If your water heater pilot still refuses to stay lit after installing a brand new thermocouple, the issue points to other underlying mechanical failures. Common culprits include a defective gas control valve that cannot register millivolt signals, a pilot burner assembly blocked by spider webs or dust, a thermal rollout switch that has tripped due to blocked venting flues, or severe drafts in the utility room blowing the pilot flame away from the new thermocouple tip. Verification: Check the draft and inspect the gas control valve wiring or thermal switches.
1 votes
Marked as accepted