection
Temporary protection
PC04
Inverter compressor drive error
Temporary protection
PC08
Current overload protection
Temporary protection
PC40
Communication error between outdoor main chip and compressor driver chip
Temporary protection
PC03
Low pressure protection
Temporary protection
--
Indoor units mode conflict(match with multi outdoor unit)
Allarm
Some errors are reported by the display but do not generate the shutdown of the unit. It 'should report in every case to Technical
Assistance. Some alarm can be caused by the poor maintenance of the units. It is recommended to perform this procedure before
ask for the Technical Assistance. Some error codes may not be shown in the table. Contact technical support.
Note for Multi Split applications
In case of simultaneously operating mode requested, any incompatibility will be signaled by the symbol P5. The
system generally ensures priority to units set to Heat.
Table. 2 - Compatibility Table
Unit 2 setting (Unit turning on)
Cool
Heat
Dry
Fan
Unit 1 setting (Unit On)
Cool
Non
Yes (1)
Non
Non
Heat
Yes (2)
Non
Yes (2)
Yes (2)
Dry
Non
Sì (1)
Non
Non
Fan
Non
Sì (1)
Non
Non No
(1): unit 1 turns off
(2): unit 2 does not switch on
Summary of Contents for RUBINO PLUS
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