Question about Dometic Rooftop RV Air Conditioner

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AC won't run on low speed

Have Duo-Therm 59516 and when the fan spped is set to the low setting, the AC won't run nor will the fan.

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It may not be wired for low & high fan mode. If it always did before, then yes there's a problem.

Posted on Jul 19, 2009

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1 Answer

What size ac 59516 331


15,000 BTU. Here's a link for you. http://www.dometic.com/FileOrganizer/1-international/Operation%20&%20Installation%20Manuals/Air%20Conditioners%20-%20Vehicles/Duo-Therm-HP_installation_EN.pdf

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I think you are referring the fan control switch. Normally the fan has to work before the AC will turn on.

So if the ac is working only on higher spped settings, you need to confirm if the fan is actually working at the low settings.

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Have a duo therm ac and the low ac and low fan not work -


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sounds like the motor is either wired incoirrectly and getting 1/2 power all the time or it is going to ground. check out the woiring real good and duse your ohhm meter to check for gounds.

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