GFCI tripping and cutting off furnace

Discussion in 'The DIY corner' started by Tim, Jan 3, 2020.

  1. noway2

    noway2 Senior Member Charter Life Member

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    Could be a high efficiency gas furnace. They produce condensate. Or he could have a humidifier. We had trouble with my parents one that we discovered a week ago during the fall service. The GFCI breaker on the pump tripped. We turned it on and it ran the pump but didn’t drain. The service tech thought it was a bad pump, but the line was clogged even though he put tabs in to prevent it in the spring. The condensate pump is for the water heater, humidifier, dehumidifier, and evaporator.
     
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  2. Carolinatlc

    Carolinatlc Member Charter Member Supporting Member

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    This, it’s a condensing furnace probably with a secondary heat exchanger. Gets every last bit of heat out of the exhaust. I have a Heat pump at our house currently but installed a high efficiency gas furnace at the last place and it was similar.

    I installed a condensing tankless water heater at our current house and it definitely has some condensate. First year after install the drain line froze and shut the hot water off. Ended up insulating the drain line and have been good since.
     
    Last edited: Jan 3, 2020
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  3. JimB

    JimB Picking it up slowly. Benefactor Charter Life Member

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    Thanks guys!
     
  4. jjwestbrook

    jjwestbrook Happy to be here Supporting Member

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    it is a 95% furnace there are 2 condensate {white pvc} going in to the pump pictured 1 from the ac coil and 1 from the furnace
     
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  5. jjwestbrook

    jjwestbrook Happy to be here Supporting Member

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    yes why do you ask ?
     
  6. vaskeet

    vaskeet Active Member

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    ok understand now
     
  7. Schattenreiter

    Schattenreiter Member

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    A GFCI is not really there in case water gets into the receptacle. They are typically used in wet locations to prevent shock in case of a ground fault. Hence the name. Never tried one to see if it is true or not but it is suppose to trip faster than you will get shocked if a fault occurs.
     
  8. BlackGun

    BlackGun Pimpin Ain’t Easy Supporting Member

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    1. Do this ^^^^^^. GFCI breaker or receptacles are required in damp locations. I would take it out and put in a normal duplex receptacle. Moisture in a basement or crawl space, even in the damp air will activate the GFCI. If you don’t stand in water when you plug it in you will be ok and so will everything else. If only one Romex cable runs into the junction box then it’s not feeding other receptacles (which is ok).

    2. And yes a gas furnace must have a drain line.

    3. I’ll split the $250.00 service call with @jjwestbrook. PayPal friends please.


    Note: I have spent the whole day helping one of our members on GFCI circuits because some inspection company has insisted for refinancing a complex, GCFIs are necessary. Problem is nothing has been wired correct and the ground faults are not working on half of them after installation due to issues on the load side of the ground fault receptacle.

    I have 10 more circuits tomorrow to find the lead breaker and why the GFCIs will not reset. Lots of receptacles in multiple living areas and lights on the kitchen counter receptacles. It’s a long process.
     
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  9. jjwestbrook

    jjwestbrook Happy to be here Supporting Member

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    I know but they are also not designed to be used for motors such as what is in that pump.
     
  10. Tim

    Tim I am....an enchanter. Staff Member Benefactor Charter Life Member

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    if I’m planning on selling in the next 6-12 months, should I replace with another GFCI receptacle?
     
  11. Tim

    Tim I am....an enchanter. Staff Member Benefactor Charter Life Member

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    I already owe him a Bojangles, I’ll just send you the check.
     
    Last edited: Jan 3, 2020
  12. Jeppo

    Jeppo Loves Burt Gummer to a fault! Staff Member Benefactor Life Member Supporting Member

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  13. BlackGun

    BlackGun Pimpin Ain’t Easy Supporting Member

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    It’s not the receptacle. It’s moisture. Put the same GFCI back in the day of any home inspection.
     
  14. Tim

    Tim I am....an enchanter. Staff Member Benefactor Charter Life Member

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    huh. This makes sense. The unit is in a closet in a bathroom with showers and laundry.
     
    Last edited: Jan 3, 2020
  15. Jeppo

    Jeppo Loves Burt Gummer to a fault! Staff Member Benefactor Life Member Supporting Member

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    Are GFCI breakers susceptible to moisture too?
     
  16. BlackGun

    BlackGun Pimpin Ain’t Easy Supporting Member

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    Just remember this thread when I get out of line and put the ban hammer back in your holster.
     
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  17. BlackGun

    BlackGun Pimpin Ain’t Easy Supporting Member

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    A short is a short. Water causes a short. To test that theory to see if a GFCI or a breaker disrupts a circuit do this:

    1. Run a tub of water.
    2. Get neck deep in the tub naked.
    3. Turn on a hair dryer.
    4. Place hair dryer under the water close to scrotum.

    Note: First take out $1,000,000 life insurance policy with Ken (me) as the beneficiary.
     
  18. Button Pusher

    Button Pusher Well-Known Member Benefactor Supporting Member

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    Swap the GFCI out with a WR rated one, it may be WR, look for WR on the face.

    gfci.jpg
     
  19. Pack72

    Pack72 Member

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    I had an outlet in the kitchen of the house we just moved out of (after 15 years) that supplied the refrigerator. It was fed from a GFCI outlet, which is a bad idea and is not even required by the NEC. When we bought a new refrigerator the GFCI would trip every time the refrigerator went into its defrost cycle. Luckily I noticed before losing any food. I tried a new GFCI outlet, same result. The refrigerator outlet was the last in a string of three, all fed through the same GFCI, so I had to modify the whole circuit using GFCI outlets where required, pigtailed so that the power to that final outlet didn't pass through any of the previous outlets. It was a PITA, but the refrigerator never shut off again. When we did the inspection before buying our current house, the refrigerator outlet was on my list of "make sure you check this" items.
     
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  20. Schattenreiter

    Schattenreiter Member

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    It has been a long time since I worked in electrical and codes do change but if memory serves me I think a refrigerator is suppose to be on a circuit all by itself. Don't quote me on that.
     
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  21. BlackGun

    BlackGun Pimpin Ain’t Easy Supporting Member

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    It should be on its own dedicated circuit now.

    Long ago before GFCIs were required over the counter top at the sink it was part of many receptacles. At that time Americans had few countertop appliances such as toasters, coffee makers, espresso machines, blenders, microwaves, and can openers. You had an oven for all that and these things called hands and arms.

    Arc fault, GFCI, and tamper proof receptacles have made for some difficult troubleshooting. I can see tamperproof as a requirement because parents now don’t watch their kids while the kids feed the holes with coins and objects.
     
    Last edited: Jan 7, 2020
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  22. Hammer21b

    Hammer21b I'm you're Huckleberry

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    The furnace isn't, the condensation pump is.
     
  23. Hammer21b

    Hammer21b I'm you're Huckleberry

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    Also with all of the rain and moisture we've gotten lately.
     
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  24. concepthomes1

    concepthomes1 When do we start? Staff Member Benefactor Charter Life Member

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    I think @jjwestbrook has enough Bojangles....make it Chick-Fil-A
     
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  25. Tim

    Tim I am....an enchanter. Staff Member Benefactor Charter Life Member

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    let's be honest, @jjwestbrook could use a salad.
     
    Last edited: Jan 7, 2020
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  26. JT

    JT Well-Worn Member Benefactor Life Member Supporting Member

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    Replace the GFCI. If you live by The Code, replace it with a GFCI. If not, an appropriate standard outlet will suffice.
     
    Last edited: Jan 7, 2020
  27. jjwestbrook

    jjwestbrook Happy to be here Supporting Member

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    Look here chocolate is made from cocoa which is a plant so technically a hershey bar is a form of salad