Diptube Inspection & Replacement - Bradford White UPV Series Service Manual

UPV Service Procedure XI – Diptube Inspection and Replacement
Diptube Inspection and Replacement
Step 1. Position on/off switch of gas control valve to "OFF" position and unplug water heater from
wall outlet.
Step 2. Turn OFF cold water supply to water heater. Connect hose to drain valve of water heater
and route to an open drain. Open a nearby hot water faucet to vent heater for draining.
Open drain valve of water heater and allow heater to drain to a point below the inlet
connection nipple.
Step 3. Disconnect inlet nipple from plumbing system.
Step 4. With an appropriate tool such as a pipe wrench, remove inlet nipple/diptube from the water
heater. Use caution not to damage pipe threads.
Step 5. Visually inspect inlet nipple/dip tube. 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/dip tube must be replaced.
Step 6. Upon completion of inspection or subsequent replacement, reinstall inlet nipple/dip tube
into water heater. Ensure pipe dope is used on the nipple's threads. Connect nipple to
plumbing system, resume water supply and refill with water.
Step 7. To resume operation, follow the instructions located on the lighting instruction label or the
lighting instructions located in the Installation and Operation Manual.
Water heater components and stored water may be HOT
when performing the following steps in this procedure.
Take necessary precaution to prevent personal injury.
WARNING
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