Home Fault Codes

Maytag Dishwasher Error Code H2O: Meaning and Fix

H2O
How H2O appears on a Maytag dishwasher display.
Maytag dishwasher Valve Inlet (part number W11175771), the component to check for code H2O (shared reference photo for this part type)
Product photo courtesy of AppliancePartsPros.com

Reading the dishwasher display

A dishwasher reports its fault in the display window, or by blinking a cycle light a set number of times with a pause between groups. Count the blinks and pauses before opening the door. Maytag shares the Whirlpool pairing: read the first group, then the sub-code that follows it.

Maytag appliances are built by Whirlpool Corporation on shared platforms, which is why Maytag codes often match Whirlpool ones. Maytag washers, dryers and ranges commonly show F-codes with an E sub-code, or flashing keypad lights. The codes apply to model numbers such as MDB7600AWB, MDB7600AWW and PYE2300AYW; check the label on your unit to confirm yours.

What causes H2O

How to fix it

  1. Cycle the power: switch off the dishwasher breaker for about a minute (or unplug it if you can reach the cord), restore power and run a short cycle.
  2. Confirm both hot and cold taps are fully open and the supply hoses are not kinked or crushed behind the unit.
  3. Disconnect the hoses, clean the small screens at the valve inlets and flush each hose into a bucket to check flow.
  4. Run a short cycle and listen for the valve to click and water to arrive; note whether the level rises.
  5. If the valve does not open, check its connector and coil, then replace the inlet valve if the coil is open.
  6. Run a full short cycle or function again and confirm the code stays gone before putting the appliance back into normal use.

Parts you may need

PartPart no.Buy
Valve InletW11175771Find part

Part numbers are OEM references; confirm fit by your model number before ordering. Some links are affiliate links; we may earn a commission at no extra cost to you.

Questions

What does H2O mean on a Maytag dishwasher?

It is a fault code from the Maytag control. It indicates a problem with the water fill circuit, specifically the not detecting water. A power reset is the first thing to try.

Can I keep using the dishwasher while it shows H2O?

You can try it after a power reset. If the code returns, the affected function may not run properly, so it is worth fixing soon before it causes a bigger failure.

Do I need a technician to clear H2O?

Many owners can fix it themselves. Start with the reset and the inspection steps, and only call a technician if the part tests bad and you do not want to replace it.

Other Maytag dishwasher codes

Maytag dishwasher Facia Control Panel (part number 99002521), the component to check for code 1 Pause 1 Pause1 Pause 1 PauseControl Module faultMaytag dishwasher Valve Inlet (part number W11175771), the component to check for code 10 Pause 5 Pause10 Pause 5 PauseDiverter Leak faultMaytag dishwasher Facia Control Panel (part number 99002521), the component to check for code 6 Pause 1 Pause (shared reference photo for this part type)6 Pause 1 PauseUser Interface faultMaytag dishwasher Valve Inlet (part number W11175771), the component to check for code 8 Pause 1 Pause (shared reference photo for this part type)8 Pause 1 PauseNot Detecting Water faultMaytag dishwasher Valve Inlet (part number W11175771), the component to check for code 8 Pause 4 Pause (shared reference photo for this part type)8 Pause 4 PauseWater fill circuit faultMaytag dishwasher Valve Inlet (part number W11175771), the component to check for code 8 Pause 5 Pause (shared reference photo for this part type)8 Pause 5 PauseFill Valve Stuck Open fault

Sources

Part numbers are OEM references; confirm fit by your model number before ordering. Meanings compiled from manufacturer and parts-retailer documentation; see sources below. Unplug the appliance before opening it.

Applies to models including MDB7600AWB, MDB7600AWW, MDB9100AWW, MDB8600AWW, MDB7100AWW, MDB7100AWB, MDB6000AWW, MDB9100AWB.