The short answer
On the NED dryer this symptom is usually the cycling thermostat, the part whose whole job is to interrupt the heat, which means a failure in one direction looks exactly like no heat at all. The trailing letters in these model numbers mark finish and trim, not a different mechanism, which is why one ranking covers the whole family.
What you observe
- The wall flap outside never opens while the machine runs — Nothing is getting out of the duct, whatever the dryer is doing.
- The drum turns normally and nothing ever gets warm — Tumble without heat splits the list immediately: the mechanical side is fine and the heat circuit is not.
- Clothes come out damp after a full cycle — Often airflow rather than heat, because wet air that cannot leave takes the moisture straight back.
- Heat at the start of a cycle and none later — Protection opening as the machine warms, which points backwards at airflow.
- NEAR MISS — the drum does not turn at all — No tumble is a belt, motor or switch fault and belongs on the will-not-start page rather than this one.
Causes, most likely first on the NED family
- Cycling thermostat stuck open — First on this family. Stuck open it never lets the heat come on; stuck closed it never lets it stop, and the second version is what trips the protection above it.
- One supply leg lost at the breaker or the outlet — Second on these models. It is the cause that makes people replace a perfectly good element, and it costs nothing to rule out.
- Timer or control board not calling for heat — Third. A worn timer contact or a failed board output leaves everything else working while the heat request never leaves the console.
- Moisture sensor ending the cycle before heat is needed — Last of the four, and the one to reach for only when the others are clean. The test is simple: a timed cycle bypasses the sensor completely.
- Body: A brand-generic article on this symptom starts with the blocked or restricted exhaust. Here the cycling thermostat moves ahead of it, because the models in the table share the same construction, so what is true of one is true across the family.
Check in this order, and why
- Feel whether the exhaust air ever warms at any point in a long cycle — Air that never warms even once points here or at the heat source; air that gets too hot points at the same part failing the other way.
- Reset the breaker fully off and on, then try a hot cycle — A dryer that heats again after a full reset was never faulty; the supply was.
- Run a timed hot cycle rather than an automatic one — Heat on timed but not on automatic points at the control and the sensing rather than the heating parts.
Before you open anything
Safety
Unplug the appliance or switch off its breaker before removing any panel — a capacitor can hold a charge after the power is off.
Models in the NED family
Reference| Model number | Family key |
|---|---|
| NED4600Y*+ | amana:dryer:ned |
| NED4655E*+ | amana:dryer:ned |
| NED4700Y*+ | amana:dryer:ned |
| NED4705E*+ | amana:dryer:ned |
| NED5800D** | amana:dryer:ned |
| NED5800H** | amana:dryer:ned |
When to call a technician
Call once the duct is proven clear and the machine still will not heat, because everything after that is behind a panel. Call rather than replace a thermal fuse a second time: a fuse that opens twice is reporting a cause that has not been found.
Other faults covered for the NED family
Lead Appliance Repair Technician · 12 years experience
Experienced technician with 12 years specializing in washing machine and dryer repairs across all major brands.
