1. Welcome to PlowSite. Notice a fresh look and new features? It’s now easier to share photos and videos, find popular topics fast, and enjoy expanded user profiles. If you have any questions, click HELP at the top or bottom of any page, or send an email to help@plowsite.com. We welcome your feedback.

    Dismiss Notice

Plow motor running alll the time

Discussion in 'Commercial Snow Removal' started by farmertim, Jan 25, 2003.

  1. farmertim

    farmertim Member
    Messages: 95

    Ok current and former Uni-mount owners...

    What would cause the plow motor to run all the time even though the plow is not asked to do anything?
    It happens only after I engage the plow motor after hooking it up. then it will stop when I unhook the main power plug, but run continually again after rehooking the main power plug again but only after I engage the motor again.
    Any idea's

    Thanks Tim
  2. Arc Burn

    Arc Burn PlowSite.com Addict
    Messages: 1,141

    Something freaky with your motor relay,your juice goes in the relay and comes out when "asked for" like when you hit your controll up,down etc. Your juice is running straight thru the relay sounds like.
  3. Grshppr

    Grshppr Senior Member
    Messages: 268

    I'd try putting a new switch solenoid on it. II don't know where yours would be but mine is on the firewall. The are only 12-15 dollars any way.
  4. Garagekeeper

    Garagekeeper Senior Member
    Messages: 459


    Tim more that likely you have a bad solenoid. They can stick in the on position causing the motor to get power all the time. Try plugging in your plows power connector and tapping on the solenoid, if the motor stops you have found you problem. You may also want to see it the motor runs with the controller disconnected, I haven't seen one fail keeping the motor running but anything is possible :rolleyes: John
  5. Arc Burn

    Arc Burn PlowSite.com Addict
    Messages: 1,141

    So your not confused the solenoid and motor relay are the same part,just different names and for whatever reason i end up changing one every other year.Not hard at all,only a few wires and your back in biz.
  6. Earthscapes

    Earthscapes Senior Member
    from WNY
    Messages: 577

    Motor (solenoid) relay for sure... happened last nite,,almost burned up the alternator.
  7. Jerre Heyer

    Jerre Heyer Senior Member
    Messages: 948

    Good one here.....Customer hooked the power plug in backwards.......Shouldn't be able to but anything can happen with a few beer's.......Kept the motor running till he pulled the plug and put it back in........Did this several times before calling to demonstrate what whas happening.......

    Laughed all the way back to the shop. Jerre

    On the serious note. Solenoid can stick open ( no power out when triggered ), Stick closed ( full power all the time ), or intermittently ( stays on till deenergized--pull the plug ) or hit with something.

    Carry a spare and the parts to change it and life will be much nicer at 3:00 a.m. when it happens in the middle of the storm.