Kenmore 153331472 water heater Parts

For a Kenmore 153331472 gas water heater, it’s usually cheaper to repair when the tank is sound and the problem is a serviceable part (pilot, thermocouple, valve). Replacement makes sense when the tank is failing or when safety-related damage has occurred.

Quick decision guide (repair vs. replace)

• Repair when the issue is ignition or burner related (pilot won’t stay lit, weak flame, intermittent heating).
• Repair when a normal wear part is failing (thermocouple, pilot assembly, drain valve, intake screen).
• Replace when the tank itself is leaking (not fittings) or corrosion is advanced.
• Replace if the heater has been flooded; the manual states the unit must be replaced.
• Replace after a flammable vapor ignition event; the manual indicates the entire water heater requires replacement.
• Service/replace parts if the ECO (energy cut off) activates; the manual notes the gas control valve/thermostat must be replaced by a qualified technician.

Common repairs that are typically cost-effective

These are the kinds of fixes that often restore hot water without replacing the whole heater:

Symptom	Likely area	Example part for model 153331472
Pilot won’t stay lit	Flame sensing/thermocouple	Thermocouple 100108267
No ignition or unreliable lighting	Pilot/ignition components	Water heater pilot assembly 100111380
Poor combustion, shutdowns, airflow issues	Air intake restriction	Water heater air intake screen 100111332
Rotten egg odor, faster tank corrosion	Anode protection	Water heater anode rod 100109434

For model-specific lighting and safety steps, follow the 153331472 owner's manual.

Why it matters

Repairing a gas water heater is often about restoring safe combustion and reliable ignition. Replacing the whole unit is the right call when the tank or safety conditions make continued operation unsafe, even if the heater still “sort of” runs.

Last updated: February 2026

Labor to install a 50-gallon gas water heater typically runs about $400 to $1,000 for a straightforward replacement; the price goes up when venting, gas piping, or plumbing needs to be modified. For Kenmore models like 153.331572 (50-gallon), we recommend following the safety and installation steps in the owner's manual.

Typical labor price ranges (what you are paying for)

Most installers price labor based on time, complexity, and code requirements. Common labor-only ranges include:

• Like-for-like swap (easy access, existing vent and gas line): $400 to $700
• Moderate complexity (some piping or vent adjustments): $700 to $1,000
• High complexity (relocation, major venting or gas work): $1,000+

What can increase labor cost

These items commonly add time and cost to a gas water heater installation:

• Permit and inspection requirements
• Venting changes (draft hood, vent connector, chimney liner issues)
• Gas line resizing, new shutoff valve, or sediment trap updates
• Water line rework (corroded shutoffs, rigid piping, tight clearances)
• Bringing the installation up to current local plumbing and fuel-gas codes
• Haul-away of the old tank and site cleanup

Quick cost breakdown example

Scenario	Labor-only range	Why it changes
Straight replacement	$400 to $700	Minimal changes; fastest job
Some upgrades needed	$700 to $1,000	Extra parts, testing, adjustments
Major modifications	$1,000+	Venting or gas work can be time-consuming

Why it matters

A gas water heater installation is not just “hooking it up.” Proper venting and safe gas combustion are critical for reliable hot water and safe operation. Using the correct installation steps and clearances helps prevent nuisance shutdowns and performance problems.

Related model note

Your Sears PartsDirect model page is for Kenmore 153.331472 (40-gallon), but the same manual series also covers 153.331572 (50-gallon). The owner's manual is the best place to confirm the exact installation checklist and requirements for your specific tank size.

Last updated: February 2026

Your Kenmore water heater model number is printed on the rating plate (data label) on the heater. For model 153331472, the rating plate identifies the exact unit so you can match the correct parts list, manual, and specifications.

Where to find the model number on Kenmore 153331472

On this Kenmore gas water heater, look for the rating plate on the tank jacket or behind an access panel. The manual also shows the rating plate location in the “Get to know your water heater” diagram in the owner's manual.

• Check the outside of the tank jacket first (often on the side)
• Look near the burner access area and doors (inner and outer door area)
• Use a flashlight; the label can be low on the tank
• Write the model number exactly as shown (numbers only for this model)
• Keep the label intact; it is used for identification and service

How to read the model number and why it matters

For this series, the model number is the key identifier that ties to tank size and the correct parts list.

What you’re checking	What it tells you	Example for this page
Model number	Exact product version	153331472
Brand	Parts and documentation family	Kenmore
Fuel type (from label/manual)	Correct ignition and venting parts	Gas (natural)

Quick parts-matching tips (common mistakes)

Even one digit off can point to a different tank capacity or parts set. Before ordering, match the model number from the rating plate to the model shown on the manual and parts list.

• Match all digits; do not use a “close” model
• If you’re comparing similar models, confirm tank size on the label
• Use the model number when selecting ignition parts like the thermocouple 100108267 or the water heater pilot assembly 100111380

Why it matters

Using the correct model number helps ensure you get parts that fit your burner and pilot system, venting setup, and tank configuration; it also prevents ordering the wrong anode rod, drain valve, or door gasket.

Last updated: February 2026

The most common gas water heater problem is the burner not heating because the pilot will not light or will not stay lit. On Kenmore model 153331472, this often traces to combustion air issues, a dirty flame-arrestor/base-ring filter, or a failing thermocouple or pilot assembly (see the troubleshooting and maintenance sections in the owner's manual).

Most common symptoms and what they usually mean

• Pilot will not light or won’t remain lit: weak pilot flame, dirty pilot, or a failing safety sensing component.
• Burner will not ignite: pilot is out, no gas supply, clogged pilot line, or a bad thermocouple.
• Yellow or “lazy” burner flame: insufficient combustion air or venting problems.
• Sizzling or frying sound with moisture: normal condensation during cold-water refill or heavy hot-water use.
• Rotten egg smell: water chemistry reacting with the anode rod.

Quick checks we recommend first (safe, no parts swapping)

• Confirm the gas shutoff valve is fully open and other gas appliances work.
• Check the area for adequate make-up air (closets and tight spaces commonly starve the burner).
• Inspect and clean the base-ring filter/flame arrestor area if lint and dust are present.
• Look for signs of overheating around the burner door area (often tied to airflow or venting).
• If the heater has been unused for 2 weeks or more, run hot water at the farthest faucet for several minutes before using connected appliances.

Parts that commonly fix “pilot won’t stay lit” on this model

If basic airflow and gas-supply checks look good, these are the most common service parts for Kenmore 153331472:

Symptom	Common fix	Part to consider
Pilot won’t stay lit	Flame sensing issue	Thermocouple 100108267
Pilot won’t light reliably	Ignition/pilot component issue	Water heater pilot igniter 100110936
Pilot issues plus weak/unstable flame	Pilot assembly problem	Water heater pilot assembly 100111380
Lazy yellow flame, overheating shutdowns	Restricted intake air	Water heater air intake screen 100111332

Why it matters

A gas water heater depends on correct combustion air supply and venting. When air is restricted, the flame can turn “lazy,” heat builds in the combustion chamber, and safety devices can shut the heater down. Keeping the intake area clean and the pilot system healthy prevents nuisance shutdowns and no-hot-water complaints.

Last updated: February 2026

Most Kenmore tank-style gas water heaters typically last 8 to 12 years. Your Kenmore model 153331472 can reach the high end of that range when it is installed correctly, the burner area stays clean, and the tank is maintained per the 153331472 owner's manual.

Typical lifespan and what affects it

A water heater’s service life is mainly driven by water quality, maintenance, and how hard the unit works.

• Water hardness and sediment: more sediment means more heat stress and noise
• Anode rod condition: a worn anode speeds up tank corrosion
• Combustion air and venting: restricted air intake or poor draft can shorten component life
• Temperature setting: higher settings increase scaling and stress
• Leak history: recurring moisture around fittings can lead to early failure

Maintenance that extends life

These are the most effective, practical steps for a Kenmore gas water heater like model 153331472:

• Flush a few gallons from the tank periodically to reduce sediment
• Inspect and replace the anode rod when it is significantly depleted
• Keep the burner area and air intake path clear (do not block the intake)
• Verify the vent draft hood and venting are secure and unobstructed
• Address pilot or ignition problems quickly to prevent repeated failed heating cycles

Parts that commonly impact longevity

If performance issues start showing up, these parts are often involved:

Symptom	Commonly related part	What it can cause
Pilot will not stay lit	Thermocouple 100108267	Burner shuts off, no hot water cycles
Slow recovery, rumbling	Water heater anode rod 100109434	More corrosion risk, more sediment issues
Weak or inconsistent pilot/ignition	Water heater pilot assembly 100111380	Intermittent heating, nuisance shutdowns
Poor combustion air flow	Water heater air intake screen 100111332	Sooting, shutdowns, reduced efficiency

Why it matters

Once a tank begins corroding internally, repairs shift from “replace a part” to “prevent a leak.” Replacing wear items (especially the anode rod) and keeping combustion air flowing helps you get the full expected lifespan.

Last updated: February 2026