BillyJoeJimBob
New Member
I dropped my Grundfos MQ3-45 off at the "Authorized Grundfos Service Center" for diagnosis a few weeks back. Long story short, the Service Manager says the reason why I couldn't get it to work was because I was connecting a pump wired for 230V to 115V, and that it tests good at his shop.
My primary concern was that the Logic Board was good. (They cost several hundred dollars to replace.) The pump was new 8 years ago, and was only used about 5 times at the cabin in the first year, before it sat unused for the next 7 years, so I would expect it's wear to be very minimal. Also, I have 2nd hand information that when it was used, it was able to lift water from a shallow well (actually a creek) about 32 ft. and provide adequate water to the cabin.
My concern is that it took several weeks to get the Service Center to even look at the pump, then a couple more weeks to finally get in contact with the Service Manager. It felt like they didn't want to do the work, and then when they "did" the work, it was a superficial job and
'push it out the door". And I need to know that, if I transport this pump 1000 miles to Ruidoso and install it, that it is going to provide adequate water.
The Service Manager said that they tested it and it produced about "42 pounds of pressure". I need to know what this means and/or what he meant, because when I went to look up the Grundfos pump's specs, it gives two different pressure specs and I don't know what they are, and which one he is referring to with his 42 psi number.
The Specs mention "109 psi" which as "output pressure" would be wonderful, and it also mentions 40 psi, which might be the Service Manager's number, but I have no idea what that is. There's words being used I don't understand also, like "static", "suction lift", "head", etc...
My concern is that if the pressure switch is preset to turn on at 30 psi and turn off at 50, but never develops more than 40, the pump will never turn off. He said it would turn off when the pump sense that water was no longer flowing, but the whole deal feels "hurry up" and I need to be able to rely on this information, as it's going 1000 miles away (literally) and the nearest Lowes is 150 miles away.
Another concern is, when I was trying to figure out what was wrong with it, I disassembled the jet-pump side of the pump. I THOUGHT I put it back together again correctly, but many of the parts looked exactly alike and if they are not, I might have mixed them up. So again I'm wondering if the 40 psi number quoted could be something closer to the 109 psi, if I had assembled the jet pump correctly. I'd hoped the Service Center would have disassembled the Jet Pump (for inspection) and then reassembled it, but I have almost no faith that they did anything but the bare minimum to get me to go away, and I need reliable information for the reason stated previously. The time to get this thing fixed is now, not when I'm in the middle of nowhere with no water or access to repair facility, etc...
Any help with this would be greatly appreciated, and thanks in advance.
PS
I'll post this on the chance it is useful. It looks like the site is Canadian. I don't know if that matters one way or the other, but I thought I'd mention it.
http://www.grundfos.ca/web/homeca.nsf/Webopslag/ALEE-64EH2U
My primary concern was that the Logic Board was good. (They cost several hundred dollars to replace.) The pump was new 8 years ago, and was only used about 5 times at the cabin in the first year, before it sat unused for the next 7 years, so I would expect it's wear to be very minimal. Also, I have 2nd hand information that when it was used, it was able to lift water from a shallow well (actually a creek) about 32 ft. and provide adequate water to the cabin.
My concern is that it took several weeks to get the Service Center to even look at the pump, then a couple more weeks to finally get in contact with the Service Manager. It felt like they didn't want to do the work, and then when they "did" the work, it was a superficial job and
'push it out the door". And I need to know that, if I transport this pump 1000 miles to Ruidoso and install it, that it is going to provide adequate water.
The Service Manager said that they tested it and it produced about "42 pounds of pressure". I need to know what this means and/or what he meant, because when I went to look up the Grundfos pump's specs, it gives two different pressure specs and I don't know what they are, and which one he is referring to with his 42 psi number.
The Specs mention "109 psi" which as "output pressure" would be wonderful, and it also mentions 40 psi, which might be the Service Manager's number, but I have no idea what that is. There's words being used I don't understand also, like "static", "suction lift", "head", etc...
My concern is that if the pressure switch is preset to turn on at 30 psi and turn off at 50, but never develops more than 40, the pump will never turn off. He said it would turn off when the pump sense that water was no longer flowing, but the whole deal feels "hurry up" and I need to be able to rely on this information, as it's going 1000 miles away (literally) and the nearest Lowes is 150 miles away.
Another concern is, when I was trying to figure out what was wrong with it, I disassembled the jet-pump side of the pump. I THOUGHT I put it back together again correctly, but many of the parts looked exactly alike and if they are not, I might have mixed them up. So again I'm wondering if the 40 psi number quoted could be something closer to the 109 psi, if I had assembled the jet pump correctly. I'd hoped the Service Center would have disassembled the Jet Pump (for inspection) and then reassembled it, but I have almost no faith that they did anything but the bare minimum to get me to go away, and I need reliable information for the reason stated previously. The time to get this thing fixed is now, not when I'm in the middle of nowhere with no water or access to repair facility, etc...
Any help with this would be greatly appreciated, and thanks in advance.
PS
I'll post this on the chance it is useful. It looks like the site is Canadian. I don't know if that matters one way or the other, but I thought I'd mention it.
http://www.grundfos.ca/web/homeca.nsf/Webopslag/ALEE-64EH2U
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