Contactor Relay thud and loud buzzing! Help!

willc

Well-Known Member
I turned on my new Dimlux Expert 600w today and the contactor relay made a very loud thud and a constant buzz thereafter. The grow light stayed on but the Red LED warning light was on. It didnt do this when i tried it yesterday. Initial thud but no buzzing and green LED light.

Im guessing the contactor is fucked but any ideas why this would happen? Really dont want to take any fire risks obviously.

The contactor had about 2 years of use before with a 250w lamp. Do they need replacing often?
 
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