Customer Support Hub


Q: Does my cooktop come with a manufacturer’s warranty?

A: Your cooktop includes a 3-year limited manufacturer’s warranty with your new purchase from an authorized retailer. To view a list of authorized retailers, please visit

Q: Where can I find the model and serial number of my unit?

A: The model and serial numbers can be found in one of three places: underneath the unit, on the manufacturing sticker on the rear of the unit, or on the cooktop’s box. We recommend writing this information down so you have it for easy reference.

Q: Where can I find the warranty terms for this product?

A: The warranty terms are available online at Your unit is covered for parts for 3 years from the date of purchase. 

Q: All of my burners are clicking or sparking when I turn any of them on.

A: The burners on this unit will spark when you attempt to ignite any of them. This is normal operation and is an intentional side effect of the cooktop’s design.

Q: Why is my unit producing black soot when in use?

A: The most common cause of black soot being produced when using the cooktop is an improper propane mixture or conversion. Check the propane gas source first, then review the LP conversion instructions

Q: What are the cutout dimensions for my cooktop?

A: The cutout dimensions for your model number are: 

COS-GRT30430″27 1/2″7 7/8″
COS-GRT36636″27 1/2″7 7/8″

Q: Can I install my cooktop hard-wired?

A: Our cooktops come with a factory-installed 3-prong, grounded plug that must be used with an appropriate 3-wire wall outlet. We do not recommend hard-wiring your cooktop.