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Topic: ac compressor (Read 239 times) previous topic - next topic

ac compressor

HI,has anybody replaced the ac compressor on their older mh?I have a93 u300 and looks like a sanden model.
Ron & Bette Ringhand previous/1979 33 ft appollo/ 1993 gv u240/ 2003 40ft beaver Marquis/1993 gv u300 40 ft

Re: ac compressor

Reply #1 –
Sorry - can't answer your question.

Our dash air quit working 10 years ago.  It wasn't very efficient when it did work.  It only blew cold air on my knees in the driver seat, and didn't keep the DW sufficiently cool in the passenger seat.  Our little dog, on her bed between the seats, was never cool enough to be happy when we were driving.

SO, I didn't feel it was worthwhile to try to fix it.  We just run the generator and one or two (as required) roof air units going down the road.  That way the whole coach, including the bedroom, is already nicely cooled down when we park for the night.  Works for us!  :thumbsup:
1993 U280 SE 40' WTBI, Build: 4359
C8.3 300hp, 6-Speed, Exhaust Brake
960 watts on the roof (6 x 160)
Sorento (or BOLT) on a Kar Kaddy SS
"Nature abhors a vacuum"

Re: ac compressor

Reply #2 –
I replace the one on the Monaco. The Monaco had dash fans which really helped with the dash AC.
I wanted to put them in my coach but have never found a place to put them. In the winter I would
turn them to face the windshield and they really helped keep them from fogging up.
Peter and Frieda Morin
1999 36ft. U320 Foretravel
Build # 5436
1998 Suzuki Sidekick Sport

Re: ac compressor

Reply #3 –

Very high quality quiet, very long-lasting, low amp draw 12 VDC fans: Amazon.com: HELLA 003361002 12V 2-Speed Turbo Fan, Multi : Automotive

Have run for thousands of hours in our sailboats.

As an Amazon Associate Foretravel Owners' Forum earns from qualifying purchases.
Brett Wolfe
EX: 1993 U240
Moderator, ForeForum 2001-
Moderator Diesel RV Club 2002-
Moderator, FMCA Forum 2009-2020
Chairman FMCA Technical Advisory Committee 2011-2020
 

Re: ac compressor

Reply #4 –
It's been many years but I replaced mine.  It's a Seltec TM-15HS  (same as OEM).
I also converted it from R-12 to R-134 at the time.  I researched the conversion process for best practices.
I changed the compressor and dryer but not any of the lines or expansion valve.  I had to buy a conversion kit too for the correct fittings for R-134.  I disconnected the lines up front and blew them out with alcohol, repeatedly until I was satisfied they were very clean.  Once together I pull a vacuum and made sure it held over days.
The system still works today but I do have to top off the charge annually.
When buying a replacement, you need to make sure the pulleys, mounting, rotation, voltage and fittings, etc. are all the same.
Just for this post, I tried to find my compressor again.  Just searching "TM-15HS" for mine was not enough,  I had to add "12 coil" before I found the right one.
I think this is it:  Genuine Seltec TM-15HS Compressor - Auto Air Online
Your 93 might be different.

P.S.  Here are a few (quite) old posts on the subject:
Picking the right A/C Compressor
1991 GV ORED Need New Dash A/C Compressor
U320 for Dummies
John Fitzgerald
1991 U300 (SAI) Side Aisle Island Bed 40'
Detroit 6V92 with Allison Retarder
Meridian (Boise), Idaho