8 Things to Check Before Calling a Service Technician

Air Force One Plumbing, Heating & Air

4.9 Rating

The moment arrives─ you know something isn't right with your air conditioner and you’re debating on whether you need to call a HVAC service professional, or look for the problem yourself. Wait before picking up the phone, and try these solutions first. It could save you valuable time, and money!

You can find our video covering this here.

check your power

1. Believe it or not, we get a few calls like these during the year from homeowners.

Our technicians have shown up, only to find out that the house doesn’t have power! This is both embarrassing and upsetting when you have to foot the bill for the AC service repair call.

check your filter

2. The airflow to your unit is very important and air filters should be changed when they are dirty.

If they’re not checked regularly, the restriction of air could cause the A/C unit to malfunction.

thermostat works

3. If the thermostat display doesn’t light up, change the batteries.

If that doesn't work, try the circuit breaker.

check breaker box

4. Make sure that you check the circuit breaker in the breaker box.

If the breaker to your HVAC unit has been tripped, then reset the breaker. Also, a good thing to keep in mind is that circuit breakers trip for safety reasons. If the breaker happens to trip again, you should call an electrician to come out and take a look at it. The breaker might not be the problem, and the wiring might be pulling more electricity than it should.

5. Check the switch on the indoor unit.

Often, there is a power switch located next to the air handler in homes that gets accidentally shut off, and turns off the AC unit. Make sure that the unit is still getting power by checking this switch.

disconnect switch

6. This is the same thing as above.

There should be a disconnect switch near the outdoor unit. Make sure that it is both plugged in, and flipped on. Use caution when doing this step, as this switch controls the 240 volts of electricity going to the outdoor A/C unit and it can be dangerous.

drain pan

7. What about the condensation pump or the A/C drain line?

Many A/C units have a water safety switch. This feature is to prevent water from leaking into your home’s ceiling and floor. Be sure to check for water in a pan under the unit. This basically tells you if the unit is clogged. If you find water, simply empty the pan, and flush out the drain line. Once you complete this step, check to see if the unit is operational again.

8. What about the safety switch in the pan under the A/C unit?

Often we have seen this happen in attics when someone first moves into a home, or is moving around boxes and bumped the unit itself, or the pan. The safety switch could be the problem. Do not bypass the safety switch or you could have a huge water mess in your home.

If you find that trying all of these things do not solve your A/C problem, please call an HVAC service professional to help!

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