Regular switch that hums
#1
Member
Thread Starter
Regular switch that hums
Hi,
I have a regular switch that hums and I'd like to stop the humming.
It is not dimmer switch.
It is controlling an array of 20 10w 24v ridge halogens.
The hum definitely comes from the switch, not from the lights.
It has hummed since it was installed and the switch was supposed to be new then.

Should I just replace the switch?
Thank you!
I have a regular switch that hums and I'd like to stop the humming.
It is not dimmer switch.
It is controlling an array of 20 10w 24v ridge halogens.
The hum definitely comes from the switch, not from the lights.
It has hummed since it was installed and the switch was supposed to be new then.

Should I just replace the switch?
Thank you!
#2
Member
#1 Looks like a cheap switch.
#2 Never should have been back stab like that, needs to be under the screws on the side of the switch.
#2 Never should have been back stab like that, needs to be under the screws on the side of the switch.
#3
Member
Thread Starter
#1 It is a pretty cheap switch $3.
#2 The wires are under the screws. It's just hard to see from this photo.
#2 The wires are under the screws. It's just hard to see from this photo.
#5
Member
Thread Starter
I replaced the switch with a brand new one and the hum is the same.
I noticed that if i leave the switch off for about the 30 seconds the hum starts very loud and rapidly lowers in volume. I leave the switch off for only a few seconds the hum does not start loud.
Also, I think now that perhaps the hum is coming from the wall behind the switch.
I noticed that if i leave the switch off for about the 30 seconds the hum starts very loud and rapidly lowers in volume. I leave the switch off for only a few seconds the hum does not start loud.
Also, I think now that perhaps the hum is coming from the wall behind the switch.
#6
To totally eliminate the switch as the problem just wire nut the two wires together.
Which is why I asked about the transformer.
I think now that perhaps the hum is coming from the wall behind the switch
#8
Member
Thread Starter
Here is the transformer.
Do you have any advice on addressing the humming?
I suppose I will have to replace it.
I have never replaced a transformer before.
Do you have any advice on addressing the humming?
I suppose I will have to replace it.
I have never replaced a transformer before.

#9
Member
Converting the halogens to 24V leds might lower the current drain enough to lessen the hum. But, I'm not sure 24V leds exist in the same size.
You could try to pot the xfmr in a lot of epoxy resin.
Replace the xfmr.
You could try to pot the xfmr in a lot of epoxy resin.
Replace the xfmr.
#13
Member
A switching supply is a good suggestion, but would be DC output. Most Halogens are fine with DC, but it should be verified. Hellog, can you provide details on the lamps you are using?