Q _&_ A

Q & A

Common Air Condition Questions

  • Is blinking
  • Is leaking water
  • Is not blowing out cool air
  • Is not cold enough
  • Is noisy
  • Is not responding to the remote control
  • Switches on and off by itself
  • Takes a long time to cool down the room or is not cold enough
  • Has a foul smell
  • Has signs of icing on the valves at the condensing outdoor unit
Check if your Remote Control is wrongly set. If the blinking still continues, this is an indication that your air-conditioner is faulty. It could be due to a faulty PCB board, insufficient or over-charging of refrigerant.
The drainage pipe of the air-conditioner could be choked due to regular usage. The condensation from the air-conditioner’s coil would be directed to the internal water tray and drained out through the drainage pipe. With frequent usage, algae would accumulate and choke / clog the drainage pipe. As such, access water that is unable to be drained out would overflow from the internal water tray.
Similar to a fan, the air-conditioner also has a rotating fan blower. Overtime this blower would accumulate dust and thus limiting the amount of cool air being blown into the room.
Check your Remote Control, whether you have set the wrong mode. Controller mode varies across different air-conditioner brands. Set it to your ideal temperature preference ie(21®c, high fan, cool mode). Another possible cause is that your air-conditioner coil is choked due to frequent usage and accumulation of dust particle. Hence, less cool air could be circulated into the room as the air passageway is obstructed.
There are many causes to this problem. The air-conditioner parts may not be fitted appropriately. However, the most common fault is that the air-conditioner had been regularly serviced and is not running on optimum conditions. Continued excessive usage in such a case would further deteriorate the hardware of the air-conditioner. It would be a matter of time before it malfunctions.
Usually it is the sensor PCB board of the air-conditioner that is faulty. Try replacing the batteries of the remote for stronger signal strength.
The air-conditioner internal PCB is faulty and is unable to operate normally.
There are many causes to this problem. Check if the remote control is set to operate at optimum condition. The indoor fancoil unit, outdoor condensing unit or both need to be serviced as it has accumulated too much dust and particles which hinders the air passage. You could have installed an under-sized air-conditioning unit with respect to the room capacity.
Commonly the source is from the smell of the furniture or room activities. These particles will accumulate overtime in the indoor fancoil unit, hence without general servicing, the odour would tend to get stronger until it is noticeable.
The air-conditioning system has insufficient refrigerant gas or the indoor fancoil unit is extremely dirty and is unable to channel cool air into the room regularly.
  • Considerations for choice of air-conditioning system
  • Working out the optimum cooling capacity required for your room.
  • What is an inverter air-conditioner?
  • What is BTU?
Determine the target room that requires air-conditioning. Based on the room area determine the optimum cooling capacity that is needed to provide you with a cooling ambience in suiting your lifestyle. Determine the brand and type of air-conditioning to be installed and work out a budget comfortable for you.
This formula provides an estimate for the required cooling capacity of a room:
Estimated Cooling Capacity Required = (Area of Room) × 65 [BTU/Hr] = (Length (ft) × Width (ft)) × 65 [BTU/Hr] E.g: Estimated Cooling Capacity Required = (Area of Room) × 65
= (10ft × 10ft) × 65
= 6500 BTU/Hr
*Note: 1m = 3.281ft

When the room has cooled down to the selected temperature, the inverter technology reduces the work load of the compressor by efficiently regulating it gradually. Power consumption would be significantly reduced, as such you would be able save on your monthly electricity bills.
BTU stands for British Thermal Units and air-conditioners are given BTU ratings to show their cooling capacity. BTU ratings allows you to determine the air-conditioner size needed in cooling your space. For better of your BTU requirements, you should include factors that would increase or decrease the load on the air-conditioner.
• Reduce cooling capacity by 10% if your room is heavily shaded
• Increase cooling capacity by 10% if your room is extremely sunny
• Add 600 BTU for each additional person, if more the two people regularly occupy the space
• Increase cooling capacity by 4,000 BTU if the room is a kitchen
• Reduce cooling capacity by 30% if the air-conditioner only runs at night
1.  Remove and wash the filters of the fancoil unit regularly for better air flow and hygiene.

2.   Check the batteries for the remote control regularly to prevent corrosion.

3.   Depending on usage, arrange monthly or quarterly general servicing of your air-conditioning system. Regular maintenance will prolong the lifespan of the air-conditioning system and most important of all is to ensure the air that your family breathes is 100% healthy.

4.   Upon engaging an air-conditioning contractor, do look through their company profile, experience and after sales / service warranty.

5.   Check the setting of the remote control just to avoid unnecessary expenditure in engaging an air-conditioning specialist. This is to confirm that the air-conditioner has malfunctioned and not just a wrong setting of the remote control.

6.   Avoid dismantling the air-conditioning unit yourself to service, rectify or remedy any faults as you may worsen the problem. Just call us and leave it to the Aircon Professionals.