Pilot light won't stay lit
Often a worn thermocouple, a dirty pilot assembly, a draft or a gas valve fault.
Gas Water Heater Repair in San Diego
Pilot light out, no hot water or a unit that keeps shutting off? Get connected with an independent San Diego provider for gas water heater repair.
- Pilot & Thermocouple
- Gas Valve & Burner
- Venting Problems
Gas Water Heater Repair When the Flame Goes Out
A gas water heater relies on a pilot or igniter, a thermocouple or flame sensor, a gas valve, a burner and a vent to work safely. When one of those parts wears out or gets blocked, you can lose hot water, or the unit can shut itself down for safety. Call or send a request and you'll be connected with an independent San Diego provider who can diagnose the fault and, in many cases, repair it. Availability depends on the day, your location and whether parts are on hand.
Gas work needs extra care, so this page focuses on gas units specifically. For general problems on any type, see same day water heater repair. If you smell gas, see the safety steps below and read emergency water heater repair. If your unit is beyond saving, ask about same day water heater replacement. You can also browse all water heater services or return to the San Diego homepage.
If You Smell Gas
Safety comes before repair. Gas leaks are an emergency, not a DIY job.
- 1
Don't create a spark
Don't touch light switches, use a lighter or flame, or plug in or unplug anything.
- 2
Leave the area
Get everyone, including pets, out of the home or building right away.
- 3
Call from outside
Call your gas utility or 911 from a safe distance once you're outside.
- 4
Wait for clearance
Don't go back in or relight anything until the gas has been checked and cleared.
Once it's safe, request repair here and you'll be connected with an independent provider.
Common Gas Water Heater Problems
Describe what you're seeing and you'll be matched with the right kind of provider. A technician confirms the cause on site.
No hot water
Can come from a pilot or ignition failure, a thermostat or gas valve fault, or a lockout for safety.
Same day repair →Thermocouple or flame sensor failure
A worn safety sensor can shut off the gas when it can't detect the flame.
Gas valve or thermostat faults
Temperature swings, water that's too hot or cold or a burner that won't light may point to the control.
Burner problems
Dirty or clogged burners can cause weak, uneven or noisy flames and reduce heating.
Venting and draft issues
Blocked or damaged venting can cause shutdowns and is a safety concern. Leave venting work to a pro.
Leaks from fittings or valves
Loose fittings and valves can be repaired. A leaking tank usually means replacement.
If it's the tank →Rumbling or popping noises
Often sediment on the bottom of the tank, which can also reduce efficiency over time.
Maintenance →Relief valve discharging
Hot water or steam from the valve can signal excess pressure or temperature and needs prompt attention.
Emergency help →How a Gas Water Heater Works, and Where It Fails
Gas water heaters heat water using a burner at the base of the tank. A pilot light or electronic igniter lights the burner, a thermocouple or flame sensor confirms there is a flame, a gas valve controls the supply and a thermostat tells the unit when to heat. Exhaust gases leave through a vent, and a relief valve protects against excess pressure.
Most faults trace back to a small number of parts: a worn thermocouple, a dirty pilot, a control or thermostat issue, a clogged burner, or a venting or draft problem. Sediment in the tank and an aging tank are also common. Knowing the symptom helps a provider come prepared, so note what the pilot and flame are doing when you call.
What to Leave to a Professional
Some steps are reasonable for homeowners. Gas work is generally not.
Reasonable to check yourself
- Whether other gas appliances are working
- Whether the unit's control is set to the right temperature
- Reading the unit's manual and noting any indicator lights
- Noting the pilot and flame condition without touching parts
Leave these to a qualified provider
- Replacing a thermocouple, gas valve or burner parts
- Anything involving gas lines or fittings
- Venting repairs or adjustments
- Repeated pilot relighting when it keeps going out
Homeowners are responsible for verifying the licensing, insurance and qualifications of any provider they hire.
How Gas Water Heater Repair Works
- 1
Call or request
Tell us the problem, the pilot condition and your San Diego area location.
- 2
Get connected
You're matched with an independent local provider who works on gas units.
- 3
Diagnosis and options
The cause is found and you review repair options and price.
- 4
Repair and test
If you approve, the repair is completed and the unit is tested.
Repair or Replace Your Gas Water Heater?
A provider can confirm on site, but these are common signs.
Repair usually makes sense when
- The unit is fairly new
- The problem is a part such as a thermocouple, thermostat or gas valve
- The tank isn't leaking
Replacement often makes sense when
- The tank itself is leaking
- The unit is around 10 years old or older
- Repairs keep coming back or venting is damaged
Ask for both options and pricing. If replacement wins, see same day water heater replacement, or consider switching to tankless water heater installation. Have an electric unit instead? See electric water heater repair. Running a business or rental? See commercial water heater repair. Our blog also has more tips.
Help Prevent the Next Gas Water Heater Problem
Routine service can catch small issues before they turn into a shutdown. For gas units, that typically includes flushing sediment from the tank, checking the relief valve, inspecting the anode rod, cleaning and checking the burner and pilot area, and confirming the venting is clear and intact. How often depends on your unit and your water, and San Diego's water is often described as hard.
Ask your provider what a maintenance schedule should look like for your unit, or see water heater maintenance for what it typically covers.
Why Use This Service
San Diego Water Heater Replacement is a lead generation service. We connect homeowners and businesses with independent local water heater providers; we don't perform the repair ourselves.
Local providers
Requests are routed to independent providers serving San Diego County.
Gas focus
Mention your gas unit and the pilot condition so you're matched appropriately.
Safety first
Smell gas? Leave and call your gas utility or 911 before requesting repair.
Clear options
Ask for repair and replacement options and pricing before work begins.
Gas Water Heater Repair Across San Diego County
We connect gas water heater repair requests in San Diego, Chula Vista, El Cajon, La Mesa, National City, Imperial Beach, Coronado, Poway, Santee, Escondido, Vista, San Marcos, Carlsbad, Encinitas and Oceanside.
Gas water heaters are found in homes and small businesses across the county, and setups vary, so a provider will assess your specific unit. Start with the San Diego page for city-level details, or see the full list of service areas.
Gas Water Heater Repair FAQ
Can I get gas water heater repair in San Diego today?
In many cases, yes. Call or send a request and you'll be connected with an independent local provider as soon as possible. Availability depends on the day, your location, the unit and whether parts are on hand.
Why won't my gas water heater pilot light stay lit?
Common causes include a worn thermocouple, a dirty pilot assembly, a draft or venting problem or a gas valve fault. A provider can diagnose the cause on site. If you smell gas, leave the area and call your gas utility or 911.
What should I do if I smell gas near my water heater?
Don't touch switches or use a phone or flame inside. Leave the area right away and call your gas utility or 911 from outside. Do not try to relight or repair the unit yourself.
How much does gas water heater repair cost?
It depends on the problem, the type of unit and the parts needed. A thermocouple is typically a different job from a gas valve or burner repair. Ask the provider for a price and your options before any work begins.
Is it worth repairing an old gas water heater?
Often yes for a minor fix on a newer unit. If the tank is leaking, the unit is around 10 years old, or repairs keep repeating, replacement usually makes more sense.
Can I relight my gas water heater pilot myself?
Some manufacturers publish relighting steps in the unit's manual, but only if there is no gas smell. If the pilot won't stay lit or you're unsure, stop and call a qualified provider. Repeated pilot failures point to an underlying fault.
Does gas water heater repair require a permit?
Minor repairs often don't, but work involving gas lines, venting or replacing the unit may. Ask your provider to explain the requirements for your address.
Gas Water Heater Not Working? Call Now
Call now to get connected for gas water heater repair in San Diego.