Quick Answer
Common causes include an empty or bridged hopper, an auger that never primed once the hopper has run empty, ash and unburned pellets packed in the firepot, a worn hot rod that no longer reaches ignition temperature, a blocked or failing induction fan, and starting with the lid closed. Check first that the firepot is empty and clean and that pellets are actually reaching it before replacing any part.
Which symptom matches yours?
- The controller shows a start-up failure or the grill shuts down shortly after ignition
- The auger turns and pellets drop, but no smoke or flame appears
- The grill smokes heavily and then dies
- Nothing happens at all — no fan noise, no auger movement
- The failure only appears after the hopper ran empty
- The firepot is heaped with unburned pellets after a failed start
Diagnostic decision tree
No fan, no auger, no display activity
→Power side: outlet, GFCI, power cord, fuse and controller.
Fan runs, auger turns, no pellets in firepot
→The auger needs priming, or the hopper has bridged/jammed.
Pellets in firepot, no ignition
→Hot rod or airflow — check the rod for glow and the fan for obstruction.
Ignites then dies
→Overloaded firepot, damp pellets, or ash smothering combustion.
Only fails on cold or windy days
→Airflow and heat retention — shelter the grill and start with the lid closed as Traeger specifies.
Fixes, easiest first
1. Confirm the start-up basics
AddressesStart-up faults that are procedural rather than mechanical.
- Confirm the grill is plugged directly into a working outlet — reset the GFCI if it has tripped, and remove any long or light-gauge extension cord.
- Verify the hopper has fresh, dry pellets and that they are not bridged over the auger.
- Close the lid for start-up. Traeger's documented start-up sequence for the Pro 575 has the lid closed while the grill establishes fire.
- Let the full start-up cycle run without opening the lid or changing the setpoint.
Expected resultFan audible, auger cycling, smoke within a few minutes, then a temperature climb.
When to stopIf it starts normally, nothing further is required.
2. Empty and clean the firepot
AddressesAsh buildup and leftover unburned pellets, the most frequent cause of repeated ignition failure.
- Unplug the grill and let it cool completely.
- Remove the grates, drip tray and heat baffle.
- Vacuum the firepot and the base of the barrel with an ash vacuum until the firepot is bare metal and the air holes are clear.
- Never start a cycle with pellets already sitting in the firepot — clear them out first.
- Refit the baffle and drip tray in the correct orientation; a misfitted baffle disrupts the airflow the firepot needs.
Expected resultA clean, empty firepot with unobstructed air holes.
When to stopIf ignition succeeds after cleaning, adopt a firepot vacuum every few cooks.
Only vacuum ash that is completely cold. Warm ash can ignite inside a shop vacuum.
3. Prime the auger once the hopper has run empty
AddressesAn auger tube full of air rather than pellets — the standard aftermath of an empty hopper mid-cook.
- Fill the hopper.
- With the firepot clean and empty, run the controller's prime/auger routine (or start a cycle and let the auger run) until pellets fall into the firepot.
- Remove the pellets that dropped during priming so the firepot starts empty.
- Begin a normal start-up cycle.
Expected resultPellets arriving steadily in the firepot within the first minutes of a start.
When to stopIf pellets never arrive despite the auger turning, treat it as an auger jam rather than an ignition fault.
4. Test the hot rod
AddressesAn igniter element that no longer reaches ignition temperature.
- With the firepot clean and empty and the grill cool, start a cycle and look into the firepot with the barrel open.
- Within roughly the first minute or two the hot rod should glow orange.
- No glow, or a dull glow, points to a worn or failed hot rod — a documented wear part on Traeger pellet grills.
- Order the correct replacement igniter for the Pro 575 and follow the manufacturer's replacement instructions.
Expected resultA clearly glowing element and pellets catching within a few minutes.
When to stopStop diagnosing further if the rod does not glow and the fan and power are confirmed good — that is the part to replace.
Do not touch the hot rod or reach into the firepot during a start cycle.
5. Check the induction fan and airflow
AddressesInsufficient combustion air, which prevents pellets from catching even with a working hot rod.
- Listen for the fan at start-up; it should be clearly audible.
- With the grill unplugged and cool, check the fan blades for grease, ash or debris and clear the intake.
- Confirm the chimney is not obstructed and the grease tray and baffle are properly seated.
- Move the grill out of strong direct wind, which can disrupt the firepot's airflow during ignition.
Expected resultAudible steady airflow and pellets igniting into a small flame.
When to stopA fan that does not spin, or spins slowly and noisily, needs replacement.
6. Rule out pellet quality
AddressesDamp or degraded pellets that smoulder instead of igniting.
- Pour a handful from the hopper: pellets should be hard, glossy and snap rather than crumble.
- Discard any pellets that are soft, swollen or produce sawdust in the hopper base.
- Store pellets sealed and off the ground; hoppers left loaded outdoors in humidity absorb moisture.
Expected resultDry pellets that ignite within the normal start-up window.
When to stopIf fresh pellets start reliably, the old bag was the fault.
Traeger Pro 575: what makes this model different
- Ignition system
- Electric hot-rod igniter in the firepot with an induction fan supplying combustion air
- Controller
- D2 Direct Drive controller with WiFIRE connectivity; runs a defined start-up and shutdown cycle
- Start-up
- Traeger's documented Pro 575 procedure starts with the lid closed
- Cooking area
- 575 sq in across two racks
- Common wear parts
- Hot-rod igniter, induction fan, auger motor, temperature probe
When to stop troubleshooting
- The hopper or barrel shows scorching outside the firepot, or you see flame outside the firepot area.
- Any smell of burning insulation, a hot controller housing, or a scorched power cord — unplug and stop.
- The grill has repeatedly failed to ignite with pellets accumulating in the firepot: never restart on top of a loaded firepot, because that can produce a sudden flare when it finally catches.
- Water has entered the hopper or controller housing.
- Clean firepot, dry pellets, glowing hot rod and a working fan but still no ignition — contact Traeger support with the model and serial number.
Sources and references
- Traeger Support Center — pellet grill error codes and start-up faults — Traeger, Inc.
- Traeger owner's manuals and replacement parts — Traeger, Inc.
Procedures are summarised from the sources above and from the owner's manual for this model. Always follow the manual supplied with your grill where it differs.