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Grill guide · Care & how-to

Smoker Maintenance Basics

Smokers run low and slow for hours, so they collect more grease, ash and smoke residue than a grill. Most smoker problems, from temperature swings to grease fires to a pellet auger that jams, trace back to maintenance that slipped. Here's what each type needs.

Care & how-to · Updated November 2026

Maintenance by smoker type

TypeAfter every cook or twoEvery few cooksA few times a year
PelletEmpty the grease bucket, check the drip tray linerVacuum ash from the fire pot and barrelEmpty the hopper, clean the auger area, check the temperature probe, inspect the hot rod igniter
Offset / stick burnerRemove cold ash from the fireboxScrape the cooking chamber, empty the grease drainCheck for creosote, treat rust spots, inspect the paint and seals
Kamado (ceramic)Let it burn off on high briefly after a cookRemove ash from the bottomCheck gasket, tighten bands and hinges, clean out fully
Gas / propane smokerEmpty the water pan and grease trayClean the wood chip boxClean the burner and ports, check the igniter and gas connections
Electric smokerEmpty the grease tray and water panClean the chip trayWipe down the element area, check wiring and the controller

Pellet smokers

Pellet grills are the most common smoker we see in LA backyards, and most of their problems come from three things: ash, grease and pellets.

  • Ash in the fire pot builds up and smothers the fire, which causes temperature swings, flameouts and, in some cases, a burn-back where fire travels up the auger tube. Vacuum the fire pot and barrel every few cooks with a shop vac, only when the smoker is completely cold.
  • Grease runs down a sloped drip tray into a bucket. A clogged drain or full bucket sends grease into the barrel, where it can ignite. Use tray liners and change them often.
  • Pellets absorb moisture and swell, turning to sawdust that jams the auger. Near the coast, the marine layer is enough to soften pellets left in the hopper for a week or two. Empty the hopper if you won't cook for a while and store pellets in a sealed bucket.

Offset and stick-burner smokers

These are heavy steel and they last a long time if rust is kept in check. After every cook, once the firebox is cold, remove the ash; ash holds moisture and eats through the firebox floor faster than anything else. Scrape the cooking chamber walls when buildup gets thick, and keep the grease drain open.

Watch for creosote, a black, shiny, sometimes flaky deposit on the inside of the chamber and stack. It forms when wood smolders with too little air and gives food a bitter taste. Scrape it off, then run cleaner fires with good airflow and well-seasoned wood.

For rust on the exterior, wire-brush the spot and touch it up with high-temperature grill paint. Inside the chamber, keep a thin coat of cooking oil on bare steel after cleaning.

Kamado grills

Ceramic kamados are nearly self-cleaning. Running the grill at high heat for 20 to 30 minutes with the vents open burns off most interior residue (don't do this routinely at extreme temperatures, which can stress the gasket). Remove ash from the bottom regularly so it doesn't block the lower vent.

  • Gasket: the felt or fiberglass seal around the rim wears out, and a worn gasket lets air in and makes temperature control difficult. Replace it when it's flattened, burned or peeling.
  • Bands and hinges: the metal bands that hold the dome can loosen and rust over time, especially near the coast. Tighten them periodically and check alignment so the lid seals evenly.
  • Cracks: small hairline cracks in the firebox or fire ring are common and usually harmless. Avoid sudden temperature changes, and never pour water inside.

Deep cleaning a pellet smoker

  1. 1

    Cool and unplug

    Let the smoker cool completely and unplug it. Empty the pellet hopper into a sealed container.

  2. 2

    Remove the grates and trays

    Take out the cooking grates, drip tray and heat baffle. Scrape them, soak them in hot water with a biodegradable degreaser, and scrub.

  3. 3

    Vacuum

    Vacuum the fire pot, the barrel interior and under the heat baffle. Brush the fire pot gently to remove clinkers.

  4. 4

    Clean the grease path

    Scrape the barrel walls and floor, clear the grease drain and replace the bucket liner.

  5. 5

    Check the parts

    Wipe the temperature probe clean (a dirty probe causes temperature swings). Look at the hot rod igniter for damage. Reassemble and run a burn-in cycle before cooking.

Signs your smoker needs attention

  • Temperature swings you can't explain by weather or wind
  • Pellet grill shows flameout or ignition errors
  • Thick black smoke instead of thin blue smoke
  • Bitter or acrid taste on food
  • Grease dripping from places it shouldn't
  • Rust holes in the firebox or cooking chamber
  • Lid that doesn't seal or a gasket that's coming loose
  • Temperature gauge that reads very differently from a probe thermometer

Professional help

We service smokers as part of our smoker, griddle and pizza oven service, including deep cleaning, gas smoker burner and igniter work, and temperature gauge replacement. On gas grills with a built-in smoker box, smoker box repair covers the burner and box. If your smoker sits in an outdoor kitchen, we can handle it during the same visit as the grill.

Common questions

How often should I clean my pellet grill?

Vacuum ash every few cooks (or every 15 to 20 hours of cook time), empty the grease bucket frequently, and do a full deep clean a few times a year.

Is the black buildup inside my smoker bad?

A thin layer of seasoning is normal and fine. Thick, flaky or shiny creosote should be scraped off; it causes bitter flavor and can flake onto food.

Can I leave pellets in the hopper?

For a few days, yes. Longer than that, especially near the coast, moisture can make them swell and jam the auger. Store them in a sealed container.

My smoker's temperature gauge seems off. Should I replace it?

Built-in dome gauges are often inaccurate. Check against a good probe thermometer at grate level. If it's way off or stuck, replace it.

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Smoker not holding temperature?

Call or text, or send a couple of photos. We'll tell you what it needs.

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