DV Series
39
Diptube Inspection and Replacement
Step 1. Position the gas control knob to
the “OFF” position
.
Step 2. Turn off the cold water supply to the water heater.
Step 3. Connect a hose to the drain valve of the water heater and route to an open drain.
Step 4. Open a nearby hot water faucet to vent the water heater for draining.
Step 5. Open the drain valve of the water heater and allow the heater to drain to a level
below the inlet connection nipple.
Step 6. Disconnect the inlet nipple from the plumbing system.
Step 7. With an appropriate tool, such as a pipe wrench, remove the inlet nipple/diptube from
the water heater. Use caution to not damage any pipe threads.
Step 8. Visually inspect the inlet nipple/diptube. The inlet nipple/diptube should be free of
cracks and any blockage. Hydrojet slots should be open and free of any blockage.
Any damage such as cracks, restriction due to deformation, or unintentional holes are
NOT field repairable and the inlet nipple/diptube must be replaced.
Step 9. Upon completion of inspection or subsequent replacement, re-install the inlet
nipple/diptube into the water heater.
Ensure pipe dope is used on the nipple’s
threads. Connect the nipple/diptube to the plumbing system and resume the water
supply to refill the heater with water.
Step 10. To resume operation, follow the instructions located on the lighting instruction label or
the lighting instructions located in the Installation and Operation Manual.
WARNING
Water heater components and stored water may be HOT when
performing the following steps in this procedure. Take necessary
precaution to prevent personal injury.
Service Procedure VIII
Diptube Inspection and
Replacement
39
