Why does my Rinnai water heater make noise?

Typically, your tankless water heater makes noise for one of five reasons, or a combination thereof. Those reasons include loose parts, restricted water flow, sediment buildup, water pressure fluctuations, or vibrations. Vibrations: A ticking sound is the most common noise caused by changing water pressure.

Why does my tankless water heater make a lot of noise?

Another standard issue that causes loud noises in tankless water heaters is a dirty flow sensor. The sensor controls the amount of gas sent to the unit. A blocked or improper ventilation, and even a defective or wrongfully set pressure valve can also make your tankless water heater loud.

Why does my Rinnai tankless water heater make a noise?

My tankless water heater started making a horrible noise when activated. The noise is like the unit is about to shake off the wall. It’s mostly noise from vibration of the unit. It lasts several seconds at start-up, then quits. Any ideas?

What is the Rinnai fault code for a water heater?

Rinnai fault code 11 – No ignition. Check to make sure the gas is turned on at the water heater, gas meter or tank. Ensure the igniter is operational. If gas is being supplied to the tankless water heater and the igniter is working, call for an evaluation by a qualified plumber.

Why does my water heater make a clicking noise when turned on?

If you hear a clicking noise, this is typically just the flow switch turning on and off to start and stop the flow of water and is completely normal. If it’s making a lot of noise when turned on, it may be because calcium deposits are being left behind due to hard water in your area. Installing a water softener system may be necessary.

Why does my Rinnai air conditioner make a noise?

The noise is like the unit is about to shake off the wall. It’s mostly noise from vibration of the unit. It lasts several seconds at start-up, then quits. Any ideas? I would call an Rinnai Authorized Service Tech. to diagnose and repair the problem.