Imagine this… It is a hot Sunday afternoon and you are enjoying your day off at home with your family. But you are feeling uncomfortable in the house. Is it the weather? Think Twice. It might not be the weather but the central air conditioning system that is at fault. Now why is this happening? The reason is simple. You have not cleaned the air conditioner for a long time or have forgotten to ask an air conditioning contractor for periodic checks. However, things would have been different if the routine air conditioning cleaning was followed properly. Though it is hard, but you can always do the job yourself, says some of the well known air conditioning maintenance companies in NYC like Five Borough AC & Heating. There are some good air conditioning cleaning tips that can help.
The central air condition unit comprises of the condenser, evaporator and thermostat. Though the fan and the drain ports also require to be cleaned at regular intervals, keeping the condenser, evaporator and thermostat are crucial. If you find that the motor or compressor requires to be changed, then it is better to call an air conditioning contractor.
Ways to Clean the Evaporator
The evaporator can be cleaned only if it is accessible. If you see that the plenum is sealed, then it is better not to open it.
1. First, remove the foil wrapping insulation. If it is taped, keep it as it has to be replaced again. Remove the screws and lift the access plate placed behind the insulation.
2. Take a stiff brush and clean the interiors of the evaporator. For cleaning the blind spots, you can use a hand held mirror.
3. Next, clean the tray below the evaporator unit. Take around a tablespoon of bleach into the weep hole for preventing fungus. Check for moisture in the condensate drain and pan.
4. Place the unit back in place. Put the plate in place and put the tape back on it. Run a check for any air leaks.
How to Clean the Condenser
The condenser is prone to getting dirtier as it is placed outside the house. The fan of the condenser attracts dirt, leaves and dust which travels up to the coil.
1. Look for foliage, weeds and leaves growing around the condenser unit. Cut off any vines or shrubs that might be growing around the condenser and restricting the air flow.
2. Take a good quality commercial coil cleanser to clean the coils. Dry the coil clean.
3. Take a soft brush and clean the fins. Remove the protective grille carefully first. Do not use water to clean the fins as it might make it muddy. Take care not to bend the fins. If they get bent, use a fin comb to straighten them.
4. Check the level of the concrete pad. Make sure that it is at the carpenter’s level.
5. During the winter, cover the condenser unit from getting it damaged from ice and falling leaves.
Cleaning or Replacing the Thermostat
To clean or replace the thermostat, first remove the grille and control panel from the unit. While removing the thermostat, take care of the sensing bulb which senses the temperature and which is controlled by the thermostat. It is important to mark the location of the sensing bulb because it has to be replaced in the same spot later.
Check the thermostat by clipping the probes of the tester to the thermostat terminals. The temperature control has to be set to coldest. The reading will be zero if the thermostat is working properly. If it gives a reading higher than zero, then the thermostat might need a replacement.
Testing the Air Conditioner’s Coolant Lines
Air conditioning cleaning also requires an examination or repairing the system’s coolant lines at regular time intervals. You should run a check of the lines from the condenser to the evaporator. If you see that it is damaged, then it is better to get it replaced. If you cannot do it alone, then call an air conditioning contractor to do the job professionally.