Costco RC3218 - User Manual

Questions and Answers

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mbakerAug 1, 2025
Why is the burner flame yellow and I smell gas on my Costco RC3218 Grill?
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  Daniel BentonAug 1, 2025
  If your Costco Grill burner flame is yellow and you smell gas, it could be due to several reasons. First, the air shutter opening might not be properly set; try loosening it and adjusting the opening to achieve blue flames (approximately 6.35mm or 1/4 inch for LPG, or 3.18mm or 1/8 inch or less for NG). Second, spiders or insects may have blocked the air shutter, in which case you should clean the blockages. Finally, there could be gas leaks, so check for the source of any leaks.
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ngregoryAug 5, 2025
How to fix a Costco RC3218 Grill that won't light?
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  David HansenAug 5, 2025
  If your Costco Grill or side burner won't light, several factors could be responsible. Start by checking if the ignition wire came off the electrical igniter and reconnect it if necessary. Also, ensure the distance between the ignition pin and the burner is within the range of 2.54mm/0.1inch to 5.08mm/0.2inch for the side burner; adjust the ignition pin if needed. Other potential causes include a broken ignition wire (call customer service for a replacement), a dead battery (install a new AA battery), incorrect battery polarity (change the battery polarity), an improperly installed electrode (reinstall the electrode), no gas supply (turn on the regulator valve), or an air shutter opening that's too big (loosen the air shutter and adjust the opening to a smaller size).
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Charles AllenAug 9, 2025
What to do if my Costco Grill has a sudden drop in gas flow?
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  Angela MckayAug 9, 2025
  If you experience a sudden drop in gas flow or low flame on your Costco Grill, first check for gas in the LP cylinder to ensure you're not out of gas. If that's not the issue, the excess flow valve might have tripped; try turning off the knobs, waiting 30 seconds, and then lighting the grill. If the flames are still low, turn off the knobs and LP cylinder valve, disconnect the regulator, reconnect it, perform a leak test, turn on the LP cylinder valve, wait 30 seconds, and then light the grill. Another possibility is a vapor lock at the coupling nut/LP cylinder connection; in this case, turn off the knobs and LP cylinder valve, disconnect the coupling nut from the cylinder, reconnect it, and try again.
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Megan AndersonAug 14, 2025
How to prevent excessive flare-up on Costco RC3218?
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  Warren MooreAug 14, 2025
  Excessive flare-ups on your Costco Grill can occur for a few reasons. If you're grilling fatty meats while the knobs are on “HIGH”, try grilling them when the grids are cold and the knobs are on the “LOW” setting. If flare-ups continue, move the meats to the warming rack until the flame settles down. Also, never spray water on gas flames. Finally, make sure the hood is up when grilling.
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Brenda KingAug 18, 2025
What to do if my Costco RC3218 burner blows out?
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  Joseph HensleyAug 18, 2025
  If your Costco Grill burner blows out, it could be due to a few reasons. First, check if the LP tank is empty and refill it if necessary. Second, ensure the burner is correctly aligned with the control valve; if not, install the burner correctly. Finally, check the gas supply hose to ensure there are no leaks or knots, as an insufficient gas supply can cause the burner to blow out.
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Peggy GutierrezAug 23, 2025
Why is the heat low on my Costco RC3218 when the knob is on 'HI'?
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  James NelsonAug 23, 2025
  If you're experiencing low heat on your Costco Grill even with the knob in the “HI” position, it could be due to blocked ports. Clear any obstructions from the ports. Alternatively, the LP tank might have run out, so refill the LP tank.
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Melvin RiveraAug 27, 2025
How to troubleshoot low heat with LP gas on a Costco RC3218?
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  tanneramandaAug 27, 2025
  To address low heat with LP gas on your Costco Grill, make sure all burners are “OFF”. Then, open the tank valve and wait 5 minutes. After waiting, light the burner one at a time following the lighting instructions listed on the door liner.