my 400 watt hps. light keeps going off

[buzzed day]

hello all my 400 watt light will come on for a few minutes then shuts off. the ignitor seems ok.digital ballast. was staying on for 20 min. or so now mayby a min. if that. can anyone tell me if it is the ballast or the capacitor? thanks for all your help. have a B.D. day,peace and God bless!!!

ps. if it is the capacitor, there are 2 kinds as i understand it.does it make a difference wich one? thanks again all.

 

[Jhhnn]

That's not a very clear description of the equipment. If the ballast is digital, it doesn't have a user serviceable capacitor. If it's magnetic, it'll have 3 internal components- chunky transformer, ignitor, capacitor.

Eliminate the timer for troubleshooting purposes. It could just be that.

If it's digital, it could be anything. If it's magnetic, I'd suspect a bad bulb. New bulbs are inexpensive, and you'll need a new one in time. Try that first, see what happens. You need at least 1 known good component to troubleshoot.

 

[growshopfrank]

Buzzed it sounds like the lamp has reached the end of its life cycle
The two little cans are the capacitor (two wires) and the ignitor or starter (three wires)
Be aware that the capacitor can hold a charge so be careful

 

[HighDesertAz]

The bulb can also be the problem in digital ballasts. Applesauce and vertigo0007 had the same problem a couple years a go. Quantum Ballast. New bulb fixed it.

 

[Jhhnn]

The bulb can also be the problem in digital ballasts. Applesauce and vertigo0007 had the same problem a couple years a go. Quantum Ballast. New bulb fixed it.

For sure.

 

[buzzed day]

been looking every where for my spare bulbs will find today i hope.if thats not it i'll check out insides. will post more tonight thankyou all. have a B.D. day,peace and God bless !!!

 

[Scrappy-doo]

It's the bulb.

 

[Jhhnn]

been looking every where for my spare bulbs will find today i hope.if thats not it i'll check out insides. will post more tonight thankyou all. have a B.D. day,peace and God bless !!!

There's really no point in messing with it until you've tried a different lamp, other than curiosity.

 

[supreme bean]

its called CYCLING.it happens when the bulb is finished.

 

[buzzed day]

it was the BULB YEAAAA much cheaper thanks all for the help and i hope all of you have a buzzed day ,peace and God bless !!!

 

[supreme bean]

i try and change my hps every six months.im using mh now which lasts about 9 imo.