The short answer
F4E3 on a Maytag dishwasher is the control reporting a fault in the heating circuit. Read the table for the documented wording, then work down the ranked causes rather than across them. It is usable cold, but not if anything smells hot.
The documented code and its meaning
Reference| Code | Meaning |
|---|---|
| F4E3 | Potential Cause: Heating Error |
What you actually observe
- The code appears late in the cycle rather than at the start — Late means the temperature was never reached; early means the circuit was rejected.
- Drying is poor although everything else looks normal — The heating stage is the one that failed.
- A faint smell of hot dust when heat is first called for — Worth reporting, and worth stopping the cycle over if it is strong.
- NEAR MISS — nothing runs at all — That is a supply or control question first.
Causes, most likely first on this dishwasher
- A heating element that has gone open — An element fails open far more often than it fails short, and the machine then runs a full cycle cold.
- A thermal cut-out open and not reset — A cut-out opens for a reason, so the reason is worth more than the part.
- The thermistor that reports water or air temperature — A sensor reading low makes the control heat forever and then give up, which is the same code from the other direction.
- The control relay that switches the element — Relay contacts weld and burn; a real cause, and the last one to buy a part for.
Check in this order, and why
- Check whether the load comes out warm at the end of a cycle — Cold at the end is the single most useful observation for this family.
- Note how far into the cycle the code appears — Early in the cycle points at the circuit; late points at a temperature never reached.
- Ask whether the supply is shared with another heavy load — A supply problem reads as a heating problem in the control log.
- Leave element and cut-out to a technician — Element and cut-out are both behind panels and both on the mains side.
What an owner can safely check
- Run one ordinary cycle and feel the load at the end — Cold, warm or hot — that one word shortens the diagnosis considerably.
About 60 min
- Power the unit down at the breaker for a minute and restore it — A latched heating fault sometimes clears; one that returns is a hardware fault.
About 3 min
- Stop before any panel comes off — Every part in this circuit is on the mains side, so the owner checks end here.
Before anything is opened
Safety
Before any panel comes off, unplug the appliance or switch off its breaker: a capacitor can hold a charge after the power is off. In a dishwasher the wiring and the water are inches apart, and the sump often holds water after a cycle has ended. Check the base before assuming it is dry. The switches on the door are there to cut power at a particular moment. Leave their wiring as it was found.
When this stops being an owner job
Arrange a visit as soon as a cycle finishes cold, or the code returns after a power-down. Past there the work needs a meter or a panel removed, and the base is out of reach until the unit is drawn forward from under the counter. Three things override that timing: a burning smell, scorch marks near the controls, and a breaker that trips on start-up. Any of them means stop and call now.
Nearest error-code pages
What this page does not cover
Treat this as the family-agnostic reading of F4E3 for Maytag dishwasher models on the common control platform. What it is not: a reading for an older control generation that shows the same characters for something else, and not a source for wiring colours, pin numbers, torque values or part numbers. Those differ family by family. A family or model page, where one exists, is the more specific answer and should be followed instead; the index linked below is where they are collected.
Other Maytag dishwasher codes
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