Error Code: E30 Difficulty: Hard
Problem: Voltage is too high.
How to Fix E30 Error (Step-by-Step)
- Turn off the circuit breaker for the dishwasher to completely cut off the power.
- Slide the dishwasher out from its installation spot to get to the control board, usually located in the door panel or at the base.
- Take a clear picture of the wire connections before you start, for easy reference.
- Carefully unplug all the wires connected to the control board.
- Remove the screws that are holding the control board in place and take out the old board.
- Put the new control board in the same spot and secure it with the screws.
- Reconnect all the wires by looking at the picture you took, put the dishwasher back, and turn the power on.
- Turn the appliance off, wait about 2 minutes, then turn it back on.
Next Steps and Parts
Verified Compatible Alternatives:
- 00438026
- 00622058
- 10028963
Still Not Working?
If the replacement part didn’t fix the issue, you may have a wiring problem or main board failure.
When It’s Better to Replace Than Repair
Sometimes replacing an appliance makes more financial sense than putting more money into repairs.
Here are a few signs it may be time to shop for a new one:
- ✓Appliance over 8-10 years old
- ✓Repair cost over 50% of replacement
- ✓Multiple recent breakdowns
- ✓Major component failure
Recommended Replacement Options
Why Upgrade via Amazon?
- Fast, Scheduled Delivery – You pick the date and time
- Expert Installation – Professional setup available for most models
- Old Appliance Haul-away – They’ll take your broken unit when they leave
- Easy Returns – Buy with confidence from a leader in customer service
As an Amazon Associate, we earn from qualifying purchases.

