Service Manual

U TTW SERVICE PROCEDURE XII

Dip Tube

Inspection and replacement

Step1. Position gas control power switch to the “OFF”

position and unplug water heater from wall outlet.

Step 2. Turn off cold watersupply towater heater. Connect hose todrain valve of water heater and route to an

opendrain. Open a nearby hot water faucettovent heater for draining. Opendrain valve of water

heater and allow heatertodrain to a point below the inlet connection nipple.

Step3. Disconnect inle

t nipple from plumbing system.

Step4 With an appropriate tool such as a pipe wrench, remove inlet nipple/dip tube from the water heater.

Use caution nottodamage pipe threads.

Step5. Vi

sually inspect inlet nipple/dip tube. Inlet nipple/dip tube should be free of cracks and any blockage.

Hydro-jetslots should be open and free of any blockage.

Any damage such as cracks, restriction due todeformat

ion or unintentionalholes are not field

repairableand the inlet nipple/dip tube must be replaced.

Step6. Upon completion of inspection orsubsequentreplacement, reinstall inlet nipple/dip tube in

towater

heater. Connect nipple to plumbing system, resume watersupply and refill withwater.

Step7. To resume operation follow the instructions locatedonthe lighting instruction labelorthe lighting

instruc

tions locatedinthe installation and operation manual.

Dip Tube Inspection and Replacement

WARNING

Water Heater components and stored water maybe HOT when performing the following

steps in this procedure. Take necessary precaution to prevent personal injury.

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Gas Control shown in the “OFF” Position