9 Things to Check Before Calling for A/C Service

Check Before Calling

When you notice something is wrong with your HVAC system, but aren’t sure if you want to call a repair service, there are some things you can do first.  By checking these things you’ll save time and money.  You may even figure out what’s wrong with your system without calling an HVAC technician.

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Make sure your home has electricity.  When your HVAC tech shows up and tells you there’s no electricity on your block, you’ll feel embarrassed.  Of course, you’ll also need to pay the tech for the service call.


The Drain

Make sure there isn’t any water pooling in the indoor air handler.  This is important because AC systems have a built-in safety feature that turns them down if water overflows your condensate plan.


The Air Filter

Proper air flow to your AC unit is really important.  This is why you must change the air filter regularly.  When you don’t do this, you restrict the air in your AC unit, causing it to malfunction.

air filter

Thermostat Batteries

When the thermostat’s display doesn’t light up, you should change the batteries.  This isn’t enough to make your AC stop working though.


A Tripped Circuit Breaker

Look in your breaker box at your circuit breaker.  Sometimes people refer to this as a fuse box even though fuses haven’t been used for years now.  Regardless of what you call it, make sure the breaker for your HVAC system wasn’t tripped.  If it is, you’ll need to reset it.  Remember, a tripped circuit breaker typically occurs for safety reasons so if t trips again you’ll want to call an electrician to look at the problem.  Usually, the circuit breaker isn’t the problem.  There’s something in your home’s wiring that’s pulling more electricity than it should pull.


Check The Switch On The Indoor Unit

Most of the time local code states that your home must have an on-off switch installed by the indoor air handler.  They do this for safety reasons.  When something accidentally hits the switch, it may turn off.


The Disconnect Switch To The Outdoor Unit

Similar to the switch on the indoor unit, there’s also a switch on your outdoor unit.  You need to make sure that this switch is on.  Make sure you’re really careful here because this switch is responsible for handling 240 volts of electricity.  This is what your outdoor unit requires so it is dangerous.


The Condensation Pump

Most AC units have a water safety switch on top of them.  This stops them from working when something malfunctions so water doesn’t leak into your home and ruin your ceiling and floors.  Make sure the switch is on.


The Safety Switch In The Pan Under The AC Unit

Sometimes if you’re moving something around in your attic you may bump the AC unit or its pan.  When this happens it’s this switch that’s the problem.  Don’t ever bypass this safety switch though.  Doing so could cause a huge water mess inside your home.

After you check these things and find that you still have a problem, make sure you call an HVAC professional.

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