A.O. Smith FDV - User Manual

Questions and Answers

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Natasha KimAug 16, 2025
What to do if the pilot light keeps blowing out on my A.O. Smith Water Heater?
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  dancooperAug 16, 2025
  If you're not getting any hot water from your A.O. Smith Water Heater and the pilot blows out, inspect all vent joints to ensure they are properly sealed. Check both the inner and outer pipes, as well as the rear air tube seals. Also, install the A. O. Smith-provided vent cap. Reposition or replace the vent if necessary. If there's a missing or improperly installed gasket, replace or correctly install it and tighten any loose screws.
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Robert PalmerAug 19, 2025
Why is my A.O. Smith Water Heater not providing enough hot water, even after adjustments?
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  Jeffrey KempAug 19, 2025
  If you're not getting enough hot water from your A.O. Smith Water Heater, it might be because the heater is too small. Consider replacing it with a larger heater, adding another heater, or decreasing your water usage. Also, correct any other issues as needed.
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Amanda RoseAug 21, 2025
What causes yellow flames or soot on my A.O. Smith Water Heater if the combustion air is restricted?
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  Traci CuevasAug 22, 2025
  If you're experiencing yellow flames or soot with your A.O. Smith Water Heater, it may be due to restricted combustion air. Check the vent for any restrictions. Also, reinstall the vent as recommended in the installation manual.
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Alejandro CollierAug 25, 2025
Why won't the pilot stay lit on my A.O. Smith Water Heater?
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  Steve PriceAug 25, 2025
  If you're not getting any hot water from your A.O. Smith Water Heater because the pilot won't stay lit, check the gas pressure. The minimum pressure should be 4.5" W.C. (contact your gas company if needed). Tighten any loose connections, and replace parts as necessary. Ensure the flame is 3/8" in size. Change the pilot orifice and replace the gas valve if required. Bleed the system as needed.
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Lisa StanleyAug 28, 2025
What to do if the pilot light keeps going out on my A.O. Smith Water Heater?
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  sandovalmichelleAug 28, 2025
  If the pilot light won't stay lit, begin by checking the gas pressure. Then, check the thermostat MV drop-out voltage. Inspect the thermocouple connection and MV output, tightening it if loose or replacing it as necessary. Ensure the thermocouple is correctly placed in the pilot flame, about 3/8 inch should be in the flame. Check the pilot for a proper flame and consider changing the pilot orifice. Finally, check the ECO operation and for air in the pilot tube, replacing the gas valve and bleeding as necessary.
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Richard RobersonAug 31, 2025
How to fix A.O. Smith Water Heater when pilot blows out?
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  Robert ThomasAug 31, 2025
  If the pilot blows out, check all vent joints for a proper seal, examining both the inner and outer pipe and the rear air tube seals. Ensure you have the proper vent cap installed, ideally the one provided by A. O. Smith. Check for a bent, missing, or mislocated pilot shield (on natural gas units only), replacing or repositioning it as needed. Also, inspect the outer door seal, replacing the gasket if it's missing, tightening loose screws, or properly installing the gasket if it's misinstalled.
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Paul JensenSep 3, 2025
How to troubleshoot no hot water from my A.O. Smith Water Heater when there's no gas to pilot?
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  xmcdonaldSep 3, 2025
  If you're not getting any hot water from your A.O. Smith Water Heater, start by checking the gas supply to the pilot. Turn it on and check the pressure. Ensure it's turned on, and replace it if needed. Clean the pilot orifice with air or replace it. Finally, replace the pilot tube if necessary.
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Mrs. Nicole RobertsSep 5, 2025
What causes condensation on my A.O. Smith Water Heater, and how do I fix it?
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  Melinda WatkinsSep 5, 2025
  If you're experiencing condensation with your A.O. Smith Water Heater, possibly due to low gas pressure, check the gas supply pressure. Install a proper vent cap, reinstall the vent in the correct location, reseal the venting, and seal as necessary.
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Alexander ValdezSep 9, 2025
What to do if my A.O. Smith Water Heater is not producing enough hot water and the burner orifice is incorrect?
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  Jonathan TurnerSep 9, 2025
  If you are not getting enough hot water from your A.O. Smith Water Heater, replace the incorrect burner orifice with the correct size.
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coreygoldenSep 12, 2025
What to do if A.O. Smith Water Heater is too small and not providing enough hot water?
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  Dustin NormanSep 12, 2025
  If your heater is too small, replace it with a larger heater, add another heater, or decrease your water usage.