02:18PM | 08/14/09
Member Since: 08/13/09
2 lifetime posts
Recently, I am experiencing severe interference on AM radio stations in house and garage, but only when the air conditioner is running.

When system is running, can shut down at thermostat and radio will be normal. Only AM is affected.

System is forced air 220V with outside compressor and inside exchanger and 100Amp service.

Possible cause?


08:53AM | 08/15/09
Member Since: 07/22/04
661 lifetime posts
powering the radio off the other leg that the furnace is on for starters,

then post back with results.

is this something that always was or just started?


08:49PM | 08/15/09
Member Since: 01/09/07
198 lifetime posts
Since it's a 220V compressor (like most AC's), there is no _other_ leg -- it is connected to both legs of the normal 110/220V single-phase supply.


05:40AM | 08/16/09
Member Since: 07/22/04
661 lifetime posts
the actual furnace,(not including the compressor)blower,relays,transformer,operate off 110.try plugging the radio into an outlet that is on the other leg of that stuff to eliminate that possibility.


05:53AM | 08/16/09
Member Since: 07/22/04
661 lifetime posts
pull the compressor disconnect and fire up the air.then turn on the radio.

that would tell you if the compressor is actually generating the noise or something else in the a relay,blower motor etc.


05:46PM | 08/17/09
Member Since: 08/13/09
2 lifetime posts
Will attempt both suggestions tomorrow after work.

This issue began recently. Air conditioning company was out last fall for a repair. Heater on the compressor failed and kept tripping the breaker. (Their solution was to disconnect the heater) No static problems after the "repair".
Click to reply button
Inspiration banner


Post a reply as Anonymous

Photo must be in JPG, GIF or PNG format and less than 5MB.

Reply choose button


Post new button or Login button

To test the boundaries of small-footprint living, interior designer Jessica Helgerson moved her family to a 540-square-foo... Filling an underutilized area beneath the stairs is a smart way to save space. Doing so with a stash of wood, however, is ... The Audubon Society inspired wallpaper in this Adirondack-styled mudroom will get you in the outdoor mood. Grab your coat ... Chalkboard paint opens up endless possibilities for customizing your dresser time and time again. Use chalk to label the c... A fireplace in the bathroom creates the ultimate setting for relaxation. Homeowners often choose electric or gas over wood... This roomy boot tray made from punched metal stands up to all the elements. Station it in your mudroom or at your back doo... There’s nothing like a new set of cabinet hardware to refresh a room. The possibilities are endless: Go modern, rustic, or... FLOR tiles are an affordable way to customize a carpeted floor covering for any space. Make anything from runners to wall-... Chalkboard paint features prominently in this elegant yet unpretentious headboard design. Add a new message daily to reflec... Salvaged boards in varying widths and colors make up the dramatic accent wall in this attic space. The high-gloss white of... The indecisive homeowner need not fret over choosing one (or even two) cabinet colors. The kitchen cabinets in this artist... Incorporate nature into your lighting scheme by securing a dead tree in a concrete mold and draping your pendant lamp from... Simple and striking, a couple of pieces of "lovingly used" furniture creates a special kind of charm. A weathered chair fo... First dress up your metal shelves with a coat of paint in an accent color that complements your kitchen decor. Then arrang... Dark wood shelving and a matching upholstered bench keep this closet sleek and refined. The large window brightens the sub...
Follow banner a
Newsletter icon Flipboard glossy Facebook Twitter Pinterest Youtube Rss icon