Results 1 to 3 of 3
  1. #1
    Join Date
    Oct 2001
    Post Likes

    Mammoth WSHP..diagnostic ??

    i had a F086HH L J 2 scroll comp unit cycled in AUTO/HEATwith temp adj off stat but no action on the compressors.......both solid state boards had steady green LEDs stat showed 2stages calling nothing up in the the green suppose to blink in normal mode?????? 100F entering loop water for wintr ops
    "when in doubt...jump it out"

  2. #2
    Join Date
    Nov 2010
    Post Likes
    Two different models (don't remember #'s) I have worked on LED status was

    Green on = 24 volts present

    Green on = normal operation

  3. #3
    Join Date
    Mar 2003
    Post Likes
    There are soo many versions of their stuff, but it could be something as simple as a manual reset high pressure control. sometimes they wire those in series with the start circuits, it depends on age, control version, application, etc. sometimes with those, you gotta follow the electrons. break out your meter and hopefully a wiring diagram, otherwise trace the wires to be sure. on others, they used an oversized compressor that pulled down to quickly and tripped the low pressure, but had no indication. it can only be found by watching your gages and checking the start circuit. Those had to have low pressure bypass timers installed aftermarket.

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts

Related Forums

Plumbing Talks | Contractor MagazineThe place where Electrical professionals meet.
Quality Home Comfort Awards