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1. How to handle an overloaded air conditioner?
Ans:     Well your air conditioner has safety mechanisms that cut in when the coil on the back of your outdoor condenser gets too hot. The pressure builds up in your system and your unit cuts off on high head pressure.
     So some simple things you can do to help prevent this occurring are the following: * The first thing is to make sure there is shade over your air conditioner, while still not restricting the airflow around the unit.
     Now, if your system still cuts out you can get a sprinkler and spray a fine mist over the back of your coil on the outside unit. This will reduce the pressures in the system and allow the system to keep running.
     This is a really handy trick when it’s very hot you have visitors and your unit cuts out.
     If your unit breaks down do the following: Just wait 20 minutes, and then use your sprinkler to spray water on the coil at the back of your air conditioner. In most cases this will then allow you to keep your cool!

2. How to clean the Filter in air conditioner?
Ans:     To clean the filter
     1. Wet filter and lay it flat in the sink
     2. Sprinkle surface with powder laundry detergent
     3. Add about one inch of hot water to sink. Just enough to cover submerged filter
     4. Soak for 15 minutes
     5. Remove from water and rinse
     6. Hang up to dry or shake water out of filter Clean every month during cooling season. Clean filter every week if any smokers in the home. If during cleaning the filter rips or starts to disintegrate, replace with a new one immediately. Never use a filter with a hole in it even for a short period. It is the air conditioners only protection from household dirt and grime. Never operate air conditioner without a filter. Even for short period of time. Serious damage can result.

3. The coils on the front of the air conditioner are frosting up...what's up?
Ans:     Often this is a sign that the air conditioner should be brought into repair shop for servicing. Common trouble makers are: - dirty condenser coil inside the a/c should be cleaned, fan motor gets oiled and a new filter is installed.

4. My air conditioner just "hums" and does not seem to be blowing any air, what's up?
Ans:     It is possible and happens a lot, the fan motor has seized up and needs replacing.

5. Water is leaking inside my room from the front of the air conditioner, what's up?
Ans:     The evaporator coils on the front of the a/c produce water which normally travels though a drain system to the back of the unit where the water is evaporated. This drain is probably plugged and the water is running towards the front and leakingout. This is a sign that it is time to bring the a/c into repair shop for a thorough cleaning.

6. My air conditioner never drips any water out the back, isn't it suppose to?
Ans:     Most room air conditioners are designed NOT to drip water out the back. The condenser fan blade has a ring built into it to pick up the water and "sling" the water against the hot condenser tubing to help keep the coils cooler when the unit is running. This slinger can sometimes be heard "swooshing" the water around when the fan is running. This is one way modern a/c are use less hydro be reusing the cooler water to help cool the hot coils. * Usually only larger unit's may have a drain spout on the back of the a/c.

7. Will my air conditioner get colder if I open the air vent?
Ans:     No, this opens air door to the outside and actually will allow cold air to escape to the outside making it harder for the a/c to cool your room!

8. Is there anything in my air conditioner that should be oiled?
Ans:     Not all fan motors have oil plugs, but if they do....the plugs should be removed, a few drops of 3in1 ( or something similar ) can be placed into the hole. The plugs then must be re-installed to prevent dust from entering the motor oil holes.

9. Air conditioner doesn't turn on and sometimes stops working, Why?
Ans:     If the air conditioner stops functioning, check the fuses and circuit breakers. Make sure the thermostat is adjusted to cool and below the current temperature. Be sure that the furnace power and condenser power switches are turned on.

10. Why does the compressor switches off?
Ans:     If the compressor switches off, it means the high pressure switch has tripped. Reset by pressing the button in the compressor's access panel.

11. Why the Air conditioner makes noise?
Ans:     If the air conditioner is making a lot of noise, check whether the fan blades are clean or not. But before doing this, don't forget to turn off the conditioner.

11. Why the Air conditioner makes noise?
Ans:     If the air conditioner is making a lot of noise, check whether the fan blades are clean or not. But before doing this, don't forget to turn off the conditioner.

12. Why is the Frost build up on the evaporator coils?
Ans:     When the temperature is below 60 degrees and the air conditioner is on, frost may buildup on the evaporator coils. Immediately switch off the air conditioner when you see this happening.

13. Why the Refrigerant of air conditioner leakage?
Ans:     This may happen if the air conditioner is low on refrigerant or is not properly installed. Adding refrigerant may not solve the problem, hence it is advisable to call a trained technician to fix the problem.

14. Why does Air conditioner leakage?
Ans:     If the water is leaking inside the system, it means the system is not cooling, maybe due to the cooling coil getting frozen. This can also be caused due to a low refrigerant charge or insufficient airflow. To rectify this problem it is better to call a trained technician.

15. Why does Room temperature and thermostat temperature don't match?
Ans:     If the temperature set on the thermostat is more than the room temperature, the thermostat may not be calibrated properly or could be installed in a place where it's not able to sense the room air correctly.

16. Air conditioner is on but the air isn't getting cooler why?
Ans:     The reason behind this can be that the air conditioner may be dirty and needs to be cleaned. If the units are functioning properly but not cooling, then check the larger of the copper lines exiting the condenser. If it is hot, it could be compressor failure, and if it is cold, there can be air flow problems in it due to a clogged filter.

17. Why the air duct is Noisy?
Ans:     This problem may occur due to the metal heating and cooling ducts, which can be fixed by installing a flexible installation ductwork.

18. Central Air Conditioner Troubleshooting:
Ans: Thermostat:
     The first step is to check whether the thermostat has fresh batteries. Some of the best programmable thermostats give a low battery indication. It is advisable to check the batteries of the thermostat before moving further with the central air conditioner troubleshooting.
       The availability of power must be checked by turning ON the fan of the central air conditioner. If the fan is not running, it means that air conditioner is not powered. The miniature circuit breakers (MCB) and fuses in the air conditioner must be checked. If the problem is with fuse or MCB, it must be fixed. Otherwise, the condenser needs to be checked. For this,checking the compressor and motor of the air conditioner is necessary.
       For checking the condenser, the selector switch must be on 'cool' mode and the fan on the 'auto' mode'. The condenser can be reset using a button near the refrigerant lines. If the air conditioner does not work even after resetting the condenser, it should be replaced. You need to take professional assistance to replace the condenser of the air conditioner.
        Gas Charge:
       There are two copper lines running besides the condenser. These copper lines should be at a cool temperature if there is no problem with the gas charge that runs through these pipes. If these lines are warm, it indicates that the air conditioner is out of gas charge. As against this, if the lines are frozen it maybe due to the clogging of the filter or because some object is obstructing the return duct. A dirty evaporator may also cause the air conditioner unit to stop cooling the air. To fix this problem, you can turn off the air conditioner and turn it ON after the system comes to a normal temperature. A dirty evaporator must be cleaned and then the air conditioner must be turned ON. The problem of recurrent freezing needs a professional maintenance.
        Condensate Pump:
       Condensate pumps of a split air conditioner or a packaged system are usually placed outdoors. The air conditioner can stall due to unplugged condensate pump. Sometimes, a faulty condensate pump can cause the air conditioner to stop working. If there is water collected around the condensate pump, professional service must be called for so that the problem can be fixed.
       The condenser coil and fins must be cleaned at regular intervals. The evaporator in the air conditioning system must be cleaned from time to time to ensure smooth working of the system. Lastly, if the central air conditioner does not meet the cooling requirements, the capacity of the air conditioner must be increased accordingly. In case, you are not able to troubleshoot the central air conditioning system, it is recommended to call a professional installer to fix the problem. The professional installer may ask you to replace the air conditioner if the central air conditioner cannot be repaired.

19. How to save Energy when using air conditioners?
Ans:     There are some simple things you can do to save energy when using an air conditioner:  

  • Install the air conditioner (or outdoor unit of a split system) on the shady side of the building (or shade the air conditioner itself); make sure the air flow around it isn't obstructed.
  • The temperature of a heated room in winter should be between 18-21°C while the temperature of a cooled room in summer should be about 23-26°C (remember the humidity indoors will be low, so it will feel cooler). The temperature should be checked after the air conditioner has been operating for 30 minutes.
  • When a hot day is expected, turn on the air conditioner early rather than wait till the building becomes hot (it operates more efficiently when the outside air temperature is cooler).
  • Keep windows and doors closed when using refrigerative air conditioners (evaporative air conditioners require some air flow). Close curtains on hot summer and days and cold winter nights. Outdoor shading of windows in summer is most effective.
  • If the machine has adjustable louvers, adjust them towards the ceiling when cooling, and towards the floor when heating (as cool air falls, hot air rises).
  • Follow the manufacturer's instructions for filter cleaning.

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