The short answer
A dryer that tumbles without drying is either not making heat or not moving air, and the two feel identical from the front of the machine. On these models the two RV-WD rows are one build in two finishes. Airflow comes first in the order below because it is the commoner fault, it costs nothing to check, and a restricted exhaust is what takes the heating circuit out in the first place.
What you observe
- The drum turns and the load stays cold — No heat is being made at all, which separates it from a slow-drying machine.
- The load is warm and damp at the end of a full cycle — Heat is being made and the moisture has nowhere to go, which is airflow.
- Cycle times have crept up over months — A gradual airflow restriction rather than a component that failed on one day.
- The machine heats and then stops heating part way — A thermal device cutting in and out, which is again an airflow symptom.
- NEAR MISS — the drum does not turn at all — That is a start or a drive fault and no part of this page applies to it.
Causes, most likely first on the RVWD models
- Restricted airflow — First on these machines. A packed filter, a crushed exhaust hose or a blocked outside outlet keeps damp air in the drum, and the machine cannot dry however much heat it makes.
- Thermal device open from a previous overheat — Second, and it follows the first directly: the device opens to protect the machine, and after that the drum still turns while the heat has gone entirely.
- Supply fault where the machine is fed by more than one leg — Third. On builds fed that way, losing one leg leaves tumbling without heat, which is the single most confusing presentation of this fault.
- Heating element or its control — Fourth. An element that has opened gives no heat at all, and it is a service part rather than an owner one on most builds.
- Sensing or control — Last. A machine that stops calling for heat is rarer than one that cannot deliver it, which is why this sits at the bottom. No counted corpus covers these models, so this ranks mechanisms rather than measured shares.
Check in this order, and why
- Read the plate and confirm which of the pair you have — It takes a moment and then you can stop thinking about it: the two rows differ in finish letters, not in the parts this fault involves.
- Clear the lint filter and run the exhaust end to end — Filter, hose, and the outside outlet with the machine running. This is the top cause and the whole check is free.
- Feel the exhaust outlet while a cycle runs — Strong warm air means heat is being made and the problem is downstream; weak air means the restriction is the fault.
- Check the breaker at both positions where the machine takes more than one — A machine that tumbles without heating on such a supply has usually lost a leg rather than a part.
- Look for evidence of a previous overheat — Scorched lint or a hot smell tells you a thermal device has opened, and why.
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. Lint is what burns in a dryer, so clear the filter and the exhaust before doing anything else and never run the machine with its exhaust venting into the room. Do not bypass or reset a thermal device to restore heat: it opened for a reason, and running the machine with that reason still in place is how a fault becomes a fire.
Models in the RVWD family
Reference| Model number | Family key |
|---|---|
| RV-WD900S | contoure:dryer:rvwd |
| RV-WD900W | contoure:dryer:rvwd |
When to call a technician
Call when the airflow path is clear, the exhaust blows strongly and the load is still cold, because what is left is the heating circuit and its safety devices. Call sooner if a thermal device has opened more than once, since the restriction causing it has not been found. Call at once if you smell scorching or see discoloured lint near the heating area, and stop using the machine until it has been looked at. Say which of the two finishes you have when you call. It will not change the part, but it settles the question before anyone travels.
Other pages for this family
Lead Appliance Repair Technician · 12 years experience
Experienced technician with 12 years specializing in washing machine and dryer repairs across all major brands.
