Thermo king s 600 HELP no alarm code.

Discussion in 'Refrigerated Trucking Forum' started by hendrix69, Aug 17, 2025.

  1. hendrix69

    hendrix69 Bobtail Member

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    Hi everyone. I set my temperature to -10 2 days ago and still hauling the same load but the unit is still running at high RPM. When its reach to -10 the engine running lower but its going down to 0 quickly and running on high rpm again. It’s not doing defrost even if i push the defrost button there is no any water coming out from the drain hoses. There is no alarm code. Please help me! this unit running on #### high rpm since 2 days
     
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  3. abyliks

    abyliks Road Train Member

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    Is it iced up? Does it say defrost started when pushed? Kinda Sounds like either the 3 way valve or the generator is on its way out and it’s not supplying itself enough power but it’s kind of hard to follow

    could just be hot product, I would get it off loaded and see if it will pull the box back to -10 before reloading
     
  4. hendrix69

    hendrix69 Bobtail Member

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    Jun 4, 2025
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    Yes it’s doing defrost when i push the button and some of parts in the unit getting defrosted but the problem is It does not start defrosting unless I press the button and there is no water coming out from the drain hoses while doing defrosting. So the unit still running on high rpm.
     
  5. wichris

    wichris Road Train Member

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    Shut if off for an 1/2-1 hour, not going to hurt to be off that long, and if it's draining water defrost is bad.
     
  6. hendrix69

    hendrix69 Bobtail Member

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    Jun 4, 2025
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    Ok will do right now and let you know if its draining when its off. And do you think it’s running on high rpm since 3 days because of not doing defrosting properly?
     
  7. abyliks

    abyliks Road Train Member

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    Is it iced up? Where are you? There might not be anything to defrost

    there’s a check valve off the receiver/dryer that I’ve had go bad too

    when does the load deliver?
     
  8. hendrix69

    hendrix69 Bobtail Member

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    Jun 4, 2025
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    I saw that some of parts inside the unit was iced up when i open the unit and i push the defrost button it got defrosted the parts. But no any water coming from the drain hoses and running on high rpm since friday. The product is frozen fries. I turned off the unit 15min ago and waiting to see if draining water. I am in chicago right now and will deliver it tomorrow morning.
     
  9. wichris

    wichris Road Train Member

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    If no water comes out you're not froze up and you have some other problem.
     
  10. hendrix69

    hendrix69 Bobtail Member

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    It's been 50 min since I turned off the unit and there is still no water. I guess i have to turn it on now back again.what kind of problem i have?this unit is 2015 and only have 6k hours on it.
     
  11. hendrix69

    hendrix69 Bobtail Member

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    Btw i just turned on and it got started to defrosting automatically but still no water. IMG_4899.jpeg IMG_4898.jpeg
     
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