McQuay M5LCX Especificaciones descargar pdf (Pagina 15)

Blink Fault Indication Corrective Action

1 Outdoor ambient sensor error Check ambient sensor wire and connection

2 Outdoor coil sensor error Check coil sensor wire and connection

Discharge sensor error / Compressor overheat

indication

Check discharge sensor wire and connection /

Not enough refrigerant / Indoor overload

4 DC compressor feedback Call local dealer

5 Communication error Check interconnection communication wire

6 Over current Call local delaer

7 No load Check compressor wire and connection

8 Over / under voltage Check power supply

9 DC compressor start failure Call local dealer

10 Cooling overload Check whether outdoor unit is blocked or not

11 Defrost Wait till defrost is over then restart

12 IPM Protection Check IPM

13 EEPROM read error Change EEPROM

14 EEPROM write error Change EEPROM

15 DC fan motor no feedback Check fan motor wire connection

Blinks Blinking indication

1 Normal running, with no limitation

2 Voltage limit

3 Heating unit : Indoor cooil temperature limit

4 Total current limit

5 Discharge temperature limit

6 Cooling unit : Indoor coil temperature limit

7 Indoor fan control

8 Outdoor frequency adjustment

Compressor Stopped Special Instruction

Normal Running Mode Condition

If the air conditioner unit has no faulty indication and the compressor is running at normal mode, the

outdoor P.C. board’s LED indication will blink at a slower paste. The table below shows the significant

meaning of different running mode and limitation for this air conditioner unit.

One must not attemp to see the LED indication blinking unless intructed to do so.

Keep the main power supply ON

Open up the outdoor unit’s top panel

Count the number of blinks indicated

by the LED

Notice the Green LED on the outdoor P.C. board

DO NOT TOUCH ANY OF THE WIRES

INSIDE THE UNIT!

*If the problem persist, contact your local delaer straight away.

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McQuay M5LCX Especificaciones Pagina 15