Quick answer: When a dryer won't start, check these three things first — in order: (1) the circuit breaker, (2) the door switch, (3) the thermal fuse. These three account for well over half of all dryer no-start failures and each can be checked in under 10 minutes. Only move on to the start switch, timer, motor, or control board once the basics are ruled out.
A dryer that won't start at all — no hum, no drum movement, nothing — is one of the most frustrating appliance failures because wet laundry has nowhere to go. The range of possible causes is wide: simple power issues at one end, failed motor or control board at the other. Working through the causes in the right order keeps you from buying parts you do not need.
This guide covers all 8 causes of a dryer that won't start, along with step-by-step checks for each and repair costs in the Toronto and GTA area for 2026.
Every dryer has a door switch — a small safety interlock that tells the control board the door is closed before allowing the motor to run. If the switch fails, or if the door latch does not engage fully, the dryer treats every Start press as an open-door condition and does nothing.
Symptoms: The control panel lights up, you can change settings, but pressing Start produces no response. The dryer is completely silent.
Quick test without tools: Firmly press the door closed with your hand — more force than usual — while pressing Start. If the dryer starts, the latch is worn or misaligned and the switch is intermittently not actuating. This is a common issue on dryers that get heavy use.
Test with a multimeter: Unplug the dryer. Remove the door switch (usually 2 screws inside the door frame interior). Set your multimeter to continuity mode. Press the switch plunger (simulating a closed door) and probe the terminals. The normally-open contacts should read continuity when pressed, OL when released. A switch that reads the same in both positions has failed.
Fix: Door switches cost $10–$25 for most brands and take 15 minutes to replace. This is one of the simplest dryer repairs available — no disassembly of the cabinet required on most models.
Electric dryers run on 240V using a double-pole circuit breaker. Gas dryers use 120V for the controls and motor. If the breaker trips — or if one leg of a 240V circuit trips independently — the dryer may show no signs of life at all, or may show lights but refuse to start the motor.
How to check: Go to your home electrical panel. Find the double-pole breaker for the dryer (typically 30A). If it is tripped, one or both switches will be in the middle position rather than fully ON or OFF. Reset it: push it fully to OFF, then firmly back to ON. On some panels, you can see that one leg has tripped even though the other appears ON — look carefully.
Also check: The power cord connection at the dryer terminal block. On older Canadian homes with 3-prong dryer outlets, the neutral wire can work loose over time, causing intermittent loss of one voltage leg.
Warning: If the breaker trips again immediately after reset, do not keep resetting it. A repeatedly tripping breaker means an electrical fault — short circuit in the dryer or wiring — that needs an electrician or appliance technician to diagnose.
On many dryer models — Samsung, Whirlpool, GE, LG — the thermal fuse is wired in series with the motor circuit, not just the heating element. When it blows, the dryer will not start at all: no hum, no drum movement. This surprises many people who expect a blown thermal fuse to only stop heat production.
How to confirm: Unplug the dryer and remove the back panel. Locate the thermal fuse on the exhaust duct or heater housing — it is a small white or blue cylindrical component with two wires. Test for continuity with a multimeter. A blown fuse reads OL (open circuit) — no continuity at all.
Root cause: Thermal fuses blow because the dryer overheated. This almost always means a clogged exhaust vent. Before installing the new fuse, clean the full vent run — otherwise the replacement fuse will blow again within days or weeks.
Fix: OEM thermal fuses cost $8–$15. The repair itself is straightforward; accessing the fuse is the main challenge and requires removing the back panel. Total repair with parts and labour runs $120–$180 from a technician.
Our certified technicians carry diagnostic tools and common dryer parts on every van. Same-day service across Toronto and GTA. $65 diagnostic credited toward repair.
(437) 747-6737 Book OnlineThe Start button on your dryer is a momentary switch — it makes contact only while you hold it down, sending a brief signal to the control board or motor relay to begin operation. When this switch fails internally, pressing it does nothing regardless of all other conditions being met.
How to distinguish from a door switch issue: If the dryer starts normally when you hold Start for 3–4 seconds but won't start with a quick press, the start switch contacts may be worn and only make connection under prolonged pressure. That is a clear sign the switch is nearing failure.
How to test: With the dryer unplugged, remove the control panel and locate the start switch. Test for continuity while pressing the button — it should read continuity only when actively pressed, OL when released. A switch that reads continuity in both states (stuck closed) or OL in both states (stuck open/broken) has failed.
Fix: Start switches vary in accessibility by model. On some dryers, the switch is mounted in the console and accessible from the front; on others, it requires partial cabinet disassembly. Part cost is $15–$40. Total repair: $140–$210 with labour.
On older electromechanical dryers — those with a rotating dial rather than a digital display — the timer controls the motor circuit directly. A failed timer contact means the motor never receives the start signal, even with everything else working correctly.
This cause is most relevant to dryers over 10 years old, particularly older Whirlpool, GE, Maytag, and Inglis models that used mechanical timers. Newer dryers with digital control boards do not have a separate timer in the same sense — the control board handles timing functions electronically.
How to confirm: Timer failure typically produces no specific symptom other than "nothing happens." A technician can bypass the timer temporarily to confirm whether the motor runs when power is applied directly, confirming the timer is the break in the circuit.
Fix: Timers cost $40–$100 for OEM parts. However, on an older dryer, a failed timer is often a signal that other electromechanical components are also nearing end of life. Weigh the total repair cost against the dryer's age and remaining lifespan before proceeding.
Many dryer motors include a thermal overload protector (also called a motor overload switch) that automatically cuts power to the motor when it overheats. Unlike the main thermal fuse, this is a resettable device: once the motor cools down — typically 30–60 minutes — the protector resets and the dryer works again until the next overheating event.
Classic symptom pattern: The dryer runs normally, stops mid-cycle, and won't restart for 30–60 minutes. After sitting, it starts again and runs for a while before failing once more. This intermittent pattern — not a hard no-start — is the hallmark of motor thermal overload.
Root cause: The motor is overheating due to a restricted airflow (clogged vent), worn drum bearings that create extra load on the motor, or a motor that is simply wearing out and running hotter than normal.
Fix: Start by cleaning the exhaust vent thoroughly. If the problem persists after clearing the vent, the motor bearings may be worn — a technician can assess. Do not ignore this pattern; a motor that repeatedly overheats will eventually fail permanently.
Some dryers — particularly older models — will not start if the drive belt is broken. They use a belt-switched safety circuit: a switch that detects belt tension prevents the motor from running without a belt in place (to avoid spinning the motor unloaded at full speed). When the belt snaps, this switch cuts the motor circuit entirely.
Not all dryers have this safety feature. On models without it, a broken belt lets the motor run and the drum sit still. But on those that do have the belt-switch safety, pressing Start produces complete silence — identical to a door switch failure or power issue.
Quick test: Open the door and try to turn the drum by hand. If it spins with almost no resistance (the belt loop would normally provide tension), the belt is likely broken. Confirm by opening the cabinet and visually inspecting the belt path.
Fix: Drive belts cost $15–$30 and the repair is a moderate DIY task on most models. See our full guide on dryers not spinning for step-by-step instructions.
The main control board on modern dryers manages all start, stop, and cycle functions. A failed motor relay on the board, a burnt trace, or a failed start capacitor on the board can prevent the dryer from starting while the display still works normally — because the display runs off a separate low-voltage circuit.
Control board failure is a diagnosis of exclusion. It should only be suspected after the door switch, power supply, thermal fuse, start switch, and motor have all been tested and confirmed good. Replacing a control board that turns out not to be the problem is an expensive mistake.
Signs pointing toward control board: The dryer worked fine, then stopped suddenly without any prior symptoms. No error codes. Every other component tests good. The dryer shows the correct time and accepts button input but will not respond to Start.
Fix: OEM control boards cost $100–$200. Given the diagnostic complexity, this repair belongs with a technician who can confirm the board — not a wiring harness, start capacitor, or another component — is actually at fault before committing to parts.
The prices below include parts and labour at typical GTA rates. Nick's Appliance Repair's $65 diagnostic fee is credited toward your repair when we do the work.
| Repair | Parts Cost | Total (Parts + Labour) | DIY Difficulty |
|---|---|---|---|
| Door latch / door switch | $10–$25 | $100–$160 | Easy |
| Thermal fuse replacement | $8–$15 | $120–$180 | Moderate |
| Start switch replacement | $15–$40 | $140–$210 | Moderate |
| Timer replacement | $40–$100 | $160–$260 | Moderate |
| Drive belt replacement | $15–$30 | $130–$200 | Moderate |
| Motor replacement | $80–$150 | $250–$400 | Hard — leave to pro |
| Control board replacement | $100–$200 | $230–$380 | Hard — leave to pro |
Work through the causes in order. The breaker check costs nothing and takes 2 minutes. The door switch test requires only a multimeter. These two steps alone resolve a large fraction of dryer no-start calls. The thermal fuse is the third quick check and also requires only a multimeter and a screwdriver.
DIY-friendly repairs on this list:
Leave to a technician:
Is the repair worth it? Most dryer no-start repairs fall in the $100–$220 range — well worth it for a dryer under 10 years old. Motor and control board replacements on older units should be evaluated case by case. Our technicians give honest repair-vs-replace recommendations after diagnosis.
Complete silence when you press Start — no hum, no light, nothing — almost always means a power supply problem. Check the circuit breaker first (electric dryers use a 240V double-pole breaker). If the breaker is fine, the thermal fuse or power cord may have failed. A completely dead dryer is rarely caused by the motor or control board — start with the power supply basics.
If the control panel lights up but pressing Start does nothing, the door switch is the most likely culprit — the control board thinks the door is open and refuses to run. A faulty start switch or a blown thermal fuse are the next suspects. Test the door switch first: press Start while firmly holding the door closed with extra pressure. If it starts, the latch is misaligned or the switch is failing.
Yes. On many dryer models — particularly Samsung, Whirlpool, and GE — the thermal fuse is wired in series with the motor circuit, not just the heating circuit. When it blows, the dryer will not start at all. Test the thermal fuse with a multimeter on continuity mode; a blown fuse reads OL (no continuity).
Unplug the dryer and remove the door switch (usually 2–3 screws inside the door frame). Set a multimeter to continuity mode. With the switch button pressed (simulating a closed door), it should read continuity. With the button released, it should read OL. If it reads OL in both positions, or continuity in both positions, it has failed and needs replacement.
Yes, repeatedly pressing Start on a dryer that won't respond is not dangerous — the dryer simply will not run. However, if the dryer trips the circuit breaker when you try to start it, stop immediately. A dryer that trips the breaker on startup has an electrical fault — short circuit or failed motor — that needs professional diagnosis before further use.
The most common repairs — door switch, thermal fuse, and start switch — each cost $100–$210 all in with labour in the Toronto area. A defective timer runs $160–$260. Control board replacement is $230–$380. Nick's Appliance Repair charges a $65 diagnostic fee credited toward the repair.
Serving Toronto, North York, Scarborough, Mississauga, Brampton & all GTA.
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