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Topic: Fan not running in rear A/C 99' U270 (Read 1099 times) previous topic - next topic

Fan not running in rear A/C 99' U270

 Finally got away from homebase after weeks of 12 to 16 hour days in the heat of SoCal, We made it to Vegas! All working well, except for one thing... The rear A/C fan seems to have quit although I can hear the compressor running or trying to run when you put the mode on cool.  Fan of yours to spin freely by hand, so it is not locked up. Looking for suggestions, or prior experiences from my beloved forum. I  Believe that these are the original penguin ACs with heat pumps. They are of course the low-profile units that originally shipped on our 99!.  By the way, it is currently 98° in Vegas at 8:50 PM!
Don
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Don & Tys
1999 U270 3602 WTFE #5402
Xtreme Stage 1 w/Headlight, Step Conversion, etc.
2009 Honda Fit Sport with Navi
Freedom is NOT "just another word for nothing left to lose"... with apologies to Kris Kristofferson

Re: Fan not running in rear A/C 99' U270

Reply #1 –
Do not think 99 270's came with heat pumps. They did have heat strips.  I would replace blower start run capacitor first, if that is not it.        https://www.youtube.com/watch?v=21JfU3nRMCQ
Jim C.
coachfree, previous 1997, 1999, 2000, and 2003 Foretravels.

Re: Fan not running in rear A/C 99' U270

Reply #2 –
Thanks for the reply Jim. I should have said that our coach came with the "optional" heatpumps as sold the the original owner. What I meant though was that these A/C's are the ones that came with our coach. I wish they had heat strips instead of heat pumps! But I didn't realize that the fans had start capacitors. I know the compressors do... anyway, I will investigate that option. Any good A/C parts websites where I can find out what part numbers will work?
Don
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Don & Tys
1999 U270 3602 WTFE #5402
Xtreme Stage 1 w/Headlight, Step Conversion, etc.
2009 Honda Fit Sport with Navi
Freedom is NOT "just another word for nothing left to lose"... with apologies to Kris Kristofferson

Re: Fan not running in rear A/C 99' U270

Reply #3 –
Dometic Air Conditioner Fan Motor - 9.59
These guys have pretty good prices,  I would buy the capacitor first, [less than $20]  if that is not it then you would have to buy the whole motor. Not sure on your unit, but if you can turn it on and spin by hand blower on either evap or condenser side and it starts running then you know it is the capacitor. Happened to me one time and motor came up to speed. I just left it on low all the time till I found a new capacitor. Bear in mind, that if you need a guy to come out and repair it, it is almost always cheaper to just buy an new ac. If you need motor, check tag on motor first, manufacturers sometimes change them even though model is the same.
Heat pump units are just basic ac's with a little bit extra piping and a reversing valve.
Jim C.
coachfree, previous 1997, 1999, 2000, and 2003 Foretravels.

Re: Fan not running in rear A/C 99' U270

Reply #4 –
If you don't want to wait for a capacitor to be delivered, take the capacitor out and take to a local A/C parts supplier.  They should be able to match it. You will fry with only one A/C in vegas during the summer. 
Steve DeLange
2005 U320T 40'
Pearland, Texas

Re: Fan not running in rear A/C 99' U270

Reply #6 –
These guys might have your unit schematic online.            Bryant R.V. Services
Jim C.
coachfree, previous 1997, 1999, 2000, and 2003 Foretravels.

Re: Fan not running in rear A/C 99' U270

Reply #7 –
Don,
Here is the service manual.
John M

http://bryantrv.com/docs2/docs/acservice.pdf
John & Carm Morales

"We travel not to go anywhere, but to just go.  We travel for travel's sake.  Our great desire is to move."

Re: Fan not running in rear A/C 99' U270

Reply #8 –
Thanks Jim, that is a very useful site! No specific schematic for our A/C but the trouble shooting manual that John posted the link to (thanks John!) is useful. It appears that the fan start capacitor can be a combination unit for compressor and fan or it may have two separate capacitors. I will have to take a look and get the part number before I try to find a replacement. It is raining in Vegas at the moment so I will boot this project down the road... Vegas was just a one night waypoint on the way to Canada, so cooler temps ahead!
Don
The selected media item is not currently available.
Don & Tys
1999 U270 3602 WTFE #5402
Xtreme Stage 1 w/Headlight, Step Conversion, etc.
2009 Honda Fit Sport with Navi
Freedom is NOT "just another word for nothing left to lose"... with apologies to Kris Kristofferson

Re: Fan not running in rear A/C 99' U270

Reply #9 –
Gets much nicer north up I15 past st. George weather wise.

We dry camp a lot at the rest areas across from Zion on I15.

You will see them on all-stays on both sides of the freeway

About 10 miles north of Parowan that has a TA truck stop with a $5 dump site
"Riding and rejoicing"
Bob
1997 U320 40' Mid entry, build 5132,  wtbi ce27, 4th owner
2007 Solara convertible
2 prodeco tech outlaw ss electric bikes

1095 watts solar
08 Ls 460 and a sc430
2000 Ford F-250 superduty 4x4

Re: Fan not running in rear A/C 99' U270

Reply #10 –
Don, we had the same experience with our AC, except that it was the front that failed. The fan would't start and I replaced the starting cap, but didn't fix it.
The rear had a vibration and would leak water while running. 
Replaced both ACs with the same type and upgraded the thermostat to the CCC2.

Much better now.
Dick & Sue
'99 U320, 36'
2015 F150 4x4 Supercrew
M & G with brakeaway system
Blue Ox Avail 10,000# tow bar
Grosse Ile, Mi.

Re: Fan not running in rear A/C 99' U270

Reply #11 –
Did you get A/C fixed?  Just curious, if we lost one in Vegas my DW would have said call me at Wynns when it's fixed as she got in cab.
Steve DeLange
2005 U320T 40'
Pearland, Texas

Re: Fan not running in rear A/C 99' U270

Reply #12 –
Quote from: sedelange –
Did you get A/C fixed?  Just curious, if we lost one in Vegas my DW would have said call me at Wynns when it's fixed as she got in cab.
Don now has bigger problems than a warm coach.
Jim C.
coachfree, previous 1997, 1999, 2000, and 2003 Foretravels.

Re: Fan not running in rear A/C 99' U270

Reply #13 –
I am pretty sure it is the capacitor. If I take the grill off and spin it by hand when the A/C is on, the motor starts and runs fine. Just have to find the time and place to pull the cover off and get the part number. Actually not to bad, with one A/C as long as the bed isn't lifted for engine access!
Don
Quote from: sedelange –
Did you get A/C fixed?  Just curious, if we lost one in Vegas my DW would have said call me at Wynns when it's fixed as she got in cab.
The selected media item is not currently available.
Don & Tys
1999 U270 3602 WTFE #5402
Xtreme Stage 1 w/Headlight, Step Conversion, etc.
2009 Honda Fit Sport with Navi
Freedom is NOT "just another word for nothing left to lose"... with apologies to Kris Kristofferson

Re: Fan not running in rear A/C 99' U270

Reply #14 –
I am trying to get a hard start capacitor for the ac from graingers and they want the size.. Anyone have an idea of what I need?

Both AC are original 15k

Re: Fan not running in rear A/C 99' U270

Reply #15 –
David,
You have to get up there and look at it to see what rating ( capacity) capacitor it uses. Then any motor or electrical parts house should have a replacement capacitor. Power off short all the terminals together with a screwdriver to discharge it before you touch it. Read up on changing a capacitor beforehand.
John Duld
1995 U320C SE 40'

Re: Fan not running in rear A/C 99' U270

Reply #16 –
Dometic Duo Therm RV Air Conditioner Hard Start Capacitor
Hard start kits do not replace the cap. you have. They just assist in starting. so they are pretty generic and install in parallel with your existing cap.
Jim C.
coachfree, previous 1997, 1999, 2000, and 2003 Foretravels.
 

Re: Fan not running in rear A/C 99' U270

Reply #17 –
Are you replacing a run capacitor or trying to add a start assist device?what AC make and model do you have?
Tim Fiedler    2025 LTV Unity MBL on Order
2000 Chevy Tracker 2 Door Convertible 4WD Now lifted 4.5"
1985 Citroen 2CV6 Charleston
Murphy Rebel on wheels with 175HP Titan
Cessna P337
1980 48' Westport MY (!/4 Share)