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  1. #1
    Join Date
    May 2007
    Location
    Central NJ Area
    Posts
    888

    Diversitech Condensate Pump Issues

    Has anyone else been having issues with diversitech's CP-22 condensate pump floats? Most of the CP-22 yellow Styrofoam floats have been shriveling/shrinking causing the float switch not to engage resulting flooding. It also prevents the saftey overflow relay from opening shutting the system down.

    Diversitech's ClearVue pump can not be used on condensing furnaces ,or humidifers that use hot water, because steam (condensate) in the pump reservoir cause the floatless sensor technology to malfunction. The pump will continuiously turn on and off....

  2. #2
    Join Date
    Mar 2010
    Location
    Rochester, NY
    Posts
    471
    I haven't had any of these issues yet...but I will be on the look out for the float issues. I used to use Little Giant pumps but I have replaced them all with Diversitech because of mirco switch problems w/ L.G.

  3. #3
    Join Date
    Jan 2008
    Location
    s chester county,pa
    Posts
    146
    I have had to replace many of these pumps for the same reason and results you have experienced. Most under a year old. Replaced with a different brand.

  4. #4
    Join Date
    May 2007
    Location
    Central NJ Area
    Posts
    888
    Ive been doing the exact opposite. i've been replacing all the diversitech because almost all of the one i've installed have failed in the past 2 years. I origionally replaced the L.G with diversitech..i was better off withthe L.G. I'm gonna bit the bullet and install only the heavy duty hartell pumps. I'll probably give the customer the option and let them know of the issues of the less expensive models.

  5. #5
    Join Date
    Dec 2004
    Location
    Grand Rapids, MI
    Posts
    625
    we also have had many 'diversitech' failures in the past year,
    we are proactivly replacing to little giant during our annual tune-ups ( if the client has a 10 year warranty ).
    we did look at the hartell pumps, but could not figure out how to take apart to clean, except for the empeller cover.
    is there a different model ?
    luck dan

  6. #6
    Join Date
    Feb 2010
    Location
    Calgary, Alberta
    Posts
    1,155
    All we use are little giant pumps. They're little "tanks".
    I can honestly say I replace less than one a year, and furnaces up here make gallons of condensate over night when it's cold.

  7. #7
    I have the diversitech cp -22 and have been experiencing problems with it. I took it apart cleaned everything. I filled the reservoir with water and it would not pump. So I took the cover off and raised the float manually and it pumps. Put the cover back on and filled it with water and nothing again. It will run and pump when I either manually raise the floaty or shake the pump a bit. I've read about the problems people have been having with these floatys. Does this sound like I need a new pump or new floaty? I just wanted to make sure before I go out and buy one because the fact that the pump runs when I shake it a bit threw me off...

  8. #8
    Join Date
    Nov 2006
    Location
    Southeastern Pa
    Posts
    19,558
    I don't think you can get repair parts for those pumps.
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  9. #9
    Join Date
    May 2007
    Location
    Central NJ Area
    Posts
    888
    Quote Originally Posted by steveo2155 View Post
    I have the diversitech cp -22 and have been experiencing problems with it. I took it apart cleaned everything. I filled the reservoir with water and it would not pump. So I took the cover off and raised the float manually and it pumps. Put the cover back on and filled it with water and nothing again. It will run and pump when I either manually raise the floaty or shake the pump a bit. I've read about the problems people have been having with these floatys. Does this sound like I need a new pump or new floaty? I just wanted to make sure before I go out and buy one because the fact that the pump runs when I shake it a bit threw me off...

    Check to see if your yellow float had shriveled up and isn't large. It's probably the float. I have a box of replacements for this exact problem.

  10. #10
    Join Date
    May 2007
    Location
    Central NJ Area
    Posts
    888
    Btw, I've found large wine corks fit where the float resides!

  11. #11
    Join Date
    Nov 2011
    Location
    michigan
    Posts
    46
    ive had nothing but problems with that pump ive seen them go bad in a month little giant is the best I think

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