Service And Maintenance; Trouble Shooting - McQuay CK20AR Installation Manual

SERVICE PARTS
Indoor air filter
Indoor unit
! Caution
If any malfunction of the air 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.
1. The compressor does not start operate after 3 minutes
from starting the air conditioner unit.
2. The air conditioner unit does not operate.
3. The air flow is too low.
4. Discharge air flow has bad odor.
5. Condensation on the front air grille of the indoor unit.
6. Water flowing out from the air conditioner unit.
7. Hissing air flow sound from the air conditioner unit
during operation.
If the fault persists, please call your local dealer / serviceman.
CK20A(1-16)ENG

SERVICE AND MAINTENANCE

MAINTENANCE PROCEDURES
1. Remove any dust adhered on the filter by using a vacuum cleaner or
wash in lukewarm water (below 40
2. Rinse well and dry the filter before placing it back onto the unit.
3. Do not use gasoline, volatile substances or chemical to clean the filter.
1. Clean any dirt or dust on the grille or panel by wiping it using soft
cloth soaked in lukewarm water (below 40
solution.
2. Do not use gasoline, volatile substances or chemical to clean the
indoor unit.
Do not operate any heating apparatus too close to the air conditioner unit. This may cause
the plastic panel to melt or deform as a result of the excessive heat.

TROUBLE SHOOTING

FAULT
16
o
C) with neutral cleaning detergent.
o
C) with neutral detergent
CAUSES / ACTION
- Protection against frequent starting. Wait for 3 to 4
minutes for the compressor to start operating.
- Power failure, or the fuse need to be replaced.
- The power plug is disconnected.
- It is possible that your delay timer has been set incorrectly.
- If the fault persist after all these verifications, please
contact the air conditioner unit installer.
- The air filter is dirty.
- The doors or windows are open.
- The air suction and discharge are clogged.
- The regulated temperature is not high enough.
- Odors may be caused by cigarettes, smoke particles,
perfume etc. which might have adhered onto the coil.
- This is caused by air humidity after an extended long
period of operation.
- The set temperature is too low, increase the temperature
setting and operate the unit at high fan speed.
- Switch off unit and call dealer.
- Refrigerant fluid flowing into the evaporator coil.
1-16
2/1/01, 10:15 AM
PERIOD
At least once
every 2 weeks.
More frequently if
necessary.
At least once
every 2 weeks.
More frequently if
necessary.