My current 25V AC transformer used for zone control hums terribly, conducting up through the floor. Does this transformer hum?
766187
The reason you are hearing the hum is because your transformer plates are slightly loose. The metal plates in the core are laminated and can become separated, you may be able to reduce or eliminate the hum by painting a varnish or shelac onto the core and letting it "soak in". I would suggest several thin coats to do the job. The metal core itself can be loose and vibrate as a whole too so you may need to seal that up the plastic bobbin that the copper windings are wound on. Otherwise if all else fails this unit is quiet, at least the one I got is. You may also try insulating between the transformer and the joist if yours is mountable that way. Hope that helps.
766188
I have not noticed any hum with this transformer. It is well made and should perform well. All transformers do hum a little bit because of the 60 hertz signal but it shouldn't be excessive. Hum can be reduced by mounting on a soft surface such as rubber washers or pad. Loosen and then re-tighten the lamination screws. Loose plates are usually the cause of hum.
766189
The reason you are hearing the hum is because your transformer plates are slightly loose. The metal plates in the core are laminated and can become separated, you may be able to reduce or eliminate the hum by painting a varnish or shelac onto the core and letting it "soak in". I would suggest several thin coats to do the job. The metal core itself can be loose and vibrate as a whole too so you may need to seal that up the plastic bobbin that the copper windings are wound on. Otherwise if all else fails this unit is quiet, at least the one I got is. You may also try insulating between the transformer and the joist if yours is mountable that way. Hope that helps. The reason you are hearing the hum is because your transformer plates are slightly loose. The metal plates in the core are laminated and can become separated, you may be able to reduce or eliminate the hum by painting a varnish or shelac onto the core and letting it "soak in". I would suggest several thin coats to do the job. The metal core itself can be loose and vibrate as a whole too so you may need to seal that up the plastic bobbin that the copper windings are wound on. Otherwise if all else fails this unit is quiet, at least the one I got is. You may also try insulating... » Read More The reason you are hearing the hum is because your transformer plates are slightly loose. The metal plates in the core are laminated and can become separated, you may be able to reduce or eliminate the hum by painting a varnish or shelac onto the core and letting it "soak in". I would suggest several thin coats to do the job. The metal core itself can be loose and vibrate as a whole too so you may need to seal that up the plastic bobbin that the copper windings are wound on. Otherwise if all else fails this unit is quiet, at least the one I got is. You may also try insulating between the transformer and the joist if yours is mountable that way. Hope that helps. « Show Less
766190
I have this in a small mobile home furnace and it had no noticeable him outside of the unit
1220559
I have not noticed any power supply hum at all, it has been an excellent unit for me. It should power a 75 watt radio just fine. It's a 12 amp constant, 14 amp surge power supply, which translates to about 165 watts peak draw at 13.8 volts DC.Source for converting amps to watts: http://www.rapidtables.com/calc/electric/Amp_to_Watt_Calculator.htm
1545108
It sounds like you have the MAINS of the transformer series instead of parallel.. OR you have the 240V version by mistake?
1196917
I would probably try their control before a generic rheostat. From what I've read they can induce hum, and possibly shorten the life of the fan. That said, I use a variac auto-transformer for my fan. I already had the variac, which I use for electronic repair. It works very well, infinitely adjustable, and is very quiet! This fan seems to be very good quality, and I am quite pleased with it.
2255912
Yes. Will do the job. We have been very happy with our purchase. Portable but a bit heavy as with any transformer. Noise free operation.
787167
I had the same problem, I had to move it, it was getting AC noise from the wall outlet, make sure all your power cords are away from it. (good luck)
558409
You're experiencing ground loop hum. Try using batteries only. If you still here loud hums, send it in for repair.
1712016
Mine work fine on my existing 12 Volt AC transformer. Even though this MR16 is dimmable you cannot use a solid-state dimmer on a transformer.
1892184
I had the same issue with the unit i installed. I looked closer at the specs and realized it is a dc 12 volt unit. If you are using an ac transformer, it will not function correct.
2231423
I have two installations with two pucks in one and six in the other. It isn't noisy for me. I'm using the recommended Meanwell transformer. Could it be your transformer that is making the noise?
951597
Don't know.-- Added my own meter lights and replaced an internally shorted transformer with a bigger and better one out of the junk box. Also put higher capacity pass transistors on my second unit. Yeah the fan gets growly; other than that they both work.
2277216
Don`t! It is a worthless P.O..S. I purchased one and found out it is not truly isolated. I had less ground loop hum with a One Spot and it too was awful. Next step for me is true isolated transformer power, like a Pedal Power. The one I'm now considering has truly isolated isolated transformers and is offered by Rocktron.
1196918
I would probably try their control before a generic rheostat.From what I've read they can induce hum, and possibly shorten the life of the fan. That said, I use a variac auto-transformer for my fan. I already had the variac, which I use for electronic repair. It works very well, infinitely adjustable, and is very quiet!This fan seems to be very good quality, and I am quite pleased with it.
905795
This should not happen if U R nor over loading the unit. The older 70 v amps were extremely well built with large coils, transformers, components & were almost bullet proof. This unit is very light & may not be able to perform as well. If still under guarantee Pyle may fix the problem for U. Hope that helps.
1866983
Mine are 110 volt with power transformers. I did experience some problems with the connections since the pins are so fine that they tend to get a little bent. Also try flipping the connection over. I finally started making sure everything was plugged together correctly before I put them up. Beats climbing up and down the ladder all the time.
993465
Get a 24V transformer (like we have in the states) and you're golden!On second thought, your 50 Hz vs our 60 Hz might be an issue - with the thermostat, not the transformer. Check with an electrician or call Honeywell customer support.
1688168
It is a bad unit. I had to send mine back.I just read the answer below mine, did you put the ferrite choke on the unit on the power cord? Hello! This unit should be ready to go out of the box. That hiss or hum could be heard over spoken words too. If you can send it back.