Table 4-2. Unit Troubleshooting Procedure
TEST OR INSPECTION
Lethal voltage is present when the water heater is connected to power source.
Disconnect power source before inspecting or repairing any electrical component.
Be careful not to touch electrical connections. Electrical shock and/or death may
result from failure to heed this warning.
Exposed fuel and fuel vapor can ignite or explode resulting in severe injury or
death. Observe proper safety precautions when servicing fuel system. Ensure
water heater is cooled down before servicing fuel system.
Remove rings, bracelets, wristwatches, and neckchains before working around or
on the water heater. Jewelry can catch on equipment and cause injury, or may
short across an electrical circuit and cause severe burns or electrical shock