Lochinvar
Chemical Fume Ingestion / Corrosive Atmosphere
Heater frequently shuts down with a strong chemical smell around the unit.
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Safety Warning
This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.
If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.
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Possible Causes
Pool chemicals stored near air intake, Exhaust recirculation into intake, Indoor installation without proper ventilation
How to Fix / Troubleshooting
Safety: Prolonged exposure to chemical fumes can damage the heater and create unsafe combustion.
Steps:
- Relocate chemicals: Move chlorine, acid, and other pool chemicals to a separate, well-ventilated storage area away from the heater.
- Check intake location: Ensure the combustion air intake is not drawing air from a chemical storage area or from near the pool surface where fumes accumulate.
- Verify venting: Confirm that exhaust gases are not being pulled back into the intake (no recirculation).
Corrosion damage from chemicals may require component replacement; have a technician inspect the burner and heat exchanger.
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Repair Difficulty
Medium
3/5
Required Part
Combustion Air Intake Components
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