|
01-29-2022, 02:54 AM
|
#1
|
Senior Member
Brand: Thor Motor Coach
State: Arizona
Posts: 139
THOR #22044
|
Roof ac’s
I have a Thor Hurricane…36’ two ac units on the roof….they are not putting out much cool air…really none…I know u can’t just put Freon in them like u can car AC so I heard they have to be replaced…has anyone ever replaced a roof ac unit…I am pretty sure my warranty will cover them but just in case would love to know ball park amount!
__________________
|
|
|
01-29-2022, 03:04 AM
|
#2
|
Senior Member
Brand: Thor Motor Coach
Model: Citation
State: Texas
Posts: 920
THOR #8139
|
Can you give us more info about the ac units and your MH?
We might help you fix 1 or both.
Changing the units doesn't look hard, YouTube is your friend.
__________________
|
|
|
01-29-2022, 03:16 AM
|
#3
|
Senior Member
Brand: Thor Motor Coach
Model: Miramar
State: California
Posts: 894
THOR #22927
|
How old is your coach?
__________________
|
|
|
01-29-2022, 12:28 PM
|
#4
|
Senior Member
Brand: Thor Motor Coach
Model: Freedom Traveller A27
State: North Carolina
Posts: 2,437
THOR #17765
|
I added a 13,500 Coleman Mach 3. Rooftop unit cost $1200 but can be found on sale for less. You shouldn’t need the plenum and controls. At an independent shop I think install would run around $500.
__________________
|
|
|
01-29-2022, 02:09 PM
|
#5
|
Senior Member
Brand: Thor Motor Coach
Model: 2019 Chateau 28Z
State: Tennessee
Posts: 487
THOR #22388
|
It may be a bad capacitor or something other than freon. Depending on the age, I wouldn't just think replacement. It may be something simple and far less expensive.
Like others said. Would help greatly if you put in your units year, age, and what units are on the roof may even help.
Should go into your signature and enter your RV's spec's there. That way they are saved for future questions.
__________________
2019 Thor Chateau 28Z 2018 E-450 Chassis W/ V10
4 Wheel tow a 2021 Ford Ranger Lariat 4X4 W/ Blue Ox Alpha Tow Bar/Base Plate and Stay-IN-Play DUO Brake system.
|
|
|
01-29-2022, 02:16 PM
|
#6
|
Senior Member
Brand: Still Looking
State: Texas
Posts: 6,187
THOR #2121
|
https://www.thorforums.com/forums/f4...ane-29139.html
A 2017 34J — seems a little too new to need air conditioners replaced already unless it was a bad batch.
__________________
|
|
|
01-29-2022, 02:53 PM
|
#7
|
Senior Member
Brand: Thor Motor Coach
State: Arizona
Posts: 139
THOR #22044
|
Quote:
Originally Posted by CHS
It may be a bad capacitor or something other than freon. Depending on the age, I wouldn't just think replacement. It may be something simple and far less expensive.
Like others said. Would help greatly if you put in your units year, age, and what units are on the roof may even help.
Should go into your signature and enter your RV's spec's there. That way they are saved for future questions.
|
Sorry….2017 they say Coleman Mach on them.
__________________
|
|
|
01-29-2022, 03:08 PM
|
#8
|
Senior Member
Brand: Thor Motor Coach
Model: 2019 Chateau 28Z
State: Tennessee
Posts: 487
THOR #22388
|
Quote:
Originally Posted by inlyzbldcj
Sorry….2017 they say Coleman Mach on them.
|
Then I would have them looked at before buying or thinking of buying new ones.
__________________
|
|
|
01-29-2022, 03:15 PM
|
#9
|
Site Team
Brand: Thor Motor Coach
Model: ACE 27.1
State: Florida
Posts: 14,326
THOR #7035
|
Quote:
Originally Posted by CHS
Then I would have them looked at before buying or thinking of buying new ones.
|
I would think that they would have to be diagnosed by an approved repair facility in order for his ESP to pay for their replacement. But then, wouldn't the ESP pay for the labor as well? So why is he researching DIY replacement?
__________________
Ted & Melinda
2016 ACE 27.1
2016 Chevy Sonic Toad - Selling
2020 Chevy Colorado Z71 Trail Runner Toad
2024 Chevrolet Trax 2RS - Soon 2B TOAD
|
|
|
01-29-2022, 04:41 PM
|
#10
|
Senior Member
Brand: Thor Motor Coach
Model: Citation
State: Texas
Posts: 920
THOR #8139
|
inlyzbldcj are you interested in any very easy DIY projects to maybe get your ACs preforming MUCH better?
PM sent
__________________
|
|
|
01-29-2022, 06:44 PM
|
#11
|
Senior Member
Brand: Thor Motor Coach
Model: Hurricane 35m
State: North Carolina
Posts: 933
THOR #13505
|
Quote:
Originally Posted by inlyzbldcj
I have a Thor Hurricane…36’ two ac units on the roof….they are not putting out much cool air…really none…I know u can’t just put Freon in them like u can car AC so I heard they have to be replaced…has anyone ever replaced a roof ac unit…I am pretty sure my warranty will cover them but just in case would love to know ball park amount!
|
Strange is both went out at same time? What the odds of both losing coolant pressure at same time and will not cool at all.
__________________
Retired Squid who has a Retired Squid that drives him around in a RV!
|
|
|
01-29-2022, 06:45 PM
|
#12
|
Senior Member
Brand: Thor Motor Coach
State: Missouri
Posts: 2,325
THOR #6903
|
Fellow camping besides us last week had very green AC units visible from the ground. Perhaps he might have a bit of an air flow issue.
Good place to start with AC units both inside and exterior
__________________
|
|
|
01-29-2022, 06:52 PM
|
#13
|
Senior Member
Brand: Thor Motor Coach
Model: A.C.E. 27.2
State: Indiana
Posts: 1,874
THOR #14698
|
Both A/C units go bad at the same time? What are the odds?
On our old 2006 Gulfstream the A/C start capacitor went bad. My neighbor is an HVAC tech for the local hospital he changed out the capacitor and added a piercing valve to the low side tubing then added a bit of freon. When he was done you could hang meat in a 10-year-old motorhome.
Most RV repair shops will only remove and replace the A/C as the roof top units on most of today's RVs are a sealed system, but a knowledgeable tech can add a bit of juice to improve performance.
__________________
2018 ACE 27.2
Toad 2019 Jeep Cherokee Trailhawk
Roadmaster Falcon All Terrain Towbar
Roadmaster Invisibrake
|
|
|
01-29-2022, 07:48 PM
|
#14
|
Senior Member
Brand: Thor Motor Coach
Model: Hurricane 31S
State: Texas
Posts: 4,174
THOR #6411
|
You can always check the A/C for function by turning then one on at a time and checking the input air temperature and comparing it to the output temperature. After about 15 minutes of running (with no cycling), the temperature differential should be 20 degrees plus or minus 5 degrees. That will be true if the outside temperature is between 50 and 100 F degrees and regardless of the interior temperature. Be aware there were/are four different refrigerants used in RV roof top A/Cs plus many different replacement refrigerants including ultra pure propane. A/C units should be cleaned and checked once a year; not just cleaning the filters but checking the evaporator and condenser coils. The outside cover should be removed and all the debris removed (mud dauber nest, ext). Any good car A/C shop can evaluate your roof A/Cs operation and add refrigerant if necessary.
__________________
Jim & Roy Davis
2016 Hurricane 31S
1961 Rampside in tow
|
|
|
01-29-2022, 07:54 PM
|
#15
|
Site Team
Brand: Thor Motor Coach
Model: ACE 27.1
State: Florida
Posts: 14,326
THOR #7035
|
Quote:
Originally Posted by Beau388
You can always check the A/C for function by turning then one on at a time and checking the input air temperature and comparing it to the output temperature. After about 15 minutes of running (with no cycling), the temperature differential should be 20 degrees plus or minus 5 degrees. That will be true if the outside temperature is between 50 and 100 F degrees and regardless of the interior temperature. Be aware there were/are four different refrigerants used in RV roof top A/Cs plus many different replacement refrigerants including ultra pure propane. A/C units should be cleaned and checked once a year; not just cleaning the filters but checking the evaporator and condenser coils. The outside cover should be removed and all the debris removed (mud dauber nest, ext). Any good car A/C shop can evaluate your roof A/Cs operation and add refrigerant if necessary.
|
You think auto air shops have piercing Schrader valves and the correct refrigerant? And that they can do anything other than swap parts and do what the Freon machine tells them (which isn't even set up for RV A/Cs)?
Boy, you have a lot of faith!
__________________
Ted & Melinda
2016 ACE 27.1
2016 Chevy Sonic Toad - Selling
2020 Chevy Colorado Z71 Trail Runner Toad
2024 Chevrolet Trax 2RS - Soon 2B TOAD
|
|
|
01-29-2022, 07:59 PM
|
#16
|
Senior Member
Brand: Thor Motor Coach
Model: Freedom Traveller A27
State: North Carolina
Posts: 2,437
THOR #17765
|
“Say Coleman Mach on side”. Filters clean? Plenum blocked? Parked fairly level? Tried one at a time? Coils on top cleaned? Airflow blockages?
Maybe just take it to a dealer and let it sit on the lot for a few months.
__________________
|
|
|
01-29-2022, 09:04 PM
|
#17
|
Senior Member
Brand: Thor Motor Coach
Model: 2018 24.1 AXISSIXxSIX
State: Arizona
Posts: 6,887
THOR #13932
|
Ok,
Im going to say it.
The op didn't give enough information for anyone to think differently:
Did you bump the fan switch and only the fan is coming on?
Is a wire loose at the thermostat?
I see no other way to mitigate both going bad at once.
If I missed where the op said the sound it made, or didn't make, when it kicks on...
Then
Never mind,
Signed,
Emily latella
|
|
|
01-29-2022, 10:24 PM
|
#18
|
Senior Member
Brand: Thor Motor Coach
Model: Hurricane 31S
State: Texas
Posts: 4,174
THOR #6411
|
Quote:
Originally Posted by 16ACE27
You think auto air shops have piercing Schrader valves and the correct refrigerant? And that they can do anything other than swap parts and do what the Freon machine tells them (which isn't even set up for RV A/Cs)?
Boy, you have a lot of faith!
|
No just experience. When I bought my UltraVan, it came with a Colman Polar Pal 9,000 BTU (made from 1964-8) filled with F-12 refrigerant. Since was 30 years old when I perched it, I wanted to keep it as original as possible. Harland Automotive in Murray KY [ https://harlanautomotive.com/] pumped it down replaced the receiver/drier and refilled the unit with reclaimed F-12. The A/C was still working when sold it in 2009. I had Harland install a new Coleman Mach 3PS in 2009 because the old Polar Pal would stall my Generac 400XL in the 100 degree temps.
__________________
Jim & Roy Davis
2016 Hurricane 31S
1961 Rampside in tow
|
|
|
|
Thread Tools |
|
Display Modes |
Linear Mode
|
Posting Rules
|
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts
HTML code is Off
|
|
|
|
|