The short answer
A Maytag dishwasher showing F4E2 has flagged the heating circuit. The exact documented wording is in the table; the order of the checks below it is the part worth reading twice. A cold cycle is inconvenient rather than dangerous; stop if you smell burning.
The documented code and its meaning
Reference| Code | Meaning |
|---|---|
| F4E2 | Potential Cause: Heating System |
What you actually observe
- The cycle runs far longer than it used to before stopping — A control waiting for a temperature it never reaches.
- 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.
- NEAR MISS — nothing runs at all — That is a supply or control question first.
Causes, most likely first on this dishwasher
- A heating element gone open — Elements fail open far more often than short, and the machine then runs a full cycle stone cold.
- A thermal cut-out that has opened and not reset — The cut-out opens for a reason, so the reason matters more than the part.
- The thermistor reporting water or air temperature — A sensor reading low makes the control heat indefinitely and then give up, which is this same code from the other direction.
- The control relay that switches the element — Relay contacts weld and burn; it is a genuine cause, and the last one to buy for.
Check in this order, and why
- Note whether the load is warm at the end of a cycle — Cold at the end of a cycle is the single most useful observation in this family.
- Note how far into the cycle the code appears — Early points at the circuit; late points at the temperature never being reached.
- Ask whether the supply is shared with another heavy load — A supply problem reads as a heating problem in the control log.
- Leave the element and the cut-out to a technician — Both are behind panels and both are on the mains side.
What an owner can safely check
- Run one ordinary cycle and feel the load at the end — Note whether it is cold, warm or hot: that one word shortens the diagnosis considerably.
About 60 min
- Drop the breaker for a minute and restore it — A latched heating fault sometimes clears; one that returns is hardware.
About 3 min
- Stop before any panel comes off — Every part in this circuit is on the mains side, so this is where the owner checks end.
Before anything is opened
Safety
Take the power away first: unplug the appliance or switch off its breaker before removing any panel, since 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. Do not re-route or hold closed anything on the door circuit; it takes power away at a point the design depends on.
When this stops being an owner job
Book the visit as soon as a cycle finishes cold, or the code returns after a power-down. At that point the next step is a meter or a panel off, and the base is out of reach until the unit is drawn forward from under the counter. Do not wait at all if there is a burning smell, visible scorching, or a breaker that trips the moment the appliance starts. Those three override everything above.
Nearest error-code pages
What this page does not cover
This is the platform-level reading of F4E2: it holds for the Maytag dishwasher families that share that control generation. It stops short of older platforms that display the same characters for a different condition, and it carries no family-specific detail at all — no wiring colours, no pin numbers, no torque figures, no part numbers. Those belong on the page for the family concerned. Where such a page exists it outranks this one, and the code index below is where it is listed.
Other Maytag dishwasher codes
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