REMKO SuperTec-Monitor - Manual (Page 21)

Fault code display
Description
LED 1 (green) LED 2 (red) Display
Flashes 3 times
Flashes
once
U2
Hot gas temperature sensor
Internal thermostat of compressor motor 49C was triggered.
Refrigerant level
U7 Hot gas overheating too low
Flashes
twice
U1
High pressure switch 63H was triggered
UE
UL Low pressure switch 63L was triggered
Flashes 3
times
Ud Overheating protection function
Flashes 4
times
U6
Circuit breaker on the condenser (overload)
Fault in the power module
UA
Circuit breaker on the condenser (thermal overload relay)
Thermal overload relay is triggered
Only for models with a three-phase power supply
UC Condenser switched off by internal protection function
UF Condenser blocked, overcurrent protection device was triggered
UP Overload protection device was triggered
UH Fault on the current sensor
Flashes 5
times
U3 Fault on the hot gas temperature sensor TH4
U4
Fault on the line temperature sensor of the outdoor unit TH3
Fault on the heat exchanger temperature sensor of the outdoor unit TH6
Fault on the outdoor air temperature sensor of the outdoor unit TH7
Fault on the inverter cooling block temperature sensor TH8
Flashes 6
times
U5 Temperature fault on inverter cooling block
Flashes 7
times
U6 Fault in power supply
21