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Recommended Low Profile AC System and Control Board w/a Thermostat for a Top Down Installation  

Updated 07/19/2026 | Published 07/07/2026

Question:

Looking at a Ge a/c PLHS13XHHW rv a/c unit. I believe your part number is GE33ZR. This will be going on a 2009 mobile suites. It is a top down mount with no interior access. I was wondering what thermostat and control box would be compatible with this model. Thanks

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Expert Reply:

Hey Nathan, welcome back! To install the GE Appliances HE Low-Profile RV AC w/ Heat Pump item # GE33ZR in a top down orientation, you'll need the following parts:

Single Zone Smart Thermostat for GE Appliances RV ACs item # GE29FR in white or item # GE89FR in black

GE Appliances RV AC Control Board item # GE27FR

We also have the GE Appliances Low-Profile RV AC w/ Heat Pump item # GE93ZR in black or item # GE43ZR in white if you want to upgrade to a 15,000 btu system. These also have the built in heat pumps and will work in a top down orientation.

What kind of climates do you typically camp in?

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expert reply by:
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Jerred H
GE33ZR
GE33ZR
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Nathan C. profile picture

Nathan C.

7/19/2026

The last several years we have seemed to be camping when it’s 90 plus. We usually spend 3-4 weeks a year during the summer. I double checked the unit on the camper and realized it was actually a 15k unit. So I ordered the 15k Dennis with the thermostat and control box you recommended. Thanks again.

Jerred H. profile picture
Etrailer Expert

Jerred H.

7/19/2026

@NathanC You're welcome! That's super toasty. Makes complete sense why you'd be wanting to upgrade. If you have any additional questions, don't hesitate to reach out!

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