What is most likely happening
Almost every dryer complaint traces back to one thing: airflow. Poor drying, no heat, long cycles and overheating are usually the same underlying restriction seen from different angles, which makes the lint path the most valuable thing an owner can maintain. Everything below is written for Aviva dryers as a class, and each entry links down to the page that carries the diagnosis.
The problem classes on this machine
- It tumbles but does not heat — Usually a restriction that has tripped a thermal cut-out rather than a failed element. See the no-heat page.
- Clothes take two or three cycles to dry — Partial restriction or overloading. See the drying-performance page.
- It will not start at all — Door switch, supply or belt. See the no-start page.
- The cycle stops early or runs forever — Moisture sensing or a thermal cut-out. See the cycle page.
- It has become noisy — Rollers, idler pulley or something in the blower. See the noise page.
- Water appears around a condenser model — Tank, exchanger or drain. See the drainage page.
- It smells scorched or trips the breaker — Stop immediately — that is the electrical-safety page, and it is urgent on this appliance.
Causes in order of likelihood
- Airflow restriction, in all its forms — The dominant cause across the whole category. It presents as no heat, as slow drying, as cycles that stop early and as a cabinet that runs hot, and the same duct clean addresses all of them.
- Moisture sensing errors — Second. Softener film on the sensor bars makes automatic cycles end early or run on, and it is fixed with a cloth rather than a part.
- Door switch and start-circuit faults — Third: small wearing parts that stop the machine dead with no indication at all, which is why a no-start feels more serious than it usually is.
- Mechanical wear — rollers, idler, belt — Fourth. These arrive gradually with noise as the warning, and they are reached by dismantling the cabinet.
- Electrical faults — Least common, most serious, and more serious here than on other appliances because the cabinet contains lint. Any trip or scorched smell takes the machine out of service.
Classes, first checks and who fixes them
General guidance| Problem class | Where to look first | Usually an owner fix? |
|---|---|---|
| Tumbles without heating | Lint screen, then the whole duct | Often |
| Slow drying | Duct, load size, sensor bars | Usually |
| Will not start | Door latch, then the supply | Sometimes |
| Stops early | Clean the moisture sensor bars | Usually |
| Noisy | Turn the drum by hand | Rarely |
| Water around the machine | Condenser filter and tank | Often |
| Scorched smell | Stop and isolate the machine | No |
Based on: No component-share denominator is published for this brand and appliance, so the ordering here is qualitative field experience and carries no percentage.
What has to be off before you touch it
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
Book a visit once the airflow path is genuinely clear and the fault is still there. That single qualification matters more on this appliance than any other, because a thermal fuse fitted without clearing the restriction that opened it fails again quickly. Treat electrical symptoms as urgent rather than routine: on a dryer the protective device is standing between a fault and a cabinet full of fuel.
Related pages for this machine
What is deliberately left out
This page is generalized across the Aviva 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.
