Workhorse W22 Dash Air Conditioning Not Blowing Cold Air Found Bad TXV Valve You can Fix It Yourself

W22 Workhorse Chassis AC Dash Air not blowing cold air found TXV valve was the problem.
Expansion Valve 034-00029 08-00257 = Factory parts #
Murray Climate Control A/C Expansion Valve - 38609
www.oreillyauto.com/detail/c/...
Yellow Jacket 42006 Series 41 Manifold with 3-1/8" Gauge, psi, R-22/134A/404A amzn.to/3XA22t6
You will also need these adapters amzn.to/3PWUcb4

[@tomdewinter9962]

These Workhorse A/C can develop a problem that I’d never seen in automobiles. Apparently because the condenser coil sets so low in the system it can collect oil over time reducing its effectiveness. The cure is to flush the system and recharge. Worked wonders for my A/C. I had replace the compressor due to a bad clutch. The pressures would climb out of sight after the system got hot. Seemed impossible to get the correct amount of Freon. I replaced the thermal expansion valve (much more involved in my Pace Arrow then in Kevin’s MH) and dryer. Symptoms remained unchanged. A friend put me on to the plugged condenser and the cure.

[@ktoutdoor]

Thank you for contributing that's some good info

[@munrys]

Thanks Kevin, now I have the confidence and knowledge to work on my AC system.

[@ktoutdoor]

Stay tuned there is more to come

[@waynestella3576]

Thank you, Kevin. Good stuff, as always. And yes, my W22 needs ac work. It's too hot right now, though.

[@curts3218]

Thanks again for sharing and caring!

[@ktoutdoor]

Thank you for the kind words

[@Medic102b]

My 2004 W22 is having this exact problem. Im so excited to tear into this. You always come trough Kevin. Thanks!

[@ktoutdoor]

Let me know how it goes

[@glennjames9152]

I used this video to help. It ended up being the high pressure switch was bad on mine. Replaced and ice cold air. I had to pull the vacuum and charge. I keep that same o-ring kit in the motorhome. Thanks for the help!

[@jimprice9251]

Is there away to test the high psi switch? can a test be done with multimeter

[@glennjames9152]

@@jimprice9251 Yes. I used this: kzbin.info/www/bejne/oZuvdJifqtWZepo

[@jimprice9251]

@@glennjames9152 thank you sir. I will check it out

[@glocksm40]

Thx Kevin!! Your knowledge is astonishing and I wish I knew as much as you do on my workhorse 😎! Thx for sharing! Scott.

[@ktoutdoor]

Thanks for watching my friend

[@glocksm40]

@ktoutdoor no problem Kevin. I never miss them.

[@johnnisley9715]

Thanks so much Kevin, good information!

[@captojppg]

Another good vid Kevin . You’re playing in my field and well done . Maybe remind viewers that the rx valve will modulate, depending on coil temp and suction temperature. If it’s hot , mine runs 45 wide open but when coil and ambient ( entering) temperature cools, valve will close down to 35 lbs with cold suction line . Could hear that Cardinal looking over your shoulder 😂👍. Good meet n Kissimmee 👍

[@ktoutdoor]

Thank you for contributing my friend.

[@TimNadaud]

Thanks for the video!

[@scottwilson8208]

My dash air is on the fritz. Cools a little but not good enough. This may be just the thing I need to do. Thanks for posting this video!

[@ktoutdoor]

Text me if you need any help my cell phone number is 606-875-0125 Kevin.

[@paulstough2995]

Thanks for the video. Maybe I will get ambitious this summer and see if I can fix the dash AC on my Winnebago.

[@ktoutdoor]

You can always make the scenic drive to Kentucky.

[@oemytech]

Great A/C diags,. But, you need tools. HF is your friend.😊

[@RVLiving5863]

I extremely appreciate all the work you do especially on the W24 as I believe that’s what you also own. So my question is on my 2005 adventure W24 on AC do you have a difference between Max and high as far as your blower goes, it works on both but there’s no change in fan velocity, thanks Craig

[@ktoutdoor]

Correct no change in speed when you go from regular AC that pulls in the air from the outside to Max AC that recirculates the cabin air this will give you better cooling.

[@darrylmotley5134]

Kevin great video. And thanks for all you do. I have purchased a set of gages. My 2004 w22 has a quick connect with a female tread on the low side and just a female thread on the high side. I am wondering if you know the thread size so I can buy an adapter to connect my gages

[@ktoutdoor]

Text me some pictures to my cell phone [phone] Kevin

[@captojppg]

Ps My liquid line drier has a sight glass . After I run for a while , my glass clears indicating a full charge ( liquid) to the TX valve . Tx valves require a solid stream of liquid to work properly. Just like a gas carburetor.

[@ktoutdoor]

Great information.. your making me smarter every day

[@bernienacional]

Great video. I still need to add r-134 in my system since I changed out my compressor. I haven't had time time to buy the vacuum tools to do it correctly. I'm wondering if I could just add r-134 to the system without vacuuming the system. How many bottles does it need to achieve 34psi.

[@ktoutdoor]

No have have to pull a vacuum your system is full of air all ready... the term is called Non-condensables look on plastic case should show you how much, ours takes 32 oz

[@michaelstojanowski6971]

Kevin, I have a 2006 Fleetwood Southwind W22. I'm having a problem w/12v power going to thermostat, all other 12v work. Can't find problem, any ideas? Thanks Michael

[@ktoutdoor]

Call or text me at 606-875-0125 Kevin

[@pmtravels9831]

Where did you find the high side port I never did find the high side port on my W22I use the low side port after putting a new compressor on and filled app check the gauge according to temperature but your pressure was good got cold air walked away

[@ktoutdoor]

High side fitting should be in front of compressor but behind rubber flap thats mounted to firewall.

[@randysolvang9056]

I don't have a TXV. I have an aluminum block expansion valve. Do these perform the same function?

[@ktoutdoor]

Yes they do

[@drenski1]

I've been told by a few mechanics that the manufacturer placed the AC radiator in a poor location on the W22 chassis' which is why my AC is only blowing slightly cool air. How did you diagnosis the TXV valve? I would LOVE to fix this problem.

[@ktoutdoor]

Going by memory I think the high side was to high and the low side to low. Based on its age its a very good possibility that the TXV on yours is also stuck

[@exploringthervlife9759]

Hello. I have a 2004 w22. My a/c needs repair. Do you do repairs for other people?

[@ktoutdoor]

I have a few times but I'm slammed at the moment this video may help you tackle it yourself kzbin.info/www/bejne/fZvHgJqei9Kgbs0si=Tw2Xhl-RNkhTEhqV