Pool heater causes noticeable vibration transmitted to the ground or mounting surface.

Safety first: Turn off power before working around the base or fan.

• Check level: Verify that the Hewalex unit is installed on a level, solid base. Shim or adjust as needed.
• Inspect vibration pads: Ensure rubber feet or anti‑vibration mounts are present and intact.
• Check fan balance: Look for dirt buildup or damage on the fan blades. Clean and replace if necessary.
• Tighten mounts: Tighten compressor and fan motor mounting bolts.