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Old 10-19-2011, 05:03 PM   #1
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Carrier 8000ST


Furnance won't start....Check the ignitor, ohm reading still good. Error code indicate 34.

What maybe the problem..?

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Old 10-19-2011, 06:53 PM   #2
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What are the first 5 digits of the model number?
When you reset it and watch the furnace try to start, do you see the ignitor glow?









Ignitors can usually be checked without an ohm meter. What did it read?


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Old 10-20-2011, 09:47 AM   #3
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Hello.
Thanks for relying Houston204...Model: 58TUA080-4...Serial: 2402A72918. The ignitor did not glow at all. I check the ohm..It is still at appr to 60ohm.
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Old 10-20-2011, 12:09 PM   #4
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Hi There.
I also do the components test. The ignitor glow up for a few second. Everything seem working fine. Hmmm don't know what to do next.
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Old 10-20-2011, 06:21 PM   #5
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Your manual

Did you ever see the gas ignite? If so, clean the flame sensor.



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Old 10-20-2011, 09:09 PM   #6
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Yes I did clean the flame sensor..Test the continuity as well. When I turn on the the heat...It just goes through the process..and the led light blinking..that about it..It still work last week.
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Old 10-20-2011, 09:12 PM   #7
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Thanks for post the trouble diagram..
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Old 10-20-2011, 09:48 PM   #8
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Did the gas ever ignite?
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Old 10-20-2011, 10:06 PM   #9
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How do I tell if the gas ever ignite?
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Old 10-21-2011, 12:49 PM   #10
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Houston. Can you send me the troubleshooting flow chart? I have a hard time reading it? Do you have it in pdf file ? Thanks
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Old 10-21-2011, 05:35 PM   #11
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I have already posted a link to the troubleshooting guide. Left click the word manual in post #5. It is on page 10.
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Old 10-22-2011, 01:05 AM   #12
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Thanks you..I will follow these procedure and let you know how it goes.
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Old 10-23-2011, 12:27 AM   #13
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Houston204.
Thanks for helping out..I furnace is working now. all I have to do is reset the DSS switch.
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Old 10-23-2011, 01:54 PM   #14
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http://www.docs.hvacpartners.com/idc...it/58t-6sm.pdf

Any restrictions in the vent pipe?
Did you have to reset this spill switch more than once?

Someone hijacked the manual in post 5.


Last edited by Houston204; 10-23-2011 at 01:57 PM.
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