Ruud water heater vibrates excessively or makes loud humming when heating.

Safety first: Turn OFF power or gas if you need to touch moving parts or hot surfaces.

• Step 1 – Check mounting and piping: Ensure the heater is securely mounted and that hot/cold pipes are supported with proper hangers and not rubbing against framing.
• Step 2 – Inspect fan (tankless/power vent): Remove the cover and check the blower fan for debris or damage. Clean and tighten mounting screws.
• Step 3 – Flush tank (tank models): Perform a sediment flush to reduce boiling and popping noises.
• Step 4 – Add isolation: Use flexible connectors or vibration-isolating pipe supports if rigid piping is transmitting noise.