my grundfos MQ 3's motor sounds like it is locked up. When i plug it in everything seems to work except the motor just humms until the alarm shuts it off. There is nothing blocking the impeller. What ...
...MQ pump intermittantly continues to run when there is no demand, especially after drawing off a small quantity of water. It then overheats. The plumber has replaced the pressure tank but the problem ...
I have a problem with the MQ-35 pump starting and running for about 10 minutes when there is constant demand (such as running a sprinkler) and it then alarms and shuts off for 30 minutes before it ...
...in pressure regulator. or use more water. There are only a couple of conditions that will cause an MQ to cut out, those being: full pressure being reached, a dry run condition (takes 30 secs to
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