GE water heater vibrates or rattles loudly during heat pump operation.

Safety: Turn off power at the breaker before tightening any components.

Steps to reduce vibration:

• Check leveling: Ensure the heater is level using a spirit level. Adjust feet or shims as needed.
• Inspect fan assembly: Remove upper cover and check that the fan shroud and motor mounts are tight. Tighten screws.
• Check fan blade: Inspect for damage or debris on blades. Clean and replace if cracked or warped.
• Compressor mounts: Verify compressor mounting bolts are snug but not overtightened to allow proper vibration isolation.