Forum » Hydor ETH not turning on, help?

Installed a Hydor ETH on an Eheim 2126, return line. Heater is vertical per instructions. When first plugged in, buzzed for a few seconds. Stopped and seemed to be running fine, light on. Casing was very warm, as expected. Next day, no heat. Will not turn on. Should be a warranty issue I think? How do I go about replacement procedures?

Dear Customer, could you so kind to check the batch number of your ETH (3 figures on the grey label)? and also tell us from which country you are writing? Thanks for cooperation.