Raypak Weather‑Related Nuisance Shutdown

Heater shuts down when it rains or after heavy wind; may restart when dry or calm.

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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

Rain entering vent or cabinet, Wind‑induced downdraft in vent, Poor vent termination location, Inadequate cabinet sealing

How to Fix / Troubleshooting

Safety first: Turn off power and gas before inspecting venting in adverse weather.

Steps to mitigate weather‑related shutdowns:

  • Inspect vent termination: Ensure the vent cap is properly installed and rated for the installation. Replace damaged caps.
  • Check for water entry: Look for signs of water inside the flue collector or on the burners. Correct flashing or vent joints to prevent leaks.
  • Wind effects: If the vent terminates in a high‑wind area, consider a wind‑resistant cap or relocating the termination per Raypak guidelines.
  • Seal cabinet: Replace missing gaskets or seals on access panels to reduce water intrusion.

Note: Persistent weather‑related issues may require a venting redesign by a professional.

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Repair Difficulty

Medium 3/5

Required Part

Vent Cap
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