McQuay M5HDC Especificaciones descargar pdf (Pagina 36)

M5HDC-2010

Troubleshooting

Error Code

Heatpump Model (Universal Board)

Operation / Faulty Indication

Room sensor contact loose / short

Indoor coil sensor contact loose

Outdoor coil sensor contact loose

Compressor overload / Indoor coil sensor short /

Outdoor coil sensor short

Gas leak

N/A

Outdoor defrost (for Heatpump ony)

Error Code at 7 Segment Display

Blink E1

Blink E2

Blink E3

Blink E4

Blink E5

Blink E6

Blink Heat LED

Fault Condition

1. Fan does not work 3 minutes after

starting

• Protection against the frequent starting. Wait 3 or 4 minutes.

2. The air conditioning unit does not

work

• Power failure or need to replace the fuse.

• The power plug is disconnected.

• Possibility of making a programming error in the controller.

• If the fault persist after these verifications, contact your installer.

• The air filter is dirty.

• The doors or windows are open.

• The air entrance and exit are c

logged.

• The reg

ulate temperature is not high enough.

4. The remote control light is deficient

• The batteries are discharge.

• The batteries are not correctly inserted.

• The assembly is not good.

5. Air discharge flow has a bad odor

• This odor can be caused by cigarette smoke particles, perfume,

sweat, which stick to the coil.

• Check if there is any moisture on the walls, garment, other.

• Check the drain pan.

6. Condensation on the air grille of

indoor unit

• This is due to air hum

idity after a long time of operation.

• The unit has a lower temperature point, increase the point and

operate at high speed.

7. The water flow of air conditioning

unit

• Check the condensate evacuation.

8. The air conditioning unit are noisy

• “Air flow noise” : refrigerant fluid admission in evaporator.

When any air-conditioner malfunction is noted, immediately switch off the power supply to

the unit, and contact the local dealer, if necessary. Some simple troubleshooting tips are

given below :

Fault

Cause

3. The air conditioning unit does not

blow sufficiently

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