Heating Troubleshooting
Pilot Light Won’t Stay Lit?
Gas pilot lights but dies as soon as you release the button — almost always a bad thermocouple. Quick fix. CAC1819196.
Quick Answer
Pilot won’t stay lit = thermocouple failure (99% of cases). Thermocouple senses pilot flame; when bad, it incorrectly signals no flame, shutting gas. Fix: thermocouple replacement $279. Same-day Tampa service. FREE diagnosis. If you smell gas: LEAVE + call TECO 813-275-3700. Call (813) 343-2212.
Thermocouple Failure
Thermocouple Worn Out
Symptom: Pilot lights, goes out 10-30 seconds after releasing button.
Replacement $279. 2-5 year lifespan typical.
Thermocouple Dirty
Symptom: Pilot goes out when burner tries to light (bigger flame dislodges sensor).
Cleaning sometimes works DIY. Pro: $279 includes replacement.
Gas Valve Issue
Symptom: Pilot never lights at all, no gas flow.
Gas control valve replacement $299.
What to Do Right Now
- Follow unit’s relight instructions (sticker on heater).
- If won’t stay lit after 3 tries: thermocouple issue.
- If gas smell: LEAVE house, call TECO + us.
- Call (813) 343-2212 for FREE diagnosis.
FREE diagnosis. Thermocouple: $279. Gas valve: $299.
FAQ
Why do thermocouples fail?
Metal fatigue from repeated heating cycles. 2-5 year typical lifespan. Tampa intermittent use shortens it.
Can I replace it myself?
Technically possible but involves gas work. $279 pro with warranty is safer.
Gas smell — dangerous?
Leave the house immediately. Don’t use phones or switches inside. Call TECO (813-275-3700) + us.
Tampa homes still use pilot lights?
Older water heaters + some gas furnaces yes. Newer units have electronic ignition (no pilot).