75
c l i m a t e m a s t e r.c o m
Trilogy
®
Q-Mode
®
(QE) Series IOM - 60Hz HFC-410A
R e v i s e d : D e c e m b e r 2 2 , 2 0 2 1
Code
Fault
Mode
Possible Cause
Solution
65
Current Sensor Warning
Mitsubishi Inverter 0930
HT, CL
Damaged Inverter board
Replace inverter board.
***WARNING - Inverter board capacitors maintain high voltage for up
to 15 minutes before fully discharging.
Carel Inverter 1860
HT, CL
Loss of data in memory
Reset alarm. In case of persistence, call for assistance.
HT, CL
Overload CPU
Reset alarm. In case of persistence, call for assistance.
HT, CL
Loss of data in memory
Reset alarm. In case of persistence, call for assistance.
HT, CL
Irreparable damage to the
internal “redundancy” circuit of
the STO function
Permanent damage, contact service for replacement.
HT, CL
Driver electronics damaged
Permanent damage, contact service for replacement.
HT, CL
Driver electronics damaged
Permanent damage, contact service for replacement.
HT, CL
Malfunction/Internal fault
Reset alarm. In case of persistence, call for assistance.
HT, CL
Irreparable damage to the
internal circuit
Permanent damage, contact service for replacement.
HT, CL
Current measurement chain
damaged (sensors, op amps,
shunts, ..)
Permanent damage, contact service for replacment.
HT, CL
DCbus current measurement
chain damaged (sensors, op
amps, ..)
Permanent damage, contact service for replacement.
66
Heat Sink Thermistor Error
HT, CL
Damaged Inverter board
Replace inverter board.
***WARNING - Inverter board capacitors maintain high voltage for up
to 15 minutes before fully discharging.
67
Current Sensor Error
HT, CL
Damaged Inverter board
Replace inverter board.
***WARNING - Inverter board capacitors maintain high voltage for up
to 15 minutes before fully discharging.
68
Lack of Inverter COMM /
Initialization
ALL
Faulty control cable CN4
Check continuity on harness between Inverter Interface Module
and CN4
ALL
Faulty control cable CN2
Check continuity on harness between Inverter Interface Module
and CN2
ALL
Faulty 5 V power supply on
Inverter Interface Module
Check C and OUT for 4.75-5.25 VDC
ALL
Faulty 15 V power supply on
Inverter Interface Module
Check GND and 15V for 14.25-15.75 VDC
ALL
Faulty 18 V power supply on
Inverter Interface Module
Check GND and 18V for 17.50-19.00 VDC
ALL
Damaged Inverter board
Replace inverter board.
***WARNING - Inverter board capacitors maintain high voltage for up
to 15 minutes before fully discharging.
69
Low Voltage Shutdown -
Inverter
Mitsubishi Inverter 0930
HT, CL
Low input voltage
Check input voltage
HT, CL
Incorrect compressor wiring
Check wiring from drive to compressor
HT, CL
Incorrect wiring between CN2
and Inverter Interface Module
Check wiring from drive to Inverter Interface Module
HT, CL
Damaged Inverter board
If DC bus voltage stays below 200V, replace drive board.
***WARNING - Inverter board capacitors maintain high voltage for up
to 15 minutes before fully discharging.
Carel Inverter 1860
HT, CL
The DC voltage of the
intermediate circuit is below
the limits envisioned due to:
•
insufficient power supply
voltage
• fault inside the drive
In the event of temporary cut-off of the power supply, reset the alarm
and re-start the drive. Check the power supply voltage.
Table 16: Troubleshooting (Cont.)
