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Old 07-20-2018, 09:49 AM   #1
Junior Member
Join Date: Apr 2018
Location: Molalla
Posts: 8
Another Garage AC Post

I have a 2018 Raptor 398TS. The rear AC does not work. I didn't do a very thorough PDI (obviously). I have a single 3-zone T-stat and believe it is on Zone 3, which shows system in cooling mode, but nothing at all in the garage. I haven't opened up the unit yet but am wondering if there is an easy or usual suspect? Many Thanks

Supertommy68 is offline   Reply With Quote
Old 07-20-2018, 11:14 AM   #2
Join Date: Apr 2017
Location: Lanexa
Posts: 99
2 things - are your zones 1 and 2 both running while you try to get zone 3 running ?
if so try turning zone 2 to off / wait about 30 seconds and see if zone 3 starts - you may have a load sharing device. Mine was connected to ac #2 but it may be on AC #1

To verify you can check the number of 20amp circuit breakers marked A/C in the power distribution box. if you have only have 2 you likely have a load sharing relay that switches power between 2 of them with the garage being shut off.


Kevin -n- Lisa
17 Fuzion 325 / 15 Chevy 3500 HC DRW
06 HD Ultra Classic
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Old 07-27-2018, 02:21 PM   #3
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Join Date: Jul 2018
Location: Salem
Posts: 9
Yup that was our thing too. If you have zone 1 and 2 going zone 3 will not run. Most of the Techs at our dealer didn't even know that.
DonnieBlitz is offline   Reply With Quote

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