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  1. #1
    Join Date
    Jul 2012
    Location
    Richland, WA
    Posts
    248

    Pump down solenoid valve going bad

    I got a call from one of the stores saying that the coil for the walkin cooler was starting to build ice up on it. So I get there and flip the pump down switch to the off position and notice that it never pumps down all the way. Then it starts running again. At first thought it the the thermostat that was defective but come to find out that the pump down solenoid valve wasn't ever shutting off. So I went to one of the suppliers and got a new valve body and coil. The guts to the coil that was in there and the new one were the same so a senior tech came out the verify everything and so we replaced all the guts and now its working just fine and pumping down when its supposed to.

    How often do the pump down solenoid valve's go bad? This is the first that I've had to replace and it looks like its been in there since the unit was new.

  2. #2
    Join Date
    Feb 2008
    Location
    California
    Posts
    2,066
    I'm not sure there is an exact number anyone could offer as to how often they go bad.

    But as all mechanical things. They will all go bad... one day.

  3. #3
    Join Date
    Sep 2002
    Location
    Virginia
    Posts
    3,191
    they last a long time ..... but yea they do have moving parts that eventually fail like anything else

  4. #4
    Join Date
    Oct 2011
    Location
    Chicagoland Area
    Posts
    4,638
    Not all that common. If I run into 1 or 2 a year that's alot. They're more apt to leak than fail.
    Officially, Down for the count

    YOU HAVE TO GET OFF YOUR ASS TO GET ON YOUR FEET

    I know enough to know, I don't know enough
    Liberalism-Ideas so good they mandate them

  5. #5
    Join Date
    Oct 2012
    Location
    Wisconsin
    Posts
    3,852
    About one a year for me too. Hot gas valves in ice machines will go bad, but that isn't all that common either.

  6. #6
    Join Date
    Jun 2006
    Posts
    203
    I guess it depends on the unit. I've seen units with the same solenoid valve that are over 20 yr old and some that are replaced every couple years.

  7. #7
    Join Date
    Nov 2009
    Location
    Richmond, working under tarps
    Posts
    497
    emerson had a silent recall, leaky diaphrams..............shhhhhh.

    I believe date code was from 2009-2011

    We had multiple failures in a matter of a few PMs.

  8. #8
    Join Date
    Jul 2012
    Location
    Richland, WA
    Posts
    248
    the one that I had to replace was a Sporlan

  9. #9
    Join Date
    Nov 2009
    Location
    Richmond, working under tarps
    Posts
    497
    then it was time to be replaced/rebuilt

  10. #10
    Join Date
    Oct 2012
    Location
    riverside calif
    Posts
    71
    I can count on one hand the amount i've replaced.

  11. #11
    Join Date
    Nov 2009
    Location
    Richmond, working under tarps
    Posts
    497
    i'd run out of appendages.........be it liquid or hot gas solenoids.

  12. #12
    Join Date
    Oct 2012
    Posts
    10
    They go bad after a while, anything with moving parts is going to go bad eventually.

  13. #13
    Join Date
    Jul 2011
    Location
    Lehigh Valley, PA
    Posts
    453
    I found an Emerson liq sol with a leak on the ss coil stem where it is flanged to the nut. I silver brazed (stainless) but than I discovered afterwards on reassembly the plastic coil was also cracked probably due to freezer temps. So, ended up replacing entire solenoid coil anyway with a Sporland. The evaporator unit is only bout 1 yr old.

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