10 Common Masterbuilt 800 Issues (With Fixes)

Struggling with your Masterbuilt 800? You’re not alone! From temperature troubles to smoke issues, many users face common Masterbuilt 800 problems. 

But don’t worry, most of these issues have simple fixes. 

In this guide, we’ll cover 10 common Masterbuilt 800 issues and how to solve them, so you can get back to enjoying perfectly cooked meals without the hassle.

Masterbuilt 800 Issues (Short Overview)

The Masterbuilt 800 can face issues like uneven temperature, smoke leakage, or ignition problems. 

These can disrupt your cooking experience, but don’t worry! 

With quick fixes like sealing leaks, cleaning burners, or adjusting settings, you can solve most problems and get grilling again in no time.

Read 10 Common Issues With Fixes In Easy Ways…

masterbuilt 800 issues

1. Uneven heating 

Uneven heating is a common issue with the Masterbuilt 800 that can impact your cooking experience. 

You may notice food cooking faster on one side while the other stays undercooked, which can be frustrating during grilling or smoking sessions.

Cause of Uneven Heating

  • Blocked air vents or improper airflow. 
  • Grease or debris buildup impacting heat distribution. 

Fixes for Uneven Heating

  • Clean the grill thoroughly to remove grease and debris. 
  • Ensure air vents are clear, allowing proper airflow. 
  • Regularly maintain your grill to prevent future issues. 

2. Ignition failure 

One common issue with the Masterbuilt 800 is ignition failure, which can prevent your grill from starting properly.

Causes of Ignition Failure

  • Wet or damp pellets clogging the fire pot 
  • Dirt or ash buildup in the fire pot 
  • Malfunctioning igniter or loose wiring 

Fixes for Ignition Failure 

  • Always store pellets in a dry place to prevent moisture 
  • Clean the fire pot regularly to avoid buildup 
  • Inspect the igniter and wiring; replace or reconnect if needed 

3. Smoke leakage 

Smoke leakage can be a common issue with the Masterbuilt 800, impacting cooking performance and temperature control.

Causes of Smoke Leakage 

  • Worn-out or damaged gaskets 
  • Improperly aligned lid or door 
  • Factory seal issues 

Fixes for Smoke Leakage 

  • Replace worn gaskets with high-temperature replacements. 
  • Check and adjust the lid or door alignment for a tighter seal. 
  • Apply a high-heat silicone sealant to reinforce weak factory seals. 

4. Temperature spikes 

One common issue with the Masterbuilt 800 is sudden temperature spikes during use, which can lead to uneven cooking or burnt food. 

These temperature fluctuations often frustrate users, especially during long smoking sessions.

Causes of Temperature Spikes 

  • Poor airflow or vent blockages 
  • Inconsistent fuel quality or usage 
  • Faulty temperature sensors or control panel issues 

Fixes for Temperature Spikes 

  • Ensure vents are clean and clear for proper airflow. 
  • Use high-quality, consistent fuel like lump charcoal or pellets. 
  • Check and recalibrate the temperature sensors or replace them if needed. 

Read Also:

Masterbuilt 560 problems

masterbuilt 560 problems

5. Grease buildup 

Grease buildup is a common issue with the Masterbuilt 800, especially if it’s used regularly. 

Over time, grease from cooking can collect in the grill, creating a sticky mess and even a fire risk if not cleaned.

Causes 

Grease builds up when leftover fats and oils from cooking aren’t cleaned after each use. 

High cooking temperatures can also cause grease to harden and become tougher to remove. 

Fixes 

To fix this, clean the grease trap after every cook and give the grill a deep clean weekly. 

Use a scraper or grill brush to remove hardened grease, and consider lining the trap with foil for easier cleanup next time.

6. Pellet jamming 

Pellet jamming is a common issue with the Masterbuilt 800 that can disrupt your cooking experience.

Common Causes 

  • Using low-quality or damp pellets. 
  • Build-up of ash or debris in the auger. 
  • Overloading the hopper with pellets. 

Fixes 

  • Use high-quality, dry wood pellets for better performance. 
  • Clean the auger and hopper regularly to prevent blockages. 
  • Avoid overfilling the hopper, and check for jammed pellets. 

7. Controller errors 

Controller errors are a common issue with the Masterbuilt 800 grill and can cause frustration while cooking.

Causes of Controller Errors

  • Loose or damaged wiring connections 
  • Power surges or low voltage supply 
  • Outdated or faulty controller firmware 

Fixes for Controller Errors

  • Check and secure all wiring connections 
  • Use a stable power source or surge protector 
  • Update the controller firmware or reset it to factory settings 

8. Flame extinguishing 

If your Masterbuilt 800 keeps turning off or the flame goes out unexpectedly, it can ruin your cooking experience.

Causes:

  • Poor airflow or vents blocked.
  • Moist or low-grade wood pellets.
  • Hopper or auger jams.

Fixes:

  • Clean the vents and ensure proper airflow.
  • Use high-quality, dry wood pellets.
  • Check and clear the hopper or auger for blockages.

9. Poor airflow 

Poor airflow is a common issue with the Masterbuilt 800 that can affect its performance and temperature control. 

When airflow is blocked, the grill struggles to maintain consistent heat, leading to uneven cooking and frustration during use.

Causes:

  • Clogged vents or ash buildup
  • Improperly arranged charcoal or wood
  • Obstructions in the fan or intake

Fixes:

  • Clean out vents and remove any debris regularly 
  • Ensure charcoal and wood are properly arranged for optimal airflow 
  • Check the fan for blockages and make sure it’s functioning correctly 

10. Ash accumulation 

Ash buildup is a common issue with the Masterbuilt 800, especially during long cooking sessions.

Causes 

Ash accumulates when pellets burn, and without proper cleaning, it can clog the firepot and vents. This leads to restricted airflow and inconsistent heat.

Fixes 

To fix ash buildup, clean out the firepot and ash tray after every use. 

Use a shop vac for deeper cleaning to ensure proper airflow and optimal performance. 

Regular maintenance will keep your Masterbuilt 800 in top shape for every cookout!

FAQs

What is the weight of the Masterbuilt 800? 

The Masterbuilt 800 weighs approximately 204 lbs (92.5 kg), making it a sturdy and robust grill for outdoor cooking.

Masterbuilt 800 vs. 1050: Which one is right for you? 

The Masterbuilt 800 is ideal for smaller gatherings with its slightly compact size, while the 1050 offers more cooking space and is better for larger groups or advanced smokers seeking versatility.

What charcoal to use in Masterbuilt 800? 

Use 100% hardwood lump charcoal or briquettes for the best performance and authentic flavor when cooking with the Masterbuilt 800.

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