how to troubleshoot central air conditioning?
118181
Make sure all the registers in the house are wide open. Then be sure the furnace filter is clean. Then go outside and clean off the condenser coils (Photo 2). If several registers were closed or the filter was clogged, the reduced airflow could have caused the evaporator coil to ice up and stop cooling your home.
1464328
Limited or lack of air flow can often be the result of a dirty or clogged filter. When troubleshooting this portable air conditioner problem, first clean the filter to get rid of any dust or dirt that has been trapped inside it. Use a vacuum or brush.
1026202
When your air conditioner suddenly stops working, it can be cause for alarm or it can be something as simple as a blown fuse or tripped circuit breaker. ... It is important to note that many common problems with air conditioners can be caused by inadequate maintenance.
786491
['Check the Distributer Cap. Often the distributor cap is suspect. ... ', 'Check the Contact Points. Inspect the condenser; the engine will not function if it is broken. ... ', 'Check the Arc. ... ', 'Tools and Materials.', 'Crank the Engine. ... ', 'Remove the Old Distributor. ... ', 'Set the Point Gap. ... ', 'Set the Distributor.']
1048947
['Cooling fans do not come on. The most common symptom of a faulty cooling fan motor are cooling fans that do not come on. ... ', 'Vehicle overheating. Another symptom of a possible problem with the cooling or radiator fan motors is the vehicle overheating. ... ', 'Blown fuse.']
238911
If an AC unit freezes up in a new home/new HVAC system or when the AC has just been replaced with one of a different size, this might be the problem. And yes, it's an airflow issue. Ductwork that is too small for the AC and blower doesn't allow enough air through the system to keep the coil from icing.
796820
['Turn off and unplug the air conditioner.', 'Take out the filter (easily accessible in the front) and use a damp rag to wipe off any dust.', 'When the filter is dry and clean, simply put it back inside the unit. Voila!']
796296
['Wrap it with a blanket. If your portable air conditioner makes noise, use a blanket and wrap it in the portable air conditioner. ... ', 'Place the air conditioner on a large carpet. ... ', 'Place the Portable AC on the anti-slip vibration pad. ... ', 'Place the AC remotely and pass the cool air through vents.']
547146
['Check gas cap for proper tightness.', 'Check gas cap rubber seal for cracks.', 'Check all EVAP hoses leading to and from the charcoal canister and air cleaner assembly.', 'Diagnose both the purge and vent control valves/solenoids.']
423347
['Step 1 - Check the System. Stop the compressor and check the refrigerant in the system.', 'Step 2 - Get Materials. ... ', 'Step 3 - Connect Hose. ... ', 'Step 4 - Move Cover. ... ', 'Step 5 - Throttle. ... ', 'Step 6 - Close Regulator. ... ', 'Step 1 - Check System. ... ', 'Step 2 - Connect Cylinder.']
744615
If the air conditioner does not cool, the compressor might be defective. The compressor is a motor which compresses the refrigerant or coolant and circulates the refrigerant through the evaporator and condenser coils. If the compressor goes bad the cooling cycle does not start and the AC fails to cool.
552051
You should then check the condenser and evaporator for dirt and clogging. ... In general, this problem is caused either by a dirty condenser and fan or a clogged condenser. The condenser unit won't turn on: If your condenser unit won't turn on at all, you may have a faulty motor or the unit may not be receiving power.
552341
['Step 1: Get a hold of some air conditioner cleaner. ... ', 'Step 2: Unplug your air conditioner. ... ', 'Step 3: Access the inside of your AC unit. ... ', 'Step 4: Remove dust filters. ... ', 'Step 5: Apply cleaner. ... ', 'Step 6: Reassembly.']
997074
So what caused your air conditioner to stop working? Most likely, your AC system lost its charge of refrigerant. Or, due to an electrical fault, its compressor is not engaging when you turn on the system. Another possibility is that an internal obstruction is blocking the circulation of refrigerant.
1247545
You will want to have the unit examined to look for signs of a blown fuse, a tripped circuit breaker, a broken thermostat, or dirty air filters. Dirty or clogged filters commonly make AC compressors stop working.
395389
['Turn the thermostat and main power switch off.', 'Visually inspect the unit for damage. ... ', 'Remove leaves and debris from the outside of the unit.', 'Use a cooling fin comb to straighten any bent fins.', 'Remove the top of the unit, carefully. ... ', 'Vacuum dirt and debris out of the bottom of the unit.']
281934
['Turn off the power supply to the air conditioning unit.', 'Remove the protective grill from the top of the unit.', 'Attempt to turn the fan blade manually. ... ', 'Turn on your air conditioning unit and stand next to it.', 'Listen for a grinding or whirring sound. ... ', 'Replace the compressor or the entire air conditioning unit.']