Water Heaters - Rumbling Noise
Troubleshooting noise issues for Electric and integrated Electronic Mixing Valve (EMV) Water Heaters:
| NOISE | POSSIBLE CAUSES | WHAT TO DO |
| Rumbling noise | Water conditions in the home caused a buildup of scale or mineral deposits on the heating elements. | The heating elements need to be removed and cleaned. This should only be done by a qualified service person or plumbing contractor. |
| Squeaking/Chirping sound when drawing hot water (EMV models) | In certain usage conditions, noise may transmit through the plumbing from the integrated mixing valve. | Increasing user set point or lowering capacity setting may address this condition on integrated mixing valve models. Consult a plumbing professional to install a pressure limiting device, if due to high water pressure. |
| Intermittent EMV motor noise | A soft motor noise may be heard during normal operation due to movement of the control valve. | This noise is normal and does not indicate any issue with the unit. |