No power to garbage disposal and dishwasher after new install
Replacing a garbage disposal often trips the breaker or unseats a wire in the outlet box they share, cutting power to both appliances at once. Because the circuit is overloaded or a connection came loose during installation, neither unit will turn on until the breaker is fully reset or the wiring connections are checked.
What people tried
Every workaround mentioned in the threads below. We haven’t tested any of them — and nobody here is claiming they worked.
- 1Checking for electricity on the breaker with a tool
- 2Considering whether to call a plumber or an electrician
- 3Check the wires and connections with a voltmeter or multimeter
- 4Inspect the breaker and the disconnect box for fuses or incorrect upside-down installation
In their words
Unedited, grouped by where they were said, most upvoted first within each place, each linked to the thread it came from.
r/appliancerepair1 person · September 2026
Where this came up
People with this problem also raised
- 11Electric oven won't work after power outage
- 3Refrigerator stops cooling properly after being moved on its side
- 5Dryer sparked during reassembly and won't turn on
- 2Furnace won't turn on after new AC installation
- 3Why do multiple electrical accessories fail when starting the car?
- 9Thermostat showing low voltage and no power