Water Heater Recirculation Pump Making Noise

Once again there are a few different things it could be.

Water heater recirculation pump making noise.

The noise is not dangerous to your water heater but could lead to eventual wall damage if it is not corrected. Air in the line. Zone circulator pump repair procedures for noises. This can negatively impact the flow rate.

Some water heaters have an exhaust blower and they can be a bit noisy. Install a water hammer arrestor between the offending device and the water heater. Such a blower would run whenever the water heater s burner is running which would occur from time to time anyway but especially after you ve used hot water. If there has been a power outage or air has gotten into the line for some reason the pump can make a lot of noise.

This article describes how to diagnose fix noisy circulator pumps on hot water or hydronic heating systems. Hot water recirculation pumps sometimes have a very small motor which means that they can t produce much head pressure. This can be caused by a dishwasher or toilet bowl or by a water pump without a holding tank. The air will need to be bled out of the system.

This made no sense since i didn t think i changed anything th. I have run 1000 experiments to try to figure out the problem. Many of these pumps can t even turn on a tankless heater. If you hear noise coming from your hot water recirculation pump that isn t a good sign.

We distinguish among buzzing relays that control the circulator vibrating electric motors shrieking circulator bearings and circulator pump noises. The pump has an internal check valve and there is a separate check valve on the cold water supply line to the water heater. Zone circulator noise repair. Low flow rate sometimes hot water recirculation pumps have small motors which are unable to produce sufficient head pressure.