5 Signs Your Air Conditioner Is Low on Freon/Refrigerant

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1) House takes forever to cool off

If your AC is taking longer than normal to cool the home, you may be low on refrigerant.

Why?

Because refrigerant is what absorbs the heat in your air. So without enough of it, your AC can’t absorb enough heat to cool the air well.

2) Supply vent is blowing lukewarm/warm air

If you’re really low on Freon, you’ll notice that your supply vents are blowing lukewarm/warm air.

Now it makes sense why your home is taking forever to cool off!

3) Higher than normal electric bills

Due to lack of refrigerant, your AC runs much longer than needed to cool the home, increasing your energy bills as a result.

4) Ice buildup on refrigerant line

Go to your outside AC unit (the one with the spinning fan). If you see ice building up on the copper refrigerant line, then you may be low on refrigerant.

When low on refrigerant, the inside AC unit’s evaporator coil (the part that cold refrigerant flows through) gets too cold, causing cold liquid refrigerant to flow back the refrigerant line.

5) You hear a hissing/bubbling noise

The only reason you’d be low on refrigerant is due to a refrigerant leak (refrigerant isn’t used up like gas in a car, so escape through a leak is the only conclusion).

And if you have a bad refrigerant leak, the refrigerant makes a hissing or bubbling noise as it escapes.