JMarske Report post Posted February 16, 2019 Our dash air only blowes not air. The AC light won't come on at all. We've look for a fuse and can't find one. Any help would be appreciated. Share this post Link to post Share on other sites
dickandlois Report post Posted February 16, 2019 9 minutes ago, JMarske said: Our dash air only blowes not air. The AC light won't come on at all. We've look for a fuse and can't find one. Any help would be appreciated. Need you to post the Make, Model, Year and class of the Coach to narrow things down. Rich. Share this post Link to post Share on other sites
JMarske Report post Posted February 16, 2019 It's an 08 Fleetwood Discovery on a freighteliner chassis Share this post Link to post Share on other sites
hermanmullins Report post Posted February 16, 2019 J Have you checked to see if your compressor clutch engaging? Herman Share this post Link to post Share on other sites
manholt Report post Posted February 16, 2019 All my chassis fuses are located on driver side, 1st bay, that has generator slide out control. We are both Fleetwood. Share this post Link to post Share on other sites
wayne77590 Report post Posted February 16, 2019 My '08 was like that, blowing hot air. Eventually Freightliner ran some dye through it and it had tow fitting leaks. Replaced fittings and ran great after that. Share this post Link to post Share on other sites
jhofeditz Report post Posted February 17, 2019 Run generator and roof air, you will get better fuel mileage Share this post Link to post Share on other sites
wayne77590 Report post Posted February 17, 2019 My generator runs off of diesel fuel. I have not idea how many gallons to the hour. Share this post Link to post Share on other sites
manholt Report post Posted February 17, 2019 Mine is a 10kw. Since I'm all electric, then with roof air on, it's about, .6 gal an hour while driving. We're on generator about 7 hrs. a day! That's in the hottest part of the country in Summer and I also run dash air, so, I guess- to- mate, a gal. an hour, or 45 miles that I loss a day. We will be putting about 8,000+/- miles on coach this Summer, in about 120 days...I'll experiment and let you know! Interesting question, a lot of variables... Share this post Link to post Share on other sites
wayne77590 Report post Posted February 17, 2019 I also have the 10kw. Estimated around .6 or so per hour. MPG is not really something I'm worried about. I get between 7.2 and 7.9 or 8.2 depending on hilly terrain. Funny thing, the 340hp got the same as my newer-to-me 450Hp. Share this post Link to post Share on other sites
hermanmullins Report post Posted February 17, 2019 When we are in the really hot time of the year, we cool with the dash air. We then put up our curtain that goes behind the drivers and passengers seat. Then we turn on the generator and the front A/C and close all but the front vent. That keep us reasonably comfortable, well as comfortable as you you can get driving a fish bowl west in 100% + weather. (I figure it is about 1 gallon per hour running both A/Cs) Herman Share this post Link to post Share on other sites
richard5933 Report post Posted February 18, 2019 Check the manual to see what it means if the light doesn't work. Could indicate no power to the circuit, or it could be like ours and indicate a problem with the refrigerant side. If it's electrical then you can just work through the circuit from breaker/fuse to compressor connections. This is one of those times that I am glad to have the chassis we have. Our OTR a/c will turn the entire interior into a meat locker if run on full. With over 25 lbs of refrigerant it's a beast of a system. Share this post Link to post Share on other sites
manholt Report post Posted February 18, 2019 Your right Richard. Been in Grayhound, Continental, MANN Tour Buses & Prevost. Turn on the OTR and you can hang meat, anywhere. Don't grab a window seat...☃️ Share this post Link to post Share on other sites
