During summer time, some people go to beaches and travel upon their favorite destinations while some stay at their homes to get cozy and rest or work through their offices. It is indeed important to relax and to avoid excessive exposure to heat of the sun. That is why most people seek to install AC systems as a packaged from HVAC systems to maintain optimum temperatures during summer time, making living comfortable and happy.
What is an Air conditioner?
-part of a central heating and cooling system, draws heat energy out of the house and transfers it to the outside air.Additionally, it regulates the change in temperature, humidity or the quality of air flowing inside the space. It makes the room cooler and especially useful during summer months.
How does an air conditioner works?
When a liquid converts to gas, it absorbs heat. Air conditioners uses this attribution to put some special chemical compounds who continues to evaporate and condense in a closed system of coils.
The compounds involved are refrigerants that have properties that change at relatively low temperatures. Air conditioners also contain fans that help on the flow of warm interior air over these cold, refrigerant-filled coils.
When hot air flows over the cold, low-pressure evaporator coils, the refrigerant inside absorbs heat as it changes from a liquid to a gaseous state. To keep cooling effectively, the air conditioner has to convert the refrigerant gas back to a liquid again. To do that, a compressor puts the gas under high pressure, a process that creates unwanted heat. All the extra heat created by compressing the gas is then evacuated to the outdoors with the help of a second set of coils called condenser coils, and a second fan. As the gas cools, it changes back to a liquid, and the process starts all over again.
Basic Parts of AC System
The basic parts of AC system are the following;
- Thermostat- monitor and regulate air temperature
- Evaporator – Receives the liquid refrigerant
- Condenser – Facilitates heat transfer
- Expansion valve – regulates refrigerant flow into the evaporator
- Compressor – A pump that pressurizes refrigerant
Most Common Problems for AC Systems
It is really troublesome for owners of AC system when things got wrong and it’s not functioning properly. That is why, it is important to identify the problem that the AC system is involved.The following list below are some of the problems most owners encounter on their AC systems;
-If your refrigerant is inadequate or improperly installed, it could cause leaks that could affect the AC system function.Simply adding refrigerants won’t solve this problem and thus, a professional technician should be hired–to test the leak and repair it,adding refrigerant properly.
-if one will not clean it’s AC system once every six months, dirt could accumulate on filters,fans, and coils that could affect AC’s efficiency and performance. Thus, it is recommended to clean it regularly.
3.Electric Control Failure
-When fans and compressors does not function,electric control could experience discrepancy or failure. Corrosion of electrical wires and terminals could be a cause of this problem. To check, a professional technician should be called upon.
-If the sensor does not function well, temperature set would not be stable and behaves erratically. It should be remembered that the sensor should be not the coil but not touching it. As a remedy, adjust its position by carefully bending the wire that holds it in place.
When it’s humid outside, check the condensate drain to make sure it isn’t clogged and is draining properly. Room air conditioners may not drain properly if not mounted level.
Things to Remember if your AC does not work
If your AC is not working at all:
1. Be sure it is receiving power at the electrical panel.
2. Reset the equipment’s switches and/or overloads.
3. Check the thermostat settings.
4. Check the condensate overflow switch.
If your AC is not cooling but runs:
1. Turn off the power.
2. Clean or change the filter.
3. Look to see if ice has formed on the coils and, if it has, turn on the power and the fan to melt it.
4. Clean the condensate drain.
5. Finally, check and clean the outdoor compressor.
If the Central AC does not work at all, then one should check the following;
1.Check the main electrical panel and any secondary circuit panels for a tripped breaker or blown fuse.If you find the problem there, reset the breaker by turning it off and then on or replace the fuse. A central air conditioner typically connects to a dedicated 240-volt circuit.If the breaker continues to trip, suspect a short in the system—in the compressor, capacitor, or the fan motor. Hire an electrician to track down and solve this problem.
2.Make sure the thermostat is set to COOL and its temperature setting is at least 3 degrees below the ambient room temperature.
3.Make sure the power is on. Check the switch in the furnace or air handler, and the outdoor condenser. Also make sure no one has shut off the compressor’s 240-volt disconnect, typically in a metal box mounted near the compressor.
4.Remove the thermostat’s cover after turning off the power to the air conditioner. Remove the thermostat’s body from the base (usually by pulling straight out) and replace the batteries (if it has batteries). Make sure all wires securely attach to their terminals and that the cover won’t pinch them. Replace the cover and wait 3 or 4 minutes, and then try the system again.
5. If that doesn’t do the job, open the thermostat and unscrew the wire from the Y terminal. Turn the power back on. Holding the wire by its insulation only, touch the bare end to the R terminal and hold it there for about two minutes.. If the compressor doesn’t go on when you hold the Y wire to the R terminal, turn the power back off and either call an air-conditioning technician or check the capacitor.
6.Finally, check the compressor’s capacitor and wires. The capacitor in the compressor starts both the condenser and the fan. If the capacitor has failed, the A/C unit will not run. It’s very easy to test whether it works and it is cheap and easy to fix if it doesn’t.
Tips on Hiring AC Technician
In seeking professional help for repairing AC systems, one should remember out most some tips in order to assure efficiency of the system.Therefore, these things should be remember;
-Do some research. Learn about the type, brand, model and maintenance history of the AC system. Determine the degree or how much the air conditioning system needs to be repaired.The more time you spend on diagnosing and researching on it, one could save money–ensuring to repair it fully.
-Know the company your hiring.Start looking through reviews by friends or through online.Also, looking the company’s legal permits and if possible, complaints through local Better Business Bureau (BBB).
c.Find out about the cost
-Approximate the cost of the repair including the maintenance,labor ,material, and other upfront costs available.