The short answer
No heat with a turning drum points at the vent path first and the heating circuit second. That order is not a guess: a blocked vent trips the thermal cut-out, and a tripped cut-out produces exactly the same symptom as a failed element. On a Avanti dryer the order below is what makes this page worth reading — the causes are ranked for this kind of machine, not listed alphabetically.
Recognising it
- The drum turns and the clothes stay cold and damp — The defining symptom. It separates a heating fault from a motor or a start fault immediately.
- Loads take two or three runs to dry and used to take one — Partial heating or partial airflow. This is the early stage of the same fault and it is the point to act.
- The cabinet or the door glass is unusually hot — Heat that cannot leave with the air stays in the machine. That is a restriction signature, and it is also a fire risk.
- A scorched smell during or after a cycle — Stop the machine. Lint overheating is how dryer fires start, and this is the warning stage.
- NEAR MISS — the drum does not turn at all — Then the problem is the motor, the belt or the start circuit. Heat is not the question yet.
Causes in order of likelihood
- Restricted vent or lint path — First by a very wide margin. Lint accumulates in the duct, the outdoor flap sticks shut, and the machine loses the airflow that both dries the clothes and cools the heater — which then trips a thermal cut-out and stops heating entirely.
- Tripped thermal cut-out from a past restriction — Second, and it is the consequence of the first: one-shot thermal fuses do not reset, so a vent that was blocked last month can leave the machine permanently cold even after the duct is cleared.
- Heating element or gas ignition failure — Third. An open element or a failed igniter gives no heat at all with perfectly normal airflow, which makes it easy to separate from the first two once the vent is proven clear.
- Cycle selection — Last, and free to rule out: air-fluff and refresh programmes tumble deliberately without heat, and they are easy to select by accident on a shared machine.
Check in this order, and why
- Feel the outdoor vent while the machine runs — Strong warm airflow means the duct is clear and the problem is electrical. Weak or cold airflow settles it the other way.
- Check the selected programme — A no-heat setting explains the whole complaint for free, and it is more common than people expect.
- Run a short cycle with the vent disconnected at the machine — If it heats normally venting into the room briefly, the duct is the restriction. Reconnect it immediately afterwards.
Step by step, within the safe boundary
- Clean the lint screen and the screen housing — Pull the screen, clear it by hand, then vacuum the slot it sits in — the housing collects more than the screen does.
Tools: vacuumAbout 15 min
- Disconnect and clean the whole duct run — Pull the machine out, release the duct, and clear it end to end with a brush and the vacuum. Check the elbow behind the machine, which is where it packs first.
Tools: vacuum, duct brushAbout 45 min
- Check the outdoor flap opens fully — Go outside while the machine runs. A flap held shut by lint or a bird nest blocks everything upstream of it.
Tools: flashlightAbout 15 min
- Re-run a timed cycle and feel the exhaust — Confirm the airflow is restored before concluding anything about the heater.
About 30 min
- STOP before testing the element or the thermal fuse — Both sit on the high-current side of the machine and need isolation and a meter.
Before you open anything
Safety
Unplug the machine or switch off its breaker before opening the cabinet — the heater circuit on this class of appliance carries real current and the terminals are exposed once a panel is off. Clean lint out with a vacuum, never with a blast of compressed air into the cabinet, and put every ducting section back the way it came off.
When to book a visit
Call once the vent is genuinely clear end to end and the machine still tumbles cold, because that means a thermal fuse has opened or the heating circuit has failed, and both need a meter. Tell the technician the duct has been cleared — a fuse replaced without clearing the restriction that opened it fails again within weeks, and a good technician will check the duct before fitting anything.
The rest of this family
Scope of this page
This page is generalized across the Avanti dryer line: it covers the appliance class rather than one family or one model line. Where a family- or model-specific page exists for your unit it is the better answer and it is linked from this page — check the model label before you rely on anything here. What is deliberately not on this page: wiring colours, board part numbers, torque figures and teardown order, all of which differ by family and belong on the page for that family.
Lead Appliance Repair Technician · 12 years experience
Experienced technician with 12 years specializing in washing machine and dryer repairs across all major brands.
