The problem of a noisy central air conditioner condenser can be solved in several possible ways, but if the unit is too old it may just need to be replaced.
By the DIY experts of The Family Handyman Magazine:March 2009
Unscrew and lift off the top panel. The
heavy fan motor is mounted on the
panel, so have a helper hold it while you
install the blanket.
Problem: Noisy air conditioner
The outside condenser of a central air conditioning unit can be very loud. Read on to find the best solution based on the cause of the problem.
Fencing one or all sides of an air conditioner’s
outside unit can deflect noise. But experiment first:
Prop up plywood around the unit so
you can judge how much good a fence
will do. If you decide to build a fence,
keep it at least 3 ft. from the unit to
allow airflow. For the best sound
reduction, overlap fence boards
instead of leaving gaps between them.
Aside from a fence, there are a few
other approaches you should consider:
Shut off all power to the unit.
Turn off the thermostat inside the
house, switch off the breakers
at the main panel and pull out
the fuse block at the outside
Have the necessary tools for this DIY project lined up before you start—you’ll save time and frustration.
If you decide to build a wooden enclosure, you'll need a post hole digger, a level, miter saw and drill.
Avoid last-minute shopping trips by having all your materials ready ahead of time. Here's a list.
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