• Home
  • Why is my heater and AC not working?

Why is my heater and AC not working?

Author of the blog (work in a car repair shop)
Ask Q

Why is my heater and AC not working?

Your circuit breaker could have been tripped for your AC or furnace, so it's important to check both places. A key indicator is that if the thermostat is blank, the furnace might not have power. Try turning your AC off at the thermostat and resetting your circuit breaker. Wait a half an hour before turning it back on.

Why is my air conditioner heating not working?

When these do not work then the overall system is negatively affected, including the ability for the aircon to reach the desired temperature. At times the settings of the air conditioner may be in the wrong settings which may be why the air conditioner heating is affected.

Why is my reverse cycle air conditioning not heating my home?

Your reverse cycle air conditioning may be cooling your home but your air conditioner heating function may not be working correctly. When the air conditioning unit cools but does not heat the home then there can be multiple errors with the system.

Why is my central air conditioner blowing cold air?

Central air systems have condensers outside the house. Clear any debris around the air conditioner. Leaves and tree branches can block the flow and cause the unit to malfunction. Cleaning it regularly as part of AC maintenance helps prevent problems.

Why won't my furnace turn on?

It sounds silly, but mistakes happen, and the furnace won't turn on if the indoor air temperature is warmer than the thermostat's temperature setting. Likewise, the air conditioner won't turn on if the indoor air temperature is cooler than the thermostat's temperature setting.

Below you will find two interesting articles on a similar topic 👇

What should I do if my thermostat is stuck?

Why does my heater work but not my AC in my car?

Tired of looking for a video for your question?

Video Answer below 👇

Were our answers helpful?

Yes No

Thanks so much for your feedback!

Have more questions? Submit a request

FAQ for the last Day

  • Can you drive a car with a bro ken thermostat?
  • Can I Still Drive with a Bad Thermostat? The easy answer to this question is no. While your car may be physically able to move and get you from Point A to Point B, you will want to refrain from operating your vehicle. This can lead to more parts of your vehicle being damaged, especially if the engine is overheating.Can you run a car with a broken thermostat valve? You can take the thermostat out,...

  • How can I cool down my engine fast?
  • Put your car in neutral or park and then rev the engine. This makes the fan and the water pump work faster, which pulls more air and more water through your car's radiator. This increased circulation cools down the engine. Pull over and open the hood.In order to cool down your overheating engine fast, you will need to turn off your A/C and turn on your heater on full blast. This will allow the hea...

  • What happens if the thermostat in my car goes bad?
  • If the car thermostat is bad, it won't allow coolant from flowing into the engine, which ultimately causes the car to overheat. So when this happens one of the possible causes is a broken thermostat.The car thermostat is basically like a temperature sensor for your engine. Once the thermostat goes bad, it is no longer able to sense the right temperature in your engine. This means it won’t open and...

  • Is it okay to drive a car without a thermostat?
  • Your car has wear and blow by problems below 180F. Your car would not necessarily overheat since the fluid would be constantly flowing through the coolant system. It would however take longer to warm up and during long periods without a break it could overheat, but yes you can run a car without a thermostat in it.How long can you drive a car without a thermostat? When you start a cold engine, the...

  • What controls the heater in a car?
  • The warmth from the engine goes from the radiator to the heater core, which basically acts as a heat exchanger. It allows coolant to flow through, and this flow of coolant is regulated by the heater control valve. As the engine's heat is carried by coolant into the heater core, the device starts to get warm.What makes heater stop working in a car? A heater can stop working for a number of reasons,...

  • Is there a fuse that controls heater in my car?
  • Q: Is There a Fuse For The Heater In My Car? A: Your car's heater does indeed have a fuse. You can check to see if the heater fuse is shot by looking inside your fuse box.How do I know if my heater fuse is blown? You can quickly determine by checking resistance with a multimeter. A good fuse will have nearly zero ohms of resistance, if the fuse is blown there will be no reading. Can a blown fuse c...

  • Can air in coolant system cause no heat?
  • If coolant levels keep dropping or air bubbles come back, it's time to see your mechanic. No heat on frigid days places you and passengers at risk if the windshield fogs up or ices over. Air trapped in a cooling system can also cause engine overheating, resulting in premature engine failure.Sometimes even with water in the system and a working thermostat, you can still get no heat; the flow of wat...

  • Why does my AC work but not heat?
  • Another possibility is that your thermostat setting is too low. If your thermostat is too low, it can also result in a frozen evaporator coil. Also check that the temperature doesn't change drastically when set to cool. So you want to make sure that your thermostat is set to the right level and working properly.One of the simplest things to do is check your thermostat setting. If your thermostat i...


Leave a Comment

Email us