Most dryer problems fall into a short list of common failures. Some you can diagnose and fix in an hour. Others require parts and a bit of mechanical comfort. Here are the five most common dryer problems and how to handle each one.
Related Services: Dryer Repair in Vancouver
1. Dryer runs but doesn’t heat
This is the most common dryer repair call. The drum tumbles, the machine runs normally, but clothes come out damp.
First check — the vent: A clogged exhaust duct causes overheating, which blows the thermal fuse. A blown thermal fuse cuts power to the heating circuit. The vent is the root cause more often than the fuse itself.
Diagnosis path:
- Check the thermal fuse: remove the back panel, locate the fuse on the exhaust duct, test with a multimeter (should show continuity)
- If the fuse is blown, clear the duct first before replacing it, or it’ll blow again
- If the fuse is good, test the heating element (electric) or igniter/gas valve coils (gas)
Electric dryer no heat: Check thermal fuse → heating element → thermostats in that order.
Gas dryer no heat: Check thermal fuse → igniter → gas valve coils → thermostats.
2. Dryer takes too long to dry
If clothes need two or three cycles to dry completely, the machine isn’t failing — it’s struggling.
Most common causes:
- Blocked vent: Even partially blocked venting cuts airflow dramatically. Clean the full duct run, not just the lint trap. Use a dryer vent cleaning kit to reach the full length.
- Overloaded drum: Clothes need space to tumble and contact warm air. A stuffed drum dramatically increases dry time. Split heavy loads in half.
- Heating element running at reduced output: On electric dryers, a partially failed element (one coil section open but not completely failed) produces less heat. Takes longer to dry, but does eventually dry the load.
- Weak gas flame: On gas dryers, a partially clogged burner orifice or weakening gas valve coil produces a lower flame — less heat output.
Quick test: Run the dryer for 5 minutes and feel the exhaust at the exterior vent cap. It should be warm and have noticeable airflow. Weak or cool airflow = blocked duct. Good airflow but clothes not drying = heating issue.
3. Dryer making noise
Dryer noises are usually mechanical and locatable:
- Squealing during tumbling: Drum support rollers (the wheels that support the front of the drum) are the most common cause. When the roller bearings wear out, they squeal. Replacing all four rollers at once is worth doing if one has worn — the others are close behind. Parts cost $20 to $40; it’s a 2-hour repair with some disassembly.
- Thumping: A drum roller that has flattened on one side (a flat spot) causes a rhythmic thump with each revolution. Same repair as squealing rollers.
- Grinding / rumbling: Worn drum bearing at the rear of the drum. This is a more involved repair — requires removing the drum — but the bearing itself is inexpensive.
- Squealing near motor: Drive belt riding on a worn idler pulley. The idler pulley keeps tension on the belt. When its bearing fails, it squeals. Replace the pulley along with the belt if the belt is original.
- Rattling from inside: Foreign object in the drum (coins, buttons), or the drum baffles (the fins inside the drum) are loose.
4. Dryer won’t start
If the dryer does nothing when you press Start:
- Power check: Electric dryers use a 240V outlet. If one leg of the 240V supply is missing (partial breaker trip), the drum might not turn but the lights or timer would still work. Fully trip and reset the breaker.
- Door switch: The door switch tells the dryer the door is closed. A failed door switch prevents starting. Press the door switch plunger by hand — it should click firmly. Test with a multimeter if you’re unsure.
- Start switch or control board: If power is confirmed and the door switch is good, the start switch may have failed. On mechanical timers, the start switch is a separate component. On digital control dryers, the board may have failed.
- Thermal fuse: A blown thermal fuse doesn’t just stop heating — on some dryers it cuts all power to the machine including the motor. If the dryer is completely unresponsive, check the thermal fuse.
5. Dryer stops mid-cycle
A dryer that runs for a few minutes then stops is usually overheating and triggering its thermal cutoff:
- Blocked vent: Again, the most common root cause. With a restricted vent, the dryer quickly overheats and the safety thermostat cuts the heater or the whole machine.
- Cycling thermostat failure: The cycling thermostat regulates temperature during normal operation. When it fails, the dryer can run too hot and trigger the high-limit thermostat, shutting down.
- Motor overheating: An aging motor runs hotter than it should. It may run fine for a few minutes, then its thermal overload trips, stopping the drum. After it cools, it starts again — a cycle that repeats until the motor fails outright.
Gas dryer vs. electric dryer — which is cheaper to repair?
Gas dryers generally have simpler heating components — the igniter, gas valve coils, and flame sensor are inexpensive parts ($15 to $60 each). Electric dryer heating elements run $30 to $90. The labour for either is similar. Gas dryers cost more upfront but less per cycle to run in most BC areas where natural gas is available — though electric dryers are perfectly practical on BC Hydro rates.
When to call a technician
DIY-friendly: cleaning the vent, replacing the thermal fuse (after confirming vent is clear), replacing drum rollers, replacing the door switch. More complex: drum bearing, motor, gas igniter testing, control board. Gas-related components are also worth handing to a technician for a confident diagnosis.
Vancouver Appliance Service repairs gas and electric dryers across Metro Vancouver. We carry thermal fuses, heating elements, drum rollers, and igniters for most major brands and typically complete common dryer repairs in a single visit.
