Hello, I have an MQ3-45 and it no longer switches off automatically. Is it possible to set the switch-off pressure?
@thesetruths140411 ай бұрын
Hi. My 12 year old MQ pump is used to pump 1,000 gallons every 5 to 7 days. The pressure gauge is pressuring to about 70psi, stops like it should, and then leaks down over about 3 to 4 minutes to about 30psi, and kicks on to repressure. If there are no leaks anywhere, could this failure be the "internal non-return valve?" I only have one pressure gauge on the pump, and I do not have a pressure tank.
@grundfos11 ай бұрын
Hi, thanks for reaching out to us. I am sorry to hear that you have an issue with your Grundfos product! I have reached out to a colleague who will be able to help, and I am now waiting for a reply. I will return to you as soon as possible. Thank you for your patience! :) Kind regards, Sofie