Buzzing sound of the MH Ballast?

[kschew1498]

Mine is a ATMAN 5 feet MH......3 X 150W & 5 Actinic PL.......

The ballast buzz like crazy when it is lighted up.....bloody irritating. Thought I can have a peaceful tank with my Chiller in my balcony ....than this buzzing sound from the Ballast!!!

Do you guys MH Buzz...???? Mine I dont think is a electronic ballast!

[kschew1498]

Correction....6 actinic PL lights instead...

I got it modified to separate the ballast out of the casing to reduce the weight and heat......

Damp bloody loud.....anyway to rectify this problem???

[strat]

Hmm..I thought the ballast will only buzz when it starts up??

Maybe MH experts can shed some light?

[lightningstrike]

hmmm.... my MH external ballast (not atman) buzz only at the initial start up. no noise after 5 mins.

[alanseah]

maybe can check your wiring to see if it lose or what...

for mine I only get to heard a soft buzz sound from my 150w ballast when it start only and quiet all the way..

for me 2 250w coralvue ballast it dont even have any noise at all..

[kschew1498]

Is it??? Shit.... ...mine buzz all the way......like a compressor in the house...... ....must do something to it!!!!

Any advise what I should do?

The last thing would be to relocate the ballast to the balcony but worried....the casing is not weather proof.......danger!!!

How huh??!!!

[dersuz]

Make sure your ballasts are tightly screwed onto the casing with screws and nuts, if not there will be some vibration cause.

Also, from the pic it seem your left ballast is touching the left casing. Try to keep a distance away from both sides of the casing.

[DaY]

Trying using a eballast to test out? Coralvue Eballast for 250w is extremely quiet.. Even during startup, no sound can be heard..

[giantbicycle]

My victron MH 250watt DOnt buzz all the wait...only starting for 3mins..

[ervine]

My victron MH 250watt DOnt buzz all the wait...only starting for 3mins..

likewise..

[ben]

The buzzing sound means ur ballast is losing out its performance and will breakdown soon. Usually an asian brand ballast wont last long. replace to a german brand and u will be assured the life is very long.

[kschew1498]

Open up the metal box to check just now....isolate it by shuting down the Left and right MH (left the centre MH still on).....buzzing sound gone! ......On again.....the buzzing sound comes back ......on close hearing......Sigh! .....one of the ballast is making the stupid buzzing noise......try losening the nut.....still buzz but softer now.

Guess got to replace one! Just like what Ben said.....maybe end of life already.....

[tidur]

Open up the metal box to check just now....isolate it by shuting down the Left and right MH (left the centre MH still on).....buzzing sound gone! ......On again.....the buzzing sound comes back ......on close hearing......Sigh! .....one of the ballast is making the stupid buzzing noise......try losening the nut.....still buzz but softer now.

Guess got to replace one! Just like what Ben said.....maybe end of life already.....

maybe can try rubber or foam to insulate the tthem..

the sound may be cos by magnitic field..

causign the casing to vibrate as well

[kschew1498]

maybe can try rubber or foam to insulate the tthem..

the sound may be cos by magnitic field..

causign the casing to vibrate as well

Thanks....will try that to see if I can save some money...hehe