Water Heater Recirculation Pump Making Noise

If you hear noise coming from your hot water recirculation pump that isn t a good sign.

Water heater recirculation pump making noise.

The air will need to be bled out of the system. Zone circulator noise repair. I have run 1000 experiments to try to figure out the problem. This can be caused by a dishwasher or toilet bowl or by a water pump without a holding tank.

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. Install a water hammer arrestor between the offending device and the water heater. This made no sense since i didn t think i changed anything th. This article describes how to diagnose fix noisy circulator pumps on hot water or hydronic heating systems.

I had a noisy hot water circulation pump after replacing a few other heating system components. Air in the line. Hot water recirculation pumps sometimes have a very small motor which means that they can t produce much head pressure. Many of these pumps can t even turn on a tankless heater.

Once again there are a few different things it could be. Zone circulator pump repair procedures for noises. 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.

This can negatively impact the flow rate. The noise coming from your recirculation pump could also mean that the bearings are wearing out in which case you will need to replace the pump before it completely fails. The noise is not dangerous to your water heater but could lead to eventual wall damage if it is not corrected. Low flow rate sometimes hot water recirculation pumps have small motors which are unable to produce sufficient head pressure.