The 6 volts would be correct and the 800ma should be adequate. If it's been connected wrong you may have damaged the unit. Does it still work on batteries?
Bill Wheeler - Cleveland TN
competition team member: Jack's Old South & Myron Mixon Smokers.com
Southern Q Model 500 Water Smoker
Jacks Old South Original Patio Smoker
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Traeger Texas - Myron Mixon 72XC ordered