Kenmore 153330250 gas water heater Parts

A 50-gallon gas water heater typically lasts 8 to 12 years in normal household use. For Kenmore model 153330250, lifespan depends most on water quality, maintenance (especially flushing), and whether the anode rod is kept in good condition; see the 153330250 owner's manual for care and operating guidance.

Most failures come from tank corrosion, sediment buildup, or combustion system wear. These factors have the biggest impact:

• Water hardness and sediment (more buildup shortens life)
• High temperature settings (more stress on the tank and components)
• Closed plumbing systems without expansion control (more pressure cycling)
• Anode rod condition (a worn anode speeds tank corrosion)
• Maintenance frequency (regular draining and flushing helps)

We recommend these practical steps for a 50-gallon gas water heater:

• Flush the tank periodically to reduce sediment
• Keep the temperature set around 120°F to reduce scald risk and stress on the system
• Inspect for leaks at fittings and the drain valve
• Test the temperature and pressure relief valve for proper operation
• Replace the anode rod when it is significantly depleted (do not operate long-term without one)

Some problems feel like “the tank is done” but are actually serviceable parts.

Once a tank starts leaking from the body of the heater (not a valve or fitting), replacement becomes the practical path. Staying on top of flushing, temperature settings, and the anode rod helps you get the full expected 8 to 12 years.

For replacement parts for Kenmore 153330250, we list model-matched parts on this page; for broader model searches and ordering, use Sears PartsDirect.

Last updated: February 2026

For Kenmore model 153330250, the water heater’s age is determined by decoding the serial number on the rating plate (usually on the tank jacket). The exact serial format varies by manufacturer, so we use the decoding method shown in your owner's manual and then match the serial pattern to the correct date code.

Look for the rating plate label on the outside of the tank. It typically includes:

• Model number (153330250)
• Serial number
• Gas type and input rating
• Tank capacity and other specs

Most water heater serial numbers encode a manufacture date using a year plus a week or month indicator. Common patterns include:

• YYWW: year and week (example: 1420 = 2014, week 20)
• YYMM: year and month (example: 1407 = July 2014)
• Letter for month + digits for year: A = Jan, B = Feb, etc. (letter systems vary)
• Digits embedded mid-serial: date code is not always at the start

• Write the serial number exactly as shown (include letters).
• Identify whether the first 4 characters look like a date (YYWW or YYMM).
• If letters appear, check whether they align with a month code system.
• If the pattern is unclear, compare multiple possible date positions (start, middle, end).

Water heater age helps you plan maintenance and avoid unexpected loss of hot water.

As water heaters age, internal corrosion and sediment buildup increase the chance of reduced hot water, pilot problems, and leaks. Routine maintenance, such as periodic draining and checking safety components, helps extend service life.

If you are troubleshooting performance or safety concerns on this Kenmore gas water heater, these model-matched parts are commonly involved:

• Water heater temperature and pressure relief valve 100108279
• Anode rod 100109594
• Water heater drain valve 100108361

For ordering, use the parts list for model 153330250 or search by model on Sears PartsDirect.

Last updated: February 2026

Labor to install a 50-gallon gas water heater typically runs $400 to $1,000 in many U.S. markets, with higher totals when venting, gas piping, or code-related updates are needed. For Kenmore water heater models like 153330250, we recommend using the sizing and installation requirements in the owner's manual to estimate job complexity accurately.

Labor pricing is mostly about how much work is required beyond a basic swap.

• Venting changes (draft hood, vent connector, chimney liner, clearances)
• Gas line work (new shutoff valve, sediment trap, resizing pipe)
• Water piping updates (corroded shutoffs, rigid-to-flex conversion, new fittings)
• Thermal expansion protection (adding an expansion tank when required)
• Drain pan and drain routing (especially in finished spaces)
• Access and haul-away (tight closets, attic installs, stairs)

These ranges help you budget; your final quote depends on site conditions and local requirements.

Using this list helps contractors quote more accurately and helps you compare bids.

• Confirm tank size and gas type (natural gas vs LP)
• Measure diameter and height clearance at the install location
• Note vent size (commonly 3-inch or 4-inch) and vent path condition
• Check whether a drain pan and drain line are needed
• Verify the T&P relief valve discharge pipe route and termination
• Identify any active leaks at the drain valve or fittings

A low labor quote can jump quickly if the installer discovers venting, gas piping, or safety components need updating. Planning for those items upfront reduces delays and helps protect the heater and home.

If your existing safety or combustion components are worn, replacement during installation can add time.

• Water heater temperature and pressure relief valve 100108279 (T&P relief valve)
• Draft hood 100111362 (draft hood for proper venting)

For model-specific installation notes and clearances, use the owner's manual. For parts shopping beyond the list for model 153330250, search by model number on Sears PartsDirect.

Last updated: February 2026

Yes. On a Kenmore 153330250 gas water heater, we can replace many service parts (such as the pilot assembly, burner components, anode rod, drain valve, and the temperature and pressure relief valve) to restore safe operation and extend tank life; use the owner's manual for model-specific procedures and safety checks.

These are typical replaceable items we see on the Kenmore 153330250, and several are available for this model:

• Temperature and pressure relief valve (safety valve that opens if pressure or temperature gets too high)
• Pilot and thermocouple style components that keep the gas valve open when a flame is proven
• Burner and burner door components (including gaskets and viewport-related parts)
• Anode rod (sacrificial rod that protects the tank from corrosion)
• Drain valve (used for draining and flushing sediment)
• Draft hood (helps direct flue gases into the vent)

Gas water heater repairs involve gas, hot water, and combustion products. Before servicing:

• Turn off gas at the manual gas shut-off valve.
• Open a nearby hot water faucet until water is no longer hot.
• Keep the area clear of combustibles and flammable liquids.
• Inspect venting at least yearly for obstructions, damage, or loose connections.
• Never plug the temperature-pressure relief valve discharge opening.

If the tank itself is leaking, replacing parts will not stop the leak; the water heater needs to be replaced. Also, if the unit has been exposed to flooding, the manual directs replacement rather than repair.

Parts like the relief valve, burner door gasket, and venting components directly affect safe combustion and pressure control. Keeping these items in good condition helps prevent unsafe operation and protects your home from water damage.

You can order replacement parts for your Kenmore 153330250 from the parts list for this model, or search by model number on Sears PartsDirect.

Last updated: February 2026

The most common gas water heater problem is the pilot light going out or not staying lit, which stops the burner from heating water. On Kenmore model 153330250, pilot outages are often tied to pilot/thermocouple issues, poor draft (venting), or excessive condensation dripping onto the burner area.

• Turn the gas control to OFF before inspecting anything.
• Confirm the tank is completely full of water before turning gas back on (water should flow steadily from a nearby hot faucet). See the owner's manual.
• If you smell gas, do not try to relight; have a qualified technician check the system.
• Look for signs of venting trouble (soot, melted plastic near the draft hood, or a pilot that drops out after running).
• If water appears under the heater, allow 1 to 2 hours after a cold fill; it can be normal condensation, not a tank leak.

A pilot that will not stay lit is more than an inconvenience; it can point to venting and combustion-air problems that can spill flue gases. The manual also notes that improper venting or vent dampers that inhibit draft can create a carbon monoxide hazard.

• Water heater pilot assembly 100093972 (pilot and thermocouple function)
• Draft hood 100111362 (supports proper vent draft)
• Water heater temperature and pressure relief valve 100108279 (if you see dripping from the relief valve)

Match parts to Kenmore 153330250 and compare the old part to the replacement listing. You can order parts from the list for this model, or search by model number on Sears PartsDirect.

Last updated: February 2026