Identifying whether an air conditioner has shorted internally or externally by just looking at it from the outside can be challenging, as many electrical components are hidden within the unit. However, there are a few signs you can observe to help you determine if there might be an electrical issue without opening it up:
No Power or Unresponsive: If the air conditioner is not turning on at all or is unresponsive when you try to operate it, it could be a sign of an internal electrical issue.
Tripped Breaker or Blown Fuse: If the air conditioner repeatedly trips the circuit breaker or blows a fuse when you try to turn it on, there may be a short circuit.
Visible Damage: Examine the external casing of the air conditioner for any visible signs of damage, such as burnt marks, melted components, or exposed wires. These could indicate an internal short circuit.
Strange Sounds or Smells: If you hear unusual buzzing, popping, or hissing sounds, or if you notice a burning smell coming from the air conditioner when it's running, it could be a sign of an electrical issue.
While these signs may suggest a possible electrical problem, they do not definitively confirm whether the short is internal or external. To accurately diagnose and fix the issue, it's best to have a qualified HVAC technician or electrician inspect the air conditioner. They have the expertise and tools necessary to open up the unit safely, perform tests, and identify the specific cause of the problem. Attempting to diagnose or repair an electrical issue on your own can be dangerous and may void any warranty or insurance coverage you have for the appliance. Always prioritize safety and consult a professional for any electrical or HVAC-related concerns.