Turning OFF Light Switch Causes AM Radio Interference ? - Electrical - DIY Chatroom Home Improvement Forum

Go Back   DIY Chatroom Home Improvement Forum > Home Improvement > Electrical


Thread Tools Display Modes
Old 10-18-2011, 11:05 PM   #1
Join Date: Oct 2011
Posts: 1
Rewards Points: 10

Turning OFF light switch causes AM radio interference ?

AM/FM clock radio plugged into wall outlet gets heavy interference on the AM radio band if the light switch in the next room is turned OFF. No inteference when switch is ON. Two different 110v circuits involved. Switch controls a ceiling light/fan combo.
Any ideas? Thanks.



gcmackinnon is offline   Reply With Quote
Old 10-18-2011, 11:11 PM   #2
liscenced electrician
Join Date: Jul 2008
Location: Oregon coast
Posts: 1,012
Rewards Points: 538

sounds like you just seem to be getting better reception when there is power in the wire. I can't tell you what causes this (youd need to talk to a scientist) but i can tell you im 99% sure there isn't any real issue. Perhaps you could label the switch with the word "antenna"


jimmy21 is offline   Reply With Quote
Old 10-18-2011, 11:13 PM   #3
Join Date: Dec 2006
Posts: 17,158
Rewards Points: 6,652

Been like that since the dawn of time with AM radios.
gregzoll is offline   Reply With Quote
Old 10-19-2011, 09:13 AM   #4
joed's Avatar
Join Date: Mar 2005
Location: Welland, Ontario
Posts: 11,811
Rewards Points: 10,414
Blog Entries: 11

Is the switch lighted? What type of lamps in the fan?
joed is offline   Reply With Quote
Old 10-19-2011, 12:03 PM   #5
Semi-Pro Electro-Geek
Join Date: Jul 2009
Location: Arizona, USA
Posts: 2,936
Rewards Points: 2,772

Is the switch a dimmer, fan speed control, wireless fan control, lighted switch, or anything else other than just a totally basic plain switch? If so, the culprit is the electronics in the switch. If not, then we'll have to keep hunting...
mpoulton is offline   Reply With Quote

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

Similar Threads
Thread Thread Starter Forum Replies Last Post
Ceiling Fan and Light Switch Problem desiboy Electrical 3 03-03-2011 12:09 PM
HELP.. trouble adding light to single pole switch RickDel Electrical 13 09-09-2009 10:18 PM
Motion Light tripping GFCI? Jonobp Electrical 5 09-07-2009 07:52 PM
Confused by switch w/indicator light install... WaldenL Electrical 7 08-29-2009 09:02 AM
no power going to the light switch baseballfan Electrical 18 09-08-2008 05:35 PM

Top of Page | View New Posts


Search Engine Friendly URLs by vBSEO 3.6.1