Kenmore 153333347 water heater Parts

On Kenmore gas water heater model 153333347, we check the model number on the rating plate located on the front of the water heater. That same plate typically lists key identification details such as the serial number and other specs used to match the correct parts and instructions in the 153333347 owner's manual.

Look for a metal or printed label (rating plate) on the front of the tank. On this model, the manual calls it the rating plate.

• Check the front jacket of the water heater first
• Write down the model number exactly as shown: 153333347
• Record the serial number (SN) from the same plate
• Take a clear photo of the plate for reference
• Use the model number to match parts like an igniter, pilot assembly, or burner assembly

Having the full ID from the rating plate prevents ordering the wrong Kenmore water heater parts.

If you are troubleshooting while you identify the model, we recommend these safe, basic checks.

• Confirm the gas control knob positions (OFF, PILOT, ON)
• Verify the tank is completely full before turning gas ON
• Inspect for visible leaks around the drain valve and connections
• If the pilot will not light, the igniter and pilot components are common suspects

The model number ties your Kenmore water heater to the correct manual procedures, safety requirements, and exact replacement parts. For example, the manual references the rating plate when matching relief valve capacity to the heater input rating.

Last updated: January 2026

On Kenmore gas water heater model 153333347, a bad thermocouple shows up as a pilot flame that will not stay lit after you release the gas control button, or a burner that will not stay on because the gas control is not being “proved” by the pilot flame. Confirm the lighting steps in the 153333347 owner’s manual.

• Pilot lights while holding the button down, then goes out as soon as you release it
• Pilot goes out repeatedly (pilot outage), especially after the burner tries to run
• Burner will not stay lit even though the pilot is on
• You see soot or heavy buildup around the pilot area (dirty pilot burner can mimic a bad thermocouple)
• The thermocouple tip is not sitting in the pilot flame

We recommend these checks because the manual’s troubleshooting list includes several causes besides the thermocouple:

1. Gas control settings: Make sure the gas control knob is positioned correctly and the thermostat is set to a heating range.
2. Pilot flame contact: The thermocouple tip must be in the pilot flame; if it is not, it cannot keep the gas valve open.
3. Igniter gap: If the igniter tip is more than about 1/8 inch from the pilot hood, lighting can be unreliable.
4. Air intake and flame arrestor: A dirty or clogged air intake screen or blocked flame arrestor openings can cause pilot and burner problems.

If you suspect the igniter is the issue on this model, the water heater igniter 100109221 is a common replacement part.

The thermocouple is a safety device; if it does not sense a stable pilot flame, it prevents the gas control from staying open. That is why a weak pilot, poor flame contact, or a failing thermocouple can stop heating completely.

Last updated: January 2026

Most gas water heaters last 8 to 12 years. For Kenmore model 153333347, regular maintenance like annual burner and vent inspection, periodic sediment draining, and keeping the anode rod in good shape helps you reach the full expected lifespan; see the 153333347 owner's manual.

Gas water heater life is mainly driven by water quality, maintenance, and how hard the heater works.

The manual calls out specific checks that protect the tank and keep combustion safe and efficient.

• Inspect the main burner and pilot burner at least once a year; look for sooting.
• Inspect the venting system at least once a year; check for obstructions, damage, and rust flakes.
• Drain the tank when shutting down during freezing temperatures; remove sediment as needed.
• Check the anode rod periodically; after the warranty period, check it annually at minimum.
• Replace a depleted anode rod to help prevent tank corrosion (a key cause of end-of-life leaks).

These symptoms often show up as the tank or combustion system ages.

• Rusty water or rust flakes near the top of the heater
• Rumbling or popping sounds (sediment buildup)
• Frequent pilot outages or ignition problems
• Sooting around the burner area
• Moisture or leaking at the tank (not just at fittings)

A gas water heater that is maintained (especially the burner, venting, and anode rod) runs more efficiently and is less likely to fail early from corrosion or combustion problems. Replacing the anode rod is one of the most effective ways to extend tank life; a common replacement is the anode rod 100109594.

Last updated: January 2026

The most common problem we see on a gas water heater like Kenmore model 153333347 is ignition failure, meaning the pilot will not stay lit or the burner will not fire, so you get little to no hot water. Sediment buildup and temperature regulation issues are also frequent.

• Pilot goes out: no hot water; you may need to relight the pilot per the 153333347 owner’s manual.
• Weak or failed ignition components: clicking but no flame, or pilot will not hold; often points to the water heater igniter 100109221 or a pilot issue.
• Sediment in the tank: popping, sizzling, or rumbling sounds; reduced hot water output.
• Condensation mistaken for a leak: water droplets and “frying” noise during heavy hot water use; this often clears after the tank warms (about 1 to 2 hours).
• Water temperature complaints: water can vary at the tap; the manual notes temperature can swing up to about 30°F at the point of use.

1. Confirm the tank is completely full of water before any relight attempt.
2. Follow the lighting steps exactly and reinstall the burner door after the pilot is established.
3. Set temperature carefully; the manual indicates about 120°F is a preferred starting point and warns that hotter water increases scald risk.
4. Look for true leak points: fittings, drain valve, and the temperature and pressure relief valve discharge.

Ignition and venting problems can stop heating completely, while sediment and anode-rod issues reduce efficiency and shorten tank life. Addressing the root cause early helps restore reliable hot water and prevents repeat outages.

Last updated: January 2026