Whirlpool Dishwasher E1 F1 Error: Control Board Relay Fault

Quick Answer

E1 F1 on a Whirlpool dishwasher is a relay fault on the main control board. Unlike most other error codes that point to a field-replaceable component, E1 F1 almost always requires main control board replacement (W10695459, $150-280). Before ordering the board, verify the symptom is not caused by a wiring harness short that damaged the relay: inspect the harness connectors at the board for burn marks.

When E1 F1 shows up, your dishwasher basically can't talk to its own parts anymore. The relay that switches power to the motor or heater is toast. Ignore it and you've got an expensive paperweight. I've shown up to calls where someone ran three more cycles hoping it'd clear, and by then the harness connector had melted right into the board. Don't do that.

WhirlpoolDishwasherSeverity: highDifficulty: advanced78% DIY Success

Time to Fix

40–90 min

Difficulty

advanced

Parts Cost

$150 – $280

Tools Needed

Torx T20 screwdriver, Multimeter

What Does the E1 F1 Code Mean?

OK so here's the deal with E1 F1: it's the dishwasher's way of saying it's lost control of its own circuits. Most error codes point you at a specific part. This one's different. It's telling you the board itself can't send power where it needs to go. I always check the harness connectors first, but honestly? Nine times out of ten you're looking at a full control board swap.

Most Likely Causes

Based on aggregated repair data, here is the probability breakdown for this error code:

Main control board relay contact failed (welded shut or open)40%

Wiring harness short causing relay overcurrent24%

Age-related relay contact degradation22%

Power surge burning relay contacts14%

Symptoms You May Notice

E1 F1 flashes right when you hit Start, or sometimes mid-cycle when the board tries to kick on the heater
The dishwasher just stops. No beep, no error light, just silence in the middle of a wash.
Dishes coming out cold and still dirty because the heater relay is the specific one that's failed
Faint burning smell from the lower door area, especially if the relay welded closed and cooked something nearby
You can hear the door latch click and the motor try to hum for about 2-3 seconds, then it shuts off

Can you reset a Whirlpool dishwasher to clear the E1 F1 code?

Kill power at the breaker for a full 5 minutes, not just 30 seconds. Come back, flip it on, and wait for the display to light up before you try starting a cycle. If it's a glitch from a power hiccup, this might clear it. But E1 F1 is almost never a software thing. If the code comes back the moment you try to run a cycle, you've got a physical relay failure and no amount of resetting is going to help.

Tools Required for Diagnosis

Torx T20 screwdriverMultimeterFlathead screwdriverPhone flashlight or small headlampNeedle-nose pliers for connector removal

Diagnostic Checklist

Follow these steps in order. We start with the easiest external fixes before opening up the machine.

ComponentComponent Under Test

Expected Range15–30 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
Main Control BoardW10695459 · $150–$280	W10695459	$150 – $280

Frequently Asked Questions

Is it worth replacing a $150-280 control board on an older dishwasher?

I usually tell people that if the tub's in good shape and the racks aren't rusting through, it's worth fixing. These Whirlpool units are workhorses. Spending a few hundred on a board beats spending eight hundred on a new machine that might not last as long. But if your unit's over a decade old, think about the full picture. You could fix the board this year and have a failing pump motor next year. Factor in the overall condition before you order.

Can a bad motor or heater cause E1 F1?

Absolutely. I find this all the time. A failing wash motor or a grounded heating element draws way too many amps and literally welds the relay shut on the board. If E1 F1 showed up alongside poor cleaning performance or cold dishes, don't just swap the board. Check the heater resistance and test the motor for shorts to ground first. Otherwise you're going to burn up a $200 part and be right back where you started two weeks from now.

How do I know for sure it's the control board and not something else?

Check the components the relay controls first. If your heater reads 15-30 ohms and isn't shorted, and your motor isn't shorted to ground, and all the harness connectors look clean and undamaged, then yeah, it's the board. The relay failed internally and there's no way to test it in-circuit with a regular multimeter. At that point you're past diagnosing and into replacing. W10695459 is the part you want, but double-check it against your full model number from the door jamb sticker before you order.

Can I just replace the relay itself instead of buying the whole control board?

Technically yes, if you're comfortable with a soldering iron and PCB work. The relay itself is a standard component, maybe $8 from a component supplier. But you've got to identify the exact spec off the old relay, source it, desolder the old one without lifting the pads, and solder the new one in clean. If you've done board-level repair before, go for it. If not, you'll probably make it worse. Most techs just swap the whole board because at $150-280 it's not worth the risk of destroying the PCB trying to save $140.

My dishwasher still runs sometimes even with E1 F1 showing. Should I keep using it?

I'd be careful. What's happening is the relay is making intermittent contact. Works sometimes, fails sometimes. The problem is when it fails mid-cycle while trying to power the heater or motor, you can create a short condition that damages the harness on top of the board. You might get another week out of it, might get a month. But I've seen people push it and end up needing a harness replacement on top of a board replacement. Get the part ordered and stop running it.

Related Whirlpool Dishwasher Error Codes

Code: F8 E4Whirlpool Dishwasher F8 E4 Error Code: Wash Motor Fault Code: F7 E1Whirlpool Dishwasher F7 E1 Error Code: Heater Circuit Fault

Same Fix Works on These Brands

Whirlpool shares the same hardware platform with these brands. The diagnosis and repair steps are identical.

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Models Known to Experience E1 F1 Errors

This repair applies to most Whirlpool dishwashers with this error code. Common model numbers include:

WDT780SAEM, WDF550SAHZ, WDT730PAHZ, WDT750SAHZ, WDT970SAHZ, WDF518SAHM, WDT720PADE

Written by

Mike Sullivan

Lead Appliance Repair Technician · 20 years experience

Last verified for technical accuracy on March 14, 2026