Hi and welcome to Just answer.
initially, can you specify the exact kind of warning lights you received and the location.
On this particular machine, im assuming its a classic, there is only one warning light, just under the main knob, triangle with exclamation point. This is the one that is flashing. also to give you more info, when we start the machine it seems to go through its normal cycle, we can actually use the steamer as well
Initially, sorry for the late response. It possibly have airlock in the pump and water intake system
Try to manually prime your machine, for instruction CLICK HERE it supports all gaggia and seaco models.
Sometimes you need to get rough on your machine in able to remove the clog air on water line. slamming the water tank into machine sometimes help. If still, unplug your machine, remove water and turn the machine upside down or shake your machine if possible.
Let me know if you still have questions.
Hope this information will be helpful.
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