Supply voltage below 85 volts: Bosch Dishwasher E:29

What E:29 means

E:29 is the undervoltage entry: the machine measured supply voltage under 85 volts in North America. What an owner sees is a cycle that drags on, rinses and dries poorly, or quits partway. The chart sends you to the house wiring connections, because the trouble lies on the supply side, not inside the appliance itself.

Common causes of E:29

Loose splice in the branch circuit or at a junction box
Circuit overloaded by other kitchen appliances
Supply sag upstream of the house

✓ One safe check you can try

1. Find out what else shares the dishwasher's circuit; a disposer, microwave or countertop appliance is common. 2. Notice whether the signs appear when those are running too. 3. Stop there, because measuring voltage under load is an electrician's work.

! Why to stop there

Live voltage measurement carries real shock risk.
Replacing appliance parts will not cure a wiring problem.
A loose connection at a junction box can heat up and is a fire concern.

Opening a panel yourself does not automatically cancel a manufacturer warranty, but it can cause accidental damage, and some manufacturers set their own service conditions. Check your warranty terms, or ask us, before deciding.

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Other Dishwasher codes

2Bosch Dishwasher Service Test Result 2: Heating Group 4Bosch Dishwasher Service Test Result 4: Water Filling 8Bosch Dishwasher Service Test Result 8: Temperature Sensor 16Bosch Dishwasher Service Test Result 16: Spray Diverter E:30Bosch Dishwasher E:30, voltage too high and the machine shut down E:31Water in the zeolite container - Bosch Dishwasher E:31 FBosch Dishwasher F on an older display (water filling) 2HBosch Dishwasher 2H: Long Cycle Warning on Older Displays

E:29E:29 questions

Could a power company issue cause E:29?

It can, since low voltage sometimes originates upstream. An electrician or the utility can measure the supply, and we can tell you whether the dishwasher itself behaves normally.

Is it okay to keep running the dishwasher?

Short-term, yes, but low voltage strains motors, and cycles may drag on or stop. If you can, avoid running other big appliances at the same time until it is looked at.

Do you repair house wiring?

No, that belongs to a licensed electrician. We check the appliance, confirm it is not the cause, and tell you honestly, so you do not pay for parts you do not need.