why does my ac only work sometimes

Best take it into the shop for them to look at it. If your car AC is working but its not cooling as it used to you might be looking at a blockeddamaged condenser.

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The list goes on and on.

. I suspect its the blower motor let me tell you why. My house fan kinda behaves like that when the blower motor is about to die. Your vehicle should have a complete relay diagram showing the location of all of the vehicles electrical components such as fuses and relays.

The air conditioner in our 2004 Mazda Miata has honestly never worked so great--it always blew out. Clogged or dirty cabin air filters and fan housing will cause the AC to work harder making it sometimes work while other times it wont. Dirty or clogged condenser.

When the AC is releasing hot air the possible reason could be a defect in the damper. I suspect you either have a tiny leak in your AC refrigerant piping andor you need a refill of refrigerant gas. How often does the system fail.

Many cars these days have a switch or computer control that disables the compressor clutch when the engine is performing at or above a designated power level. A damaged failing or worn compressor cant properly compress refrigerant in the AC system to deliver the cool air you crave. Your thermostat is your way of communicating with your air conditioner.

When fans arent properly functioning your condenser may not receive properly cooling. To make it easier to record the information download our air conditioning diagnostic sheet. Answer 1 of 8.

Its easy to forget to replace or clean your HVAC air filters. During the hot summer months homeowners rely on their AC unit to stay cool. Why is my outside AC unit not turning on.

Dirty cabin air filter mostly only leads to reduced cooling. Why the AC Blows Cold on One Side and Hot on. An evaporator covered in ice cant cool the air so you would have to wait until the ice melts which is why the cold air eventually returns.

If you experience the symptom of the AC blowing hot or cold air on one side but not the other and its accompanied by a clicking or ticking sound it probably means a gear in the temperature blend door actuator is faulty and the actuator needs to be replaced. Most of the times it deacrese its charge even it is plugged in. Today my cars AC fan wouldnt come on at any speed setting only to come on later in the day what could it be.

Intermittent cooling is often caused by the components of your vehicles AC system freezing up. Does it fail on the highway or in stop-and-go traffic. So on my way to work it will kick on just after it reaches that mark.

The best way to check if the cooling fan is broken is through a visual inspection. Intially I suspect its a charger issue and brought a new one because battery still shows a very very good battery backup off 3 hours if it is changed to a 100. If I get back in the car when its still warm it will work if above that notch and if its below that mark it will kick on once it reaches that mark.

Check heater and ac ignition 10 amp fuse under hood junction boxif all is good check blower motor fuse and relayif all looks good. Is the air conditioning control panel functioning normally. Cracks in the fan can be caused by debris on the road and replacement is the only true way to address this issue.

So if the thermostat is not working properly there is no way for your AC to know that it should be switched on. Peter charged us only 202 plus performed the work at our home. Typically an iced over evaporator is the culprit.

This will guide you through the process. The cabin air filter is located behind the. This could be the problem if your air conditioner wont turn on but its even more likely if it runs but doesnt cool.

Over time this can cause your car to start emitting only hot air. Well I dont think its the fuse otherwise the fan wouldnt come on at all its probably not the blower motor resistor either. This is usually smaller engines but my 53L V-8 pickup trucks exhibit this action.

AC Blows Hot or Cold Air on One Side with Clicking Sound. TURN ON CONTROL SWITCH TO CHECK TO SEE IF POWER GOING TO BLOWER MOTOR IF YES BLOWER MOTOR BADIF NO POWER GOING TO BLOWER MOTOR FUSE AND RELAY GOODYOU HAVE BROKE WIRE BETWEEN SWITCH. Check the onboard computer if it can verify the dampers position.

Sometimes it starts to charge normally and shows correct estimated time. Another common and easily remedied situation that sometimes results in a central air conditioner fan not working is a dirty clogged air filter. If one of the controls is out of range the damper is surely the root of the problem.

A Failing Expansion Valve. If the air cannot flow freely the cabin cannot be cooled properly. The component is in charge of the air path that goes into the cabin.

If your AC flip-flops from hot to cold and back again your expansion valve could be failing. Your systems air filter traps dust dirt and other airborne pollutants to keep indoor air and internal cooling system components cleaner. A blockedbroken condenser can cause a leak.

The Front Blower Motor Relay also known as the AC Relay located behind the junction block with a black connector B05 is the culprit. Be sure to check out these common reasons why an air conditioner might not turn on and what you can do about it. When theres a problem with the compressor clutch your air conditioner wont blow cool air for long.

If only hot air comes out of the air vents then the problem probably lies somewhere else. Like the radiator the air conditioning condenser on Ford Focus sits at the front of the vehicle and is responsible for releasing the heat from the refrigerant into the ambient air. Your air filter is inside your house usually near the return air duct or blower compartment.

Fortunately replacing a cabin air filter can be done quickly with only a screwdriver. So when an outside AC unit isnt turning on its essential to figure. Up to 8 cash back A local major competitor quoted us a repair cost of a minimum of 1400 and said that the cost would go up to 2400 if they discovered an additional part was required.

This is often the case. The AC works only when the in-dash temperature gauge is above the mark right before center 190.

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