Inspection and Maintenance Schedule 1458.1 MaintenanceThis section describes various maintenance procedures that mayneed to be performed on the water heater from time to time.8.1.1 Cleaning the Water HeaterCAUTIONMake sure the water heater is turned off and the power supplyis disconnected before cleaning the water heater. The waterheater may remain hot for several minutes after it is turned off.To prevent burns, wait until the water heater has cooled downbefore cleaning.To clean the water heater, wipe the outside with a damp cloth. Usea non-acidic, non-abrasive cleaner to remove any surface stains.The front panel is moisture resistant, but it is not waterproof. Keepit as dry as possible.8.1.2 Draining the Water HeaterYou need to drain the water heater before performingmaintenance tasks, such as cleaning the inlet water filter, or toprevent the water heater from freezing when it will not be used foran extended period.To drain the water heater:1. Place a bucket under the water heater, to collect the residualwater inside the water heater.2. Press the Power button on the front panel to turn off thepower to the water heater.3. Close the gas valve.Close4. Close the water supply valve on the inlet to the water heater. Ifthere is no valve, turn off the water supply at the water main.5. Open all hot water faucets completely. The water that remainsin the plumbing lines will drain out.8. Inspection and Maintenance Schedule