SunHeater
Gas Leak or Incomplete Combustion
Heater emits a strong gas smell around the unit, especially before or after operation
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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
Loose gas union, Cracked gas manifold, Leaking gas valve, Improperly sealed fittings
How to Fix / Troubleshooting
Emergency safety: Turn off the gas supply at the shutoff valve immediately. Do not operate the heater, do not use open flames, and do not turn electrical switches on or off near the leak.
- Ventilate the area: Open doors and windows around the equipment pad to disperse gas.
- Do not attempt DIY gas repairs: Gas leaks must be located and repaired by a licensed gas technician using proper leak detection equipment.
- Visual check only: You may visually inspect for obviously loose unions or fittings on the Gas Manifold Assembly, but do not tighten or disassemble without proper tools and training.
- Leak test after repair: Ensure the technician performs a full leak-down and soap-bubble test on all joints before returning the heater to service.
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Repair Difficulty
Professional Required
5/5
Required Part
Gas Manifold Assembly
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