Grundfos mq345 troubleshooting

Do not start the pump unless it has been filled with water, or primed. Do not remove the pressure tank from the pump unless it has been vented through the air escape valve. Do not use force when connecting the pipes to the pump.

Troubleshooting can be done both proactively before pump failure occurs and once the issue has already set in. I was working on the system earlier and checked the pressure gauge. The static pressure was pinned on the gauge at over 1PSI and the dynamic would drop to PSI. For the past week or so, the pump has been acting strangely when water is turned on. This on demand pump goes on when a faucet is turned on but it very consistently shuts off abruptly and turns immediately back on every seconds or so.

In this section, you can find descriptions of each specific service product. Year Well Owner, no problems until now. The MQ pump is designed for water supply and pressure boosting. The pump is suitable for pumping of potable water and rainwater.

Features and benefits. All-in-one pressure booster unit. Dry-running protection. Liam O Gogain 27views. Ремонт насосной станции. Is this a pump problem?

Anyone else come across something like this? With no pressure tank or switch, fewer. Use the site as normal if you accept this. For more detailed information, please read our full cookie policy. All units are cleane dismantled and reports produced relating to condition, an estimate is given in order to provide a detailed quotation.

If repair is not a cost effective option, an alternative service exchange unit will be offered. We offer various repair service options. It is the ones with electronic circuits that are the least reliable.

If you had purchased one of the regular JP series jet pumps it would not be giving you problems , because it has no electronics to cause problems. It is either the electronic boards or the sensors that go to them that cause the problems. A regular dumb pump controlled by a regular. Grundfos makes some really good pumps.

Dosing Pumps DDI22 DME DME DME(DME and DME 150) and DME(DME 3and DME 940). Global push for net-zero recovery from COVID-19. In the largest ever UN-backe CEO-le. Pump Problem 5: Pump speed settings are incorrect. They are extremely easy to adjust.

And usually they are between and 3. It used to stay off for minutes when it was new. A self-priming pump, the MQ 3-is able to pump water from a level below the pump. Provided it is filled with water, the pump is able to lift water from a depth of m. If exposed to dry running or excessive temperature, e. MQ3-pump will stop automatically, preventing a motor burnout. Pictures show the old pump it is the same as the new one.

TROUBLESHOOTING TIPS FOR GRUNDFOS CR PUMPS. Click HERE for a PDF of this article. The pump runs - but at a reduced capacity or does not deliver water Wrong rotation - Check wiring for proper connections, correct wiring.

Strainers, check valves, or foot valves are clogged - Remove strainer, screen or valve and inspect. Information and advice. We have a trained staff of service engineers who will be able to support you during the installation phase of the pump or solution.

LEAD LAW WARNING: It is illegal to install products that are not lead free in accordance with US Federal or other applicable law in potable water systems anticipated for human consumption.