Hi, my brand-new Bosch dishwasher won’t power on. What can be the problem?
Hi, I’m Mike, your appliance troubleshooting expert—when you press the Power button, is the display completely dark with no lights or beeps?
Yeah, totally dead; it was installed yesterday and it’s plugged into a GFCI outlet under the sink—we’re renting 😬.
Is that GFCI showing a tripped indicator or was it recently reset after the install?
I don’t think it’s tripped; a phone charger works there and the little light on the outlet looks normal.
Is there a wall switch near the sink or counter that might control that outlet and be switched off?
There is a random switch by the sink we never use—it’s off—but I thought that was just for the disposer.
What’s the exact Bosch model number from the door sticker and has it powered on even once since delivery?
It’s SHEM3…, and no, it’s never powered on since they installed it yesterday.
Thanks—since a brand-new SHEM3-series is completely dark, the most likely causes are: 1) a switched outlet feeding the dishwasher that’s off (common in kitchens), 2) a tripped or shared breaker/GFCI upstream even if the receptacle tests with light load, 3) a loose plug or miswired outlet (hot/neutral reversed), 4) a loose or incorrect connection at the dishwasher’s power cord/junction box under the unit, 5) a misaligned door latch switch or an unplugged user-interface ribbon, and less commonly 6) a failed control board out of the box. Because this is a new install, the priority is to have the retailer/installer verify the outlet is unswitched and correctly wired and to recheck the junction-box connections; avoid opening panels yourself due to electric shock risk. If an electrician is needed, ask them to confirm correct polarity, a dedicated 120 V circuit with proper GFCI/AFCI behavior, and a continuously hot receptacle; if any burning smell or a breaker won’t reset, stop and call a licensed pro immediately. If you’d like, I can walk you through a few safe, noninvasive checks to narrow it down further.