The F3 E2 code signifies that your dryer has lost communication with its moisture sensor bars. In my experience, this is usually caused by a coating of dryer sheet residue on the sensors or a wire that has vibrated loose from the front bulkhead.
F3 E2 basically makes your dryer fly blind. It can't tell wet clothes from dry, so it gives up. Ignore it long enough and you're either running timed cycles forever or your clothes come out damp every single time. I've seen people live with this for months not realizing a two-minute cleaning job would've fixed it. Don't be that person.
Phillips #2 screwdriver, Flathead screwdriver or putty knife (for popping top panel clips)
What Does the F3 E2 Code Mean?
So here's the deal with F3 E2: your dryer's control board is trying to read the moisture sensors and getting nothing back, an open circuit instead of a resistance value. And it won't just keep running blind, it'll shut the cycle down or refuse to start one. The good news is that nine times out of ten you won't need any parts. This is usually a cleaning job, maybe a wire, and it's way cheaper than the $200+ service call you're probably dreading right now.
Most Likely Causes
Based on aggregated repair data, here is the probability breakdown for this error code:
Sensor bar residue55%
Wiring harness issues30%
Control board failure10%
Damaged sensor housing5%
Symptoms You May Notice
The dryer runs for maybe 5-8 minutes on an auto-dry cycle and then just stops, leaving clothes that are obviously still wet.
You see F3 E2 flashing on the display right after the cycle starts, sometimes within the first minute.
Auto-dry and sensor-dry settings act like they're broken, but if you switch to Timed Dry the machine runs fine.
The cycle timer counts down but your clothes come out damp or cold because the dryer's cutting heat based on bad sensor data.
Sometimes it's intermittent, works fine for a week, then throws the code again on the next load, which almost always points to a loose connector rather than a completely dead sensor.
Can you reset a Whirlpool dryer to clear the F3 E2 code?
After you've done the repair, press Cancel or Power twice to clear the code. Then start a normal cycle and watch to make sure F3 E2 doesn't pop back up within the first few minutes. If it does, the circuit's still reading as open. If the code is totally gone, unplug the machine for 60 seconds anyway to let the board fully reset before putting it back in service. That's it.
Tools Required for Diagnosis
Phillips #2 screwdriverFlathead screwdriver or putty knife (for popping top panel clips)Nut driver set (1/4" and 5/16")MultimeterRubbing alcohol (91% isopropyl)Cotton balls or microfiber clothFlashlight or headlamp
Diagnostic Checklist
Follow these steps in order. We start with the easiest external fixes before opening up the machine.
ComponentComponent Under Test
Expected Range0–2 ohms
ConditionIf Open (OL) or infinite, replace component.
Frequently Asked Questions
Can I still use my dryer if it shows the F3 E2 code?
Yeah, you can. Just switch to Timed Dry instead of any of the sensor or auto-dry settings. Timed Dry completely ignores the moisture sensors and just runs for whatever time you dial in. It's not as efficient, you'll probably over-dry some loads, but the dryer works fine mechanically. Just don't forget to actually fix the sensor issue eventually because running everything on timed cycles gets old fast and your electric bill will notice.
What's the most common cause of F3 E2?
Honestly? Dryer sheet residue. It's just wax coating those sensor bars until the board can't read them anymore. I'd say it accounts for maybe 40-50% of the F3 E2 calls I go on. Two minutes with a cotton ball and some rubbing alcohol and it's done. The second most common cause is a loose wiring connector at the sensor housing, which you can fix with your fingers in about 30 seconds once you pop the top panel.
Where exactly are the moisture sensors on a Whirlpool dryer?
They're the two thin curved metal strips inside the drum on the front bulkhead, right on the plastic housing that surrounds the lint trap slot. You can see them without opening anything, just open the door and look at the front wall of the drum. They'll be on either side of the lint trap opening. When clothes tumble, they brush against those bars and the board reads the resistance to calculate how wet they are.
How much does it cost to fix F3 E2?
If it's just dirty sensor bars, the fix costs you basically nothing, maybe $2 worth of rubbing alcohol. A replacement sensor harness if the wire's broken runs $15-$25 online. If it's the control board, that's where it gets painful, anywhere from $150 to $300 for the part, plus your time. So before you even think about ordering parts, clean those bars first. Seriously. I've had customers pay me $120 for a service call just to watch me wipe the sensor bars for two minutes.
How do I know if it's the control board and not the sensor?
Test everything else first. Clean the bars, check the wiring connector, run continuity on the wire. If all of that checks out perfectly and the code still throws within a minute of starting a cycle, that points to the board. You can also swap in a known-good sensor harness if you have one handy. If the error persists with a brand new sensor and solid wiring, the board's the only thing left. Don't buy a board until you've eliminated every other possibility first though.
Models Known to Experience F3 E2 Errors
This repair applies to most Whirlpool dryers with this error code. Common model numbers include: