Ask Experts Questions for FREE Help !
Ask
    CAJC1's Avatar
    CAJC1 Posts: 4, Reputation: 1
    New Member
    		  
    #1

    Apr 7, 2009, 03:07 PM
    Thermo couples
    Will a pilot stay lit with a bad thermo couple?
    Joshdta's Avatar
    Joshdta Posts: 2,549, Reputation: 45
    Ultra Member
    		  
    #2

    Apr 7, 2009, 03:08 PM

    No inless the gas valve is bad.
    CAJC1's Avatar
    CAJC1 Posts: 4, Reputation: 1
    New Member
    		  
    #3

    Apr 7, 2009, 03:09 PM

    Will a pilot stay lit with a bad thermo couple?
    Joshdta's Avatar
    Joshdta Posts: 2,549, Reputation: 45
    Ultra Member
    		  
    #4

    Apr 7, 2009, 03:09 PM
    If the gas valve is bad it could keep sending gas to the piolit. The odds of this are not very good.
    CAJC1's Avatar
    CAJC1 Posts: 4, Reputation: 1
    New Member
    		  
    #5

    Apr 7, 2009, 03:13 PM
    How does the thermo couple control the pilot?
    CAJC1's Avatar
    CAJC1 Posts: 4, Reputation: 1
    New Member
    		  
    #6

    Apr 7, 2009, 03:14 PM

    How does the thermo couple control the pilot?
    Joshdta's Avatar
    Joshdta Posts: 2,549, Reputation: 45
    Ultra Member
    		  
    #7

    Apr 7, 2009, 03:37 PM

    When it gets hot a signal is sent to the gas valve to keep the flame on. If it is not hot enough or the t-couple is bad it will go out as soon as you let go of the botton on the gas valve.
    mygirlsdad77's Avatar
    mygirlsdad77 Posts: 5,713, Reputation: 339
    Plumbing Expert
    		  
    #8

    Apr 7, 2009, 04:16 PM

    No a pilot will not stay lit with a bad thermo couple, unless , as Josh stated, you have a faulty gas vavle. One way to test the valve is to unhook the thermocouple at the valve and see if pilot goes out. If it does go out, then the gas valve is good and the thermo couple is doing its job.

    There is one other possability here. If your furnace is very, very old, the thermocouple may not be controlling your pilot, it may be controlling a box that will only shut off the main burners. Please let us know why you are asking this, and if you could post some pictures of your gas valve and pilot setup, it would help.
    Joshdta's Avatar
    Joshdta Posts: 2,549, Reputation: 45
    Ultra Member
    		  
    #9

    Apr 7, 2009, 04:20 PM

    Good call on the baso valve. I never thought to think that far back. Lol More info as to why you are asking will defentally help.
Not your question? Ask your question View similar questions
 

Question Tools Search this Question
Search this Question:

Advanced Search

Add your answer here.


Check out some similar questions!

Thermo couple [ 11 Answers ]

I had a thermo couple replaced in my furnace yesterday and I was charged 132.45. Is this a bit much?

New thermo not working right. [ 4 Answers ]

I have a Janitrol HTP 1860 thermostat now. I recently acquired a Honeywell TH6220D. I hooked it up and all seemed to work fine. I turned the ac on tonight and after about 5 inutes noticed it was blowing hot and the unit outside was not on. Turned it off and waited and did it again, this time I...

Thermo disc [ 1 Answers ]

Hi can any one tell me how to read the temp of a thermo disc here are the numbers on the one I have 36TX11 21608 L190-55F 28P114-1 A0544 THANK YOU

Married couples [ 1 Answers ]

I work for the government and have a married couple In same department, the husband is a supervisor. Is this ethical or legal?

View more questions Search