
Why Does My Portable Air Conditioner Keep Tripping the Breaker?
- Pulling too Many Amps This is the most common reason for your portable air conditioner to trip out. If your machine uses more amps than your breaker is able to cope with, it’s going to trip the breaker. ...
- Dirty Air Filter This is also one of the primary causes. ...
- Dirty Unit ...
- Shorted Motor ...
- Breaker Issues ...
- Compressor Issues ...
- To Conclude ...
Why does my air conditioner keep tripping?
What Causes an RV AC Breaker to Trip Repeatedly?
- Short Circuit. Sometimes connected wiring can become damaged from other DIY projects for your RV. ...
- Weak Circuit. Circuit breakers can degrade over time. ...
- Overloading the Circuit. For example, if the circuit is rated at 20 Amps, it will generally function well at about 80% of its maximum load.
What do if your air conditioner trips your circuit breaker?
If your air conditioner uses a 115 volt power supply, the outlet has the correct voltage, but the breaker is tripping and causing the loss of power. A simple test can be performed to see if other devices are powered on the same circuit breaker as your outlet. Turn off all other electrical devices in the room except for the air conditioner.
Why does my AC keep Tripping the breaker?
- Check the capacitors if the AC compressor has difficulty starting. ...
- Check other connected appliances to check if adequate power is being supplied by the breaker panel.
- Open the RV AC to investigate any shorts in the motor.
- Do not repair a malfunctioning RV AC compressor but replace it.
Why does my central air keep Tripping the breaker?
Why Is Your Heat Pump Tripping Your Circuit Breaker?
- Dirty air filter. When your heat pump’s air filter is dirty, it blocks airflow. ...
- Wiring issues. Wiring could be at the core of your circuit breaker tripping. ...
- Outdoor fan problems. Your heat pump’s outdoor fan could be the culprit. ...
- Compressor malfunction. ...
- Dirty condenser coil. ...

What do I do if my portable air conditioner keeps tripping the breaker?
When an air conditioner trips the breaker, there are three major possible explanations— overloading, faulty AC or damaged breaker. It's critical to rule out overloading before checking other possible causes by unplugging other devices using the same breaker and resetting the breaker.
What size breaker do you need for a portable air conditioner?
For smaller 1-ton (or up to and including 15,000 BTU) AC units, you only need a standard 110/120V circuit with the standard 15 amp breaker.
Is it normal for AC to trip breaker?
Well, an air conditioner usually trips the breaker because it's pulling in more amps than the breaker is rated for. That is, if you have a 20-amp breaker and the AC pulls 30 amps, the breaker trips. That's why breakers trip: to protect you from over currents that can damage equipment and cause fires (yikes).
Can I plug my portable AC into a regular outlet?
If the AC does not have a standard grounded plug, it must require more than 13 amps. If it requires no more than 15 amps, it could be connected to the proposed circuit, but code requires that there be no other outlets on the circuit. If it requires more than 15 amps, it requires a higher capacity circuit.
How many amps does a portable AC use?
Portable air conditioners have an amp draw that ranges from 3.1A to 12.8A. The average portable AC amperage is 10.44A and the most common is 12A.
Can you run an air conditioner on a 15 amp breaker?
You can run your AC on a 15 or 20 amp circuit if it is properly wired and installed following the local electrical code.
How do I find out what's tripping my circuit breaker?
To help determine what caused the problem, unplug all the items on the circuit before resetting the breaker. After it's reset and rested for a few minutes, turn on or plugin items, one at a time, to determine what may have caused the overload.
How can you tell if your AC compressor is bad?
If there's an issue with your compressor, you might experience one or more of these signs:Your AC Is Making Growling, Screeching, or Clattering Noises. ... You Have a Hard Time Getting Your AC to Start. ... Your AC Stops Blowing Cold Air. ... Circuit Breaker Problems. ... Diminished Airflow.
Can a dirty condenser trip a breaker?
Dirty Condenser Coil This may not make sense, but a dirty condenser coil can cause your system to trip the circuit breaker. Condenser coils can become dirty if you have not been taking care of the air conditioner. In this situation, you would have observed the system to not cool as it used to.
Does a portable AC need its own breaker?
For a very short answer: Yes. Slightly longer answer: We do recommend having a separate breaker for AC. Having your air conditioner on its own breaker will prevent sticky situations like the one above, and you will have greater peace of mind that you aren't overtaxing your electrical system.
Does a portable AC need to be on its own circuit?
A good rule of thumb is that units with a rating higher than 15,000 BTUs will require a dedicated 220-volt circuit. Some air conditioners also feature a non-standard plug, indicating that it may require a dedicated circuit.
Does a portable AC need a dedicated circuit?
And one that is too small will struggle to cool a room. Consider the following before you install any type of air conditioner: With a few exceptions, most window air conditioners will require their own dedicated circuit so they don't overload an existing room circuit.
What size breaker do I need for a 12000 BTU window air conditioner?
You need a minimum 25 amp breaker for mini split systems up to 24,000 BTU/2 tons. A 30 amp breaker is sufficient for 36,000 BTU/3 ton systems, and a 50 amp breaker meets requirements for larger units to 60,000 BTU/5 tons. All the details follow.
What size breaker do I need for a 8000 BTU air conditioner?
How many amps is an 8000 BTU window AC? Most are 6-9 amps depending on the efficiency of the air conditioner. For example, an older 8 EER AC draws almost 9 amps. An 11 EER model uses just 6.3 amps.
How many amps will a 10000 BTU air conditioner pull?
Example 2: 10,000 BTU Portable Air Conditioner With EER 12 We see that this AC unit uses 7.25 amps to deliver 10,000 BTU of cooling power.
What size breaker do I need for a 10000 BTU air conditioner?
Plenty of window AC units are rated for an average of around 8A. They also often don't exceed 10,000 BTUs. This is why 15-amp breakers are relatively popular for window ACs, especially if the unit runs on 115V or 120V.
What causes a breaker to trip repeatedly?
There are very many reasons why your portable AC circuit breaker may trip off repeatedly, and these include;
How do you fix a tripped breaker that won’t reset?
The best way to handle this is to find out why it tripped in the first place. If it is just an air conditioner, then it could be one of the reasons already discussed. Ensure the problem is properly fixed and then try again.
What are the signs of a bad breaker?
Sometimes, it may be that the damage is already done and your breaker requires fixing or replacement. You may have also purchased a fake or the circuit breaker has simply lived out its lifespan.
Why does my portable AC trip out?
Pulling too Many Amps. This is the most common reason for your portable air conditioner to trip out. If your machine uses more amps than your breaker is able to cope with, it’s going to trip the breaker. If this is the reason, the worst thing you can do is keep switching it back on as this can not only damage the AC, ...
Why does my AC unit trip out?
If the filter is clogged and mucky, the AC unit is going to have a hard time starting up and may trip out because of the extra work it needs to do in order to start running. A clean filter means that the machine doesn’t have to work so hard.
What does it mean when your AC compressor is grounded?
If the compressor is grounded it means that an electrical winding has come loose and is hitting the side. This means the wire is igniting the oil and causing a burnout in the AC unit, causing a surge that leads to the breaker tripping. An AC technician will need to come and replace the refrigerant lines.
What happens if your AC compressor is not working?
The compressor is the heart and soul of your AC unit, so if something goes wrong here then it’s going to be noticed. If the compressor has trouble starting, this is usually down to age or damage. Sometimes it can be fixed by an AC technician and other times it needs to be replaced completely.
Why is my breaker not working?
Breaker Issues. Sometimes the breaker itself is the issue, and this can be caused by loose wires or a faulty connection. It’s quite a cheap issue to fix, and it’s recommended that you use a professional for the job as only an electrician should be touching the box.
What happens if you don't clean your AC unit?
If you have not cleaned your AC unit you will find that it has to work a lot harder and so will be pulling more amps than it should. This will trip out your breaker, but can be easily resolved by giving your unit a good cleaning — both inside and out.
Why does my AC go without turning off?
This is the result of overheating when the motor works too hard , and in cases like this, you will normally need to replace the motor in order to get things running again.
Why does my portable AC keep tripping the breaker?
When your portable AC keeps tripping the breaker, it is most likely due to a problem in the compressor and might require a look by a technician. Your air conditioner might also be experiencing a slow leak, which is a common occurrence in many portable AC units at the end of their life.
Why does my AC compressor trip the breaker?
AC Compressor Tripping The Breaker. At times, compressed air can become stuck above the cylinder piston because of a failure with the unloader valve. This adds to the load, hence, tripping the breaker. However, there are other reasons why the compressor may cause the unit to trip.
What to Do When Your AC Circuit Breaker is Tripping?
Don’t repeatedly turn the air conditioner breaker back on if it keeps tripping.
Why is maintenance important for an air conditioner?
Because if you don’t, the air conditioner must run longer, requiring more electricity and thus tripping the breaker.
What does it mean when a compressor is grounded?
A grounded compressor means that the compressor’s internal windings have been damaged. These broken windings can strike the side of the compressor, resulting in a direct short or grounding. This can burn oil, causing burnouts, ultimately tripping the breaker.
How does an electric motor cause an air conditioner to trip?
It involves the electric motor going from a complete halt to running 100% in a split second, drawing very high amps to overcome resistance, eventually causing an air conditioner trip .
What is hard starting AC?
The Compressor is ‘Hard Starting’. The compressor is the heart of your AC. And as the system gets older, the compressor grows weaker. Therefore, starting up a weak compressor demands a considerable portion of energy; this is known as hard starting. When hard starting, the compressor requires more electricity, hence, tripping the breaker.
How many amps does an air conditioner draw?
This often happens to air conditioners that are near their end-of-life, i.e. that have a slow leak. In any case, 11.4 amps is a lot for a window air conditioner, I suspect a new, efficient one may pay its cost in electricity savings.
How to test window air conditioner?
For the first one, you can test with a common power meter such as a $20 "Kill-a-watt". Don't sweat a momentary startup spike, watch for continuous loads higher than advertised. If you see that, window air conditioners are generally not repairable (or worth repairing) and it's better to upgrade to a modern, efficient one anyway. For the same amount of cooling, look at BTU, not watts or amps.
