Common questions about Masterbuilt Gravity Series® Controller Assembly Replacement Kit (800)
How do I know the controller is the problem?
Symptoms are a dead display, a fan that will not spin up, or readings that wander while the fire is clearly fine. Before you replace it, check the wiring and the door switches, since a switch fault reads like a controller fault and is a far smaller job.
Will this fit my Gravity Series?
Only the 800, and specifically models MB20040122 and MB20040221. Check the model sticker on the hopper before ordering, because the Gravity Series controllers are not interchangeable across sizes. It is also the non-WiFi assembly, so it will not add app control to a unit that never had it.
Is fitting it a job for a technician?
No, it is a plug-in swap. Unplug the old assembly, unbolt it from the hopper, and the new one goes in the same way with no modification. Take a photo of the loom before you pull anything apart, and do it with the unit cold and unplugged.
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