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My 2016 sprinter has a t stat and know when I try to turn on…

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My 2016 sprinter has a...
My 2016 sprinter has a coleman t stat and know when I try to turn on a.c. t stat does count down from 71 to 33 and fans run inside and on roof but no cool air
Submitted: 1 year ago.Category: RV
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Answered in 9 minutes by:
7/31/2017
RV Mechanic: Randall, RVIA Certification replied 1 year ago
Randall
Randall, RVIA Certification
Category: RV
Satisfied Customers: 14,668
Experience: RVDA/RVIA Master Certified Technician with many years experience.
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Hi! My name is ***** ***** I can assist you with this. I may need some additional information from you first in order to give a complete answer.

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RV Mechanic: Randall, RVIA Certification replied 1 year ago

Is the compressor running or not? Or can you tell?

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Customer reply replied 1 year ago
When I get on top fan is turning but doesn't sound like compressor is ru no g
Customer reply replied 1 year ago
Not sure
RV Mechanic: Randall, RVIA Certification replied 1 year ago

You can take the cover off and put your hand on it and see if you feel any vibration and it will be warm when on. Check that and get back to me.

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Customer reply replied 1 year ago
No only fan motor is on
RV Mechanic: Randall, RVIA Certification replied 1 year ago

Do you have a small digital multimeter for some testing? About $20 and easy to use. I can direct you in that. Is this a digital or an analog slide control thermostat?

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Customer reply replied 1 year ago
It's a digital
RV Mechanic: Randall, RVIA Certification replied 1 year ago

Does this have any lettering on the face? Like QC or similar?

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Customer reply replied 1 year ago
Rv comfort.hc colmanmcolmanmach
RV Mechanic: Randall, RVIA Certification replied 1 year ago

Do you have or can you get a 12 VDC test light so we can test that?

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Customer reply replied 1 year ago
I have a multimetrr
RV Mechanic: Randall, RVIA Certification replied 1 year ago

You should be able to pull that off the wall so you can get to the wiring. They make a few models of that so if you can give me the part number off the back it would help. Then I can tell you what to test for.

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RV Mechanic: Randall, RVIA Certification replied 1 year ago

On most of these you want to test between the yellow which is compressor and the blue lead which is ground. If no good voltage on the yellow then thermostat is bad. Let me know what happens.

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Customer reply replied 1 year ago
Rvp# *****
Part # Ar7853
RV Mechanic: Randall, RVIA Certification replied 1 year ago

So test for 12 VDC between the yellow and the blue lead when it is on Hi Cool setting.

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RV Mechanic: Randall, RVIA Certification replied 1 year ago

Don't disconnect them. Just put the probes on the connections.

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Customer reply replied 1 year ago
Ok and if I don't have it
RV Mechanic: Randall, RVIA Certification replied 1 year ago

Don't have the 12 VDC? If that is the case, then the thermostat is bad.

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RV Mechanic: Randall, RVIA Certification replied 1 year ago

They have had quite a few problems with them. Shop around as the price varies. Let me know if you need more later. And please take the time to enter in a Star Rating as that is the only way I get credit from the site for the time spent assisting you on this question. Thanks!

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RV Mechanic: Randall, RVIA Certification replied 1 year ago

Just checking back in to see how this was going and if you were able to resolve this or not?

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