Maytag Dishwasher Error Codes: Every Fault Code Explained
Quick Answer
Maytag dishwashers share the Whirlpool DTM platform but carry different OEM part numbers and a specific known issue unique to the MDB8959 series: the spray arm bearing hub wears over time and allows the lower spray arm to drop, partially blocking the filter inlet. Before replacing any parts on a Maytag showing either code, check for spray arm hub wobble.
I've been fixing Maytag dishwashers for years and honestly the thing that surprises most people is how often a mechanical issue gets blamed on a bad control board. If you ignore these codes, you're usually looking at a burned-out wash motor down the road, or your dishes just stay dirty until you give up and call someone. Check the spray arm hub first. Seriously, that one check saves a lot of unnecessary part swaps.
MaytagDishwasher
About These Maytag Dishwasher Error Codes
OK so here's the deal with Maytag dishwashers. They're basically ruggedized Whirlpools, which is good news because parts are everywhere and usually pretty cheap. Most of the codes you'll see are F8 or F9 variants, and honestly? About half the time I show up it's a piece of broken glass in the sump or a forgotten toothpick jamming the impeller. Nothing fancy.
Most Common Error Codes
Lower spray arm bearing hub worn, arm drooping and blocking filter (MDB8959 series)40%
F8 E4, F9 E1, or both codes showing at the same time on the display, which usually means one physical problem is screwing up two systems simultaneously.
Machine fills with water, goes quiet for a minute, then just stops, never actually starts the wash spray.
You open the door after a full cycle and there's still a puddle sitting in the bottom of the tub, sometimes with food floating in it.
No water entering the tub at all, you can hear the machine click like it's trying but nothing comes out.
Dishes come out wet but not clean, covered in a cloudy film, which usually means the spray arm's drooping and not spinning properly.
Tools Required for Diagnosis
Phillips #2 screwdriverTorx T20 screwdriverFlathead screwdriverMultimeter (for inlet valve test)Flashlight or headlampOld toothbrush (for filter cleaning)Needle-nose pliersTowels or a shallow pan to catch water
How to Identify Your Error Code
ComponentComponent Under Test
Expected Range500–1500 ohms
ConditionIf Open (OL) or infinite, replace component.
Replacement Parts
If your diagnostic testing proves the component has failed, you will need a replacement. We recommend OEM parts over aftermarket for water-handling components.
Part Name
OEM Number
Estimated Price
Wash MotorWPW10765009 · $80–$150
WPW10765009
$80 – $150
Drain PumpWPW10348269 · $28–$48
WPW10348269
$28 – $48
Water Inlet ValveWPW10327249 · $22–$38
WPW10327249
$22 – $38
Frequently Asked Questions
Are Maytag dishwasher error codes the same as Whirlpool?
Yeah, mostly. The F8 E4 and F9 E1 codes are identical because they share the same DTM control platform. But here's the thing, Maytag uses ruggedized versions of a lot of these parts, so when you're ordering replacements, look for the WP prefix on the part number and double-check it against your specific model. I've put a generic Whirlpool pump in a Maytag and had the wiring harness connector not quite fit right, even though the pump looked identical. Always match the full part number.
Why do F8 E4 and F9 E1 appear together on some Maytag dishwashers?
This happens when one physical problem affects both the wash and drain systems at the same time. On the MDB8959 series, a worn spray arm hub lets the arm sag down and partially block the sump filter. That creates a restriction that strains the wash motor and slows the drain pump simultaneously, so the board logs both faults in the same cycle. I always tell people to check for that physical blockage before they spend $80 on a new motor. Nine times out of ten, it's not the motor.
How do I reset a Maytag dishwasher after fixing the problem?
Press and hold the Cancel or Drain button for three seconds to clear the active fault. If that doesn't work, go flip the house breaker for a full minute. That forces the logic board to fully reboot. When power comes back, latch the door and press Start within three seconds or the firmware sometimes throws a false error right away. It's a quirky little behavior specific to these boards, but once you know about it, it's easy to work around.
How often should I clean my Maytag dishwasher filter?
Honestly, once a month is ideal if you're running it daily. But realistically most people never clean it until something breaks. If you're seeing cloudy dishes or slow draining, the filter's probably overdue. It takes literally two minutes, twist it out, rinse it under hot water, done. I've pulled filters out of machines that looked like someone poured concrete in there. Don't wait for a code to show up before you check it.
Is the spray arm hub replacement something I can do myself?
Totally. This is probably one of the easiest fixes on a dishwasher. The spray arm assembly just lifts or unscrews from the center post depending on the model, and the whole assembly including the hub usually runs about $15 to $30 on the major parts sites. You don't need any special tools, it's literally pull the old one off and press the new one on. Five minutes max once you've got the part. Just make sure you order the assembly that matches your specific model number, not just the brand.