Kenmore 33176 Owners Manual - Page 20

Tank (Sediment) Cleaning Sediment build-up on the tank bottom may create varying amount of noise, and if left in the tank will cause permanent tank failure. In some water areas, you may not be able to drain all sediment deposits by simply draining the tank. In these cases Mag-Erad (part no. 23600) can be used to help remove the sediment deposits. This may be ordered from the Sears Service Center. For ordering, refer to the Parts Order List section. Vent System Inspection At least once a year a visual inspection should be made of the venting system. You should look for: Obstructions which could cause improper venting. The combustion and ventilation air flow must not be obstructed. Damage or deterioration which could cause improper or leakage of combustion products. Rusted flakes around top of water heater. venting Burner inspection Flood damage to a water heater may not be readily visible or immediately detectable. However, over a period of time a flooded water heater will create dangerous conditions which can cause DEATH, SERIOUS BODILY INJURY, OR PROPERTY DAMAGE. Contact a Sears Service Center to replace a flooded water heater. Do not attempt to repair the unit! It must be replaced! At least once a year a visual inspection should be made of the main burner and pilot burner, see Figure 24. You should check for sooting. Soot is not normal and will impair proper combustion. Soot build-up indicates a problem that requires correction before further use. Turn "OFF" gas to water heater and leave off until repairs are made, because failure to correct the cause of the sooting can result in a fire causing death, serious injury, or property damage. Carbon Monoxide and Fire Hazard - Flue gases may escape if vent pipe is not connected. - Be alert for obstructed, sooted or deteriorated vent system to avoid serious injury or death. - Do not store corrosive chemicals in vicinity of water heater. • Chemical corrosion of flue and vent system can cause serious injury or death. Breathing carbon monoxide can cause brain damage or death. Always read and understand instruction manual. Be sure the vent piping is properly connected to prevent of dangerous flue gasses which could cause asphyxiation. escape deadly Obstructions and deteriorated vent systems may present serious health risk or asphyxiation. Chemical vapor corrosion of the flue and vent system may occur if air for combustion contains certain chemical vapors. Spray can propellants, cleaning solvents, refrigerator and air conditioner refrigerants, swimming pool chemicals, calcium and sodium chloride, waxes, bleach and process chemicals are typical compounds which are potentially corrosive. If when inspecting the vent system you find sooting or deterioration, something is wrong. Call the local gas supplier to correct the problem and clean or replace the flue and venting before resuming operation of the water heater. at/THERMOCOUPLE BURNER PILOT TUBING FIGURE 24, Burner Cleaning In the event your burner needs cleaning, following these instructions: If inspection of the burner shows that cleaning is required, turn the gas control knob clockwise ( G ) to the "OFF" position, depressing slightly. NOTE: The knob cannot be turned from "PILOT" to "OFF" unless knob is depressed slightly, DO NOT FORCE. Loose deposits on or around the burner can be removed by carefully using the hose of a vacuum cleaner inserted through the access door of the water heater. If the burner needs to be removed for additional cleaning, call the Sears Service Center to remove and clean the burner and correct the problem that required the burner to be cleaned. 2O