Troubleshooting - McQuay MWSC 010 Series Manual

Troubleshooting

When any malfunction of the conditioner unit is noted, immediately switch off the power supply to the unit. Check the
following fault conditions and causes for some simple trouble shooting tips.
FAULT
1. The compressor does not start operation after 3
minutes from starting the air conditioner unit.
2. The air conditioner unit does not operate.
3. The airfl ow is too low. · The air fi lter is dirty.
4. The remote control display is dim. · Battery fl at.
5. Discharge airfl ow has bad odor.
6. Condensation on the front air grille of the indoor
unit.
7. Water fl owing out from the air conditioner unit.
8. Hissing air v sound from the air conditioner unit
during operation.
If the fault persists, please call your local dealer / serviceman.
POSSIBLE CAUSES
ó Protection against frequent starting. Wait for 3 to 4
minutes for the compressor to start operate.
ó Power failure or the fuse need to be replaced.
ó The power plug is disconnected.
ó It is possible that your delay timer has been set
incorrectly.
ó If the fault persist after all these verifi cations, please
contact the air conditioner unit installer.
ó The doors or windows are open.
ó The air suction and discharge are clogged.
ó The regulated temperature is not high enough.
ó The batteries are place incorrectly.
ó Odors may be cause by cigarettes, smoke particles,
perfume etc. Which might have adhered onto the coil.
ó This is caused by air humidity after an extended long
period of operation.
ó The set temperature is too low, increase the temperature
setting and operate the unit at high fan speed.
ó Check the condensate evacuation
ó Refrigerant fl uid fl owing into the evaporator coil.
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