Cannot remove Zone Controller

Discussion in 'General Plumbing Help' started by jolleyi, Jun 13, 2014.

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  1. Jun 13, 2014 #1

    jolleyi

    jolleyi

    jolleyi

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    Hi, I have a gas fired boiler for a hydronic heating system. I have 3 zones using Honeywell V8043F control valves. I recently replaced one which the guy servicing the boiler said had a short (it was sparking) and all is well with that zone.
    When the guy was servicing the system he took off the powerheads and lubed the valve stems, all except one powerhead which would not come off. Has anyone experienced this?
    I can take out the 2 screws which hold the powerhead onto the valve body and wiggle it from side to side but it will not come off. (usually these just lift off easily).
    I have been very careful not to get too rough with it as i do not want to damage the valve and have to sweat a new one in place.
    Any ideas?
     
  2. Jun 14, 2014 #2

    DFBonnett

    DFBonnett

    DFBonnett

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    Do you have the manual lever in the open position?
     
  3. Jun 14, 2014 #3

    jolleyi

    jolleyi

    jolleyi

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    I've tried it in the open and closed position, (using the lever), the result is the same.
    thanks
     
  4. Jun 14, 2014 #4

    johnjh2o

    johnjh2o

    johnjh2o

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    If I'm not mistaken there is a small clip that fastens the motor to the stem that has to be removed.
     
  5. Jun 19, 2014 #5

    jolleyi

    jolleyi

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    No clip, but i dismantled the power head and found the black plastic part was damaged, causing it to sit at an angle. Assume this was the problem.
    Back in business with a new powerhead.
     

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