It’s the time of year – late March – when Arizona homeowners start worrying about having an expert heating and cooling technician inspect their air conditioner. That’s great, but in fact, you probably should have a fall inspection too for your heating system.

And if you have a heat pump, some HVAC experts say your combined heating and cooling system should receive maintenance twice a year.

Here are four jobs to do to get the best out of your air conditioning system, depending on its location, according to Marla Islas, general manager at Temperature Control in Tucson.

1 – Clean up any dirt, leaves and debris outside the outdoor compressor that contains the cooling fins and fan for your AC. That fan sucks

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