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Water Dripping from limit control

brucewo1b Member Posts: 638
You need a pro to come and replace the well ASAP as we all know water and electicity do not mix, well at least not pleasantly.


  • linda_3
    linda_3 Member Posts: 2
    Limit Control Switch has water dripping out of it

    This is a Weil McLain hot water furnace, radiator heat for a single family bungalow. I have water dripping out of the front of the limit control switch. Furnace is approx. 25 yrs old. Heat is still working good. Thanks in advance for any help anyone can offer. Have diverted drip to go into pan to prevent any damage
    Weil McLain furnace model PCG5 series 4
    140,000 BTU input
    112,000 BTU output
    Water Net I.B.R. Output 97.4 MBH
    Limit Control 140-240 Hydronic Division
  • linda_3
    linda_3 Member Posts: 2


    Can you tell me what the well is?

  • Weezbo
    Weezbo Member Posts: 6,232
    a wrench applied with skill and experince might correct that in

    short order.

    however if a person goes to wrenching on it without releasing the cap tube it is possible to completely ruin the controls abilities to function...
  • Guy_6
    Guy_6 Member Posts: 450

    The well is essentially a capped off tube that allows the control to feel the water temp. in the boiler without actually being in the water. It allows the control to be changed without draining the boiler. Like your finger in a rubber glove-you can feel the water without actually touching it.
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