Arrived at location on 6/22/22 - Inspected unit. Found voltage to smoker element but no amp draw. Found cavity element also in need of replacement. Error 30 error is under temp for more than 90 min. Button overlay also broken and in need of replacement. Customer would like repairs to be scheduled for a Monday or Wednesday. Call and schedule when parts arrive. Returned to location on 6/29/22 - Unit not in use upon arrival unit needs new element,heat cable and overlay. Dismantle all panel dismantle old smoke heater. Dismantle insulation. Dismantle old heat cable. Dismantle old overlay. Install new smoke heat element, old heat cable and overlay. Test unit and observed unit operational.