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04-06-2017, 07:57 PM
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#1
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Senior Member
Join Date: Feb 2015
Posts: 718
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Basement air service
I have basement air in my Horizon, I think it works fine but want to have it tested and the Freon recharged if needed. At the same time my Chassis air is weak and should be checked. am I stuck going to a dealer or can any residential heating and cooling outfit service these units?
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Frank, Columbus, Ohio
2001 Itasca Horizon Cat 3126B 330hp, 2018 Jeep GC Limited, EPS harness or 24' Enclosed Car Hauler
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04-06-2017, 11:18 PM
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#2
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Senior Member
Workhorse Chassis Owner
Join Date: Feb 2005
Location: Anderson, IN
Posts: 476
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There is great info about pulling the A/C unit by "Duner". It includes some tips on simple things to do, besides cleaning, while it's out. Do a search and print it out. I have had mine out twice and the last time it was very dirty on the intake side. On some coaches the inlet can be seen under the bed, but mine had to be pulled. It's not difficult,
As far as the freon, if it's working leave it alone. It is a closed system. It can be repaired by adding ports, but only when necessary. The other tip is to use only the cheapest angel hair filters so the air flow is not restricted. Change them often.
Good luck,
Dave
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2004 37B Adventurer, 8.1 WH, Ultrapower, DIY CAI, Henderson Track Bar, Tru Center, Koni FSD's, Roadmaster Even Brake, Scan Guage II, 180 Thermostat,
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04-07-2017, 10:34 PM
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#3
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Senior Member
Join Date: Aug 2001
Location: North America somewhere
Posts: 30,593
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When we bought our MH and I began the process of learning about everything in/on the MH, I replaced the air filter with a Filtrete brand filter for asthmatics (me) and it has worked quite well for the 4 yrs. I have been using these filters.
The first 6 months I had to replaced the filter monthly, as it would coat with dust and dirt. After that 6 months it would not become dirty for 2 months, now the filter requires replacement every 3 months and the coach stays clean inside, no dust on flat surfaces, shades, etc.
Immediately after purchase I discovered it did not cool well. After some online research I learned that this is usually due to leaks in the ductwork behind the rear cap.
Armed with a bright flashlight and mirror, I inspected the entire ductwork from Coleman-Mach unit to where the ductwork disappeared into the MH roof. I found some splits in the corners of the ductwork, sealed leaks with metal duct tape, and it rather quickly began blowing out 45 deg. air at ceiling registers in the front of the MH. From what I learned, this duct leaking not uncommon for basement units.
I also used air conditioner coil cleaner spray detergent on the outside condenser coil, which seemed to improve performance too. Did not find a way to clean evaporator coil without removing the unit from MH and removing the enclosure.
Here are some useful links to our basement unit care:
A/C under coach, not on roof
Replacement compressors for basement units
"Duners" Basement A/C removal procedure, and parts replacing
Duners original thread on this basement unit
Replacing the Coleman-Mach thermostat
Replacement basement unit and thermostat
different model replacement unit
I hope these links are helpful.
__________________
2000 Winnebago Ultimate Freedom USQ40JD , ISC 8.3 Cummins 350, Spartan MM Chassis. USA IN 1SG 11B5MX,Infantry retired;Good Sam Life member,FMCA. " My fellow Americans, ask not what your country can do for you, ask what you can do for your country. John F. Kennedy
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04-08-2017, 05:19 AM
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#4
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Senior Member
Join Date: Feb 2015
Posts: 718
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Thanks Ray that is nice to have those links in one place.
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Frank, Columbus, Ohio
2001 Itasca Horizon Cat 3126B 330hp, 2018 Jeep GC Limited, EPS harness or 24' Enclosed Car Hauler
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04-14-2017, 12:03 PM
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#5
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Junior Member
Join Date: Dec 2005
Posts: 13
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Basement Heat Pump,, Winnebago 2010 Adventurer 35Z, ordered Feb of 2010, took delivery Mar 2010.. The main problem I have is that the OD blower is now (April 14, 2017) being replaced for the second time.. First time froze-up bearing and motor shaft damage,, this time froze-up motor.. 27,100 miles on coach.. It always stays in climate control mode.. I need some suggestions on eliminating this re-occurrence.. GOD-Speed
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04-14-2017, 07:29 PM
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#6
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Senior Member
Join Date: Aug 2001
Location: North America somewhere
Posts: 30,593
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Quote:
Originally Posted by vb98
Basement Heat Pump,, Winnebago 2010 Adventurer 35Z, ordered Feb of 2010, took delivery Mar 2010.. The main problem I have is that the OD blower is now (April 14, 2017) being replaced for the second time.. First time froze-up bearing and motor shaft damage,, this time froze-up motor.. 27,100 miles on coach.. It always stays in climate control mode.. I need some suggestions on eliminating this re-occurrence.. GOD-Speed
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Within one of the links I posted, is a solution. Replace the OEM bushings and pillows that have a grease zerk with permanently-sealed bearings
__________________
2000 Winnebago Ultimate Freedom USQ40JD , ISC 8.3 Cummins 350, Spartan MM Chassis. USA IN 1SG 11B5MX,Infantry retired;Good Sam Life member,FMCA. " My fellow Americans, ask not what your country can do for you, ask what you can do for your country. John F. Kennedy
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