N-069m pulsating when hot water is turned off
N-069m flow control valve is making vibration noise every few seconds when flow is shutoff. This pulsating continues for several minutes. When flow is on there is no noise. If the n-069m is electrically shut off during the time of the noise and then turned back on there is no noise.
Water Heaters - Noritz - 6.9 Gallon Residential Tankless Water Heater - N-069M
Answers & Comments
Do you have a well our on city water? Check in coming water pressure make sure it is not over 60psi