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You are here: Home / RV University – RV Types, Manufacturers, and much more / RV How To Information and Video / RV Air Conditioner Maintenance – How To Videos

RV Air Conditioner Maintenance – How To Videos

Last updated on June 23rd, 2019 at 09:42 pm


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 RV AC Maintenance – How to find replacements, how to maintain and more

Hard to put these in any kind of order and have this make sense. I’m putting both some advice along with some different types of things you might want to know.

The easiest RV air conditioner buying decision of all

If you need to replace your air conditioner the easiest thing to do might be to just order a drop in replacement, if they are still available.

As near as RV52 can tell, it looks like RV air conditioners are very, very long life items and your chances of finding a replacement, within reason are pretty good.

What is a BTU (British Thermal Unit)

RV air conditioning is specified primarily upon cooling power as specified by the BTU (British thermal unit) specifications. Most models come with 13,500 BTU (often written as 13.5k BTU), but you can get smaller and larger.

If you frequent particularly hot places and like to keep your vehicle cool, look for a model with as high of a BTU specification as you can get. You might get away with smaller models (less BTU), but in my experience, if you have the money, get the most you can get for your money.

If you are replacing your RV air conditioner, think back and decide if you were satisfied with your current air conditioner’s cooling capability. If not, buy bigger!

What kind of cooling technology will your RV air conditioner use?

There are two types of RV air conditioner cooling technologies, along with a BONUS if you pick one (the heat pump type).

RV air conditioner cooling technology: Compressor type

This type of RV air conditioner uses a (warning – high school chemistry term) chemical called a refrigerant which has VERY convenient phase state change (vapor->liquid->vapor) temperature.

The compressor turns the refrigerant to liquid then exposes the liquid to the internal air of the RV (not directly, via tubes and cooling fins). The internal air of the RV then heats the liquid which turns to vapor. This vapor then goes through the compressor and the heat that was absorbed gets pushed to the outside.

RV air conditioner cooling technology: Heat pump

The heat pump really is nearly identical to the air conditioner compressor technology EXCEPT that you can use the heat pump to HEAT the RV air conditioner as well.

Think about it – if you had an air conditioner in the summer you would notice that the air conditioner is blowing very hot air – much hotter than the normal outside air – to the outside. This has to do with the fact that the air conditioner is EXPELLING hot air from the inside of the RV.

However, in the WINTER, you can just reverse this idea and vent the hot air to the the INSIDE of the RV and cool the winter air.

What you are paying more for is the the ability to “reverse” the operation of the RV air conditioner.

Lots of people complain about the cost of a heat pump – but you don’t have to pay for a furnace with a heat pump. It does change your dependency from propane and electric to electric only. I don’t see a bit downside here.

What is a heating strip for an RV air conditioner

The heating strip is really a coil that runs on A/C power and provides 1500 watts or 5600 BTUs of heating power, just like an electrical flooring heating system – you know – a simple space heater. The A/C blower sends air over the element and also out the ducts, giving consistent heat throughout the your Recreational Vehicle.

The heat strip is placed inside the AIR CONDITIONER air electrical outlet box and is mounted just inside the air electrical outlet cover, connecting in the heat strip into a factory-provided receptacle.

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Controlling the RV air conditioner temperature setting

You get two choices for controlling your air conditioner

Ceiling unit temperature adjustment

Choice #1 – a temperature adjustment located on the control panel of the ceiling unit.

Usually this type of ceiling unit will be an UNDUCTED air conditioner and it puts out all the cold air.

You’ll generally see a dial with a hotter colder indication. You’ll turn towards the colder to run the compressor more and hotter to run it less.

Very simple and easy. No wiring. No temperature setpoint though which makes setting the AC a bit of a trial-and-error.

Wall mounted thermostat to control your RV AC

Choice 2: a wall mounted thermostat which is a little bit easier to dial in the exact temperature you want.

More often than not, when you have a thermostat controlling your AC, it is LIKELY a ducted unit which means that it blows cold air into a ducting system.

It is a good idea to know which unit you have just for future reference.

How to know if your RV AC is properly working

When we turned on the main air conditioner one hot day (we have one in the front bedroom, and one in the living area which we would consider the “main” air conditioner) we found that PRACTICALLY speaking, the main air conditioner, while it does put out cold air, could not cool the RV down at any temperature. In other words, if you set the thermostat for 70 degrees, unless the outside air was darned close to 70, it was going to never shut off the main unit.

How RV AC Ducts can affect your RVs temperature

Here is what I learned after absorbing knowledge from our RV repair expert:

  • In many ducted RVs you would find up to two ducts that run lengthwise from the front of the RV to the back of the RV. There are several vents all along the camper that tap into these ducts.
  • The “cutouts” where the AC is installed allow the air conditioning unit to pump air into the ducts are often VERY VERY small… too small.
  • The ducts in the BACK of the unit put out more air than the ones closest to the unit. I thought this odd, but our repair person said that the air flow will often go directly over the mid-RV vents and won’t put out air until a little pressure builds up which is at the end.
  • *The way that many of these air conditioner repair people measure if the units are functionally working properly is to measure the temperature at the vents. They did so on mine and said the temperature was 20 degrees below the room temperature which is considered to be normal/proper operation.

RV Air Conditioner Maintenance Related Pages

The lowly RV Air Conditioner Cover - Cheap Protection for Storage RV AIR CONDITIONER COVER – Cheap Protection for your RV An RV AC cover is a great accessory to have when your RV is in storage. It can prevent birds from getting in your AC. It can reduce insects ability to get into your RV.

If you store your RV in the sunlight, the cover, which is inexpensive, can protect the shroud which is more expensive.

RV Air Conditioner Shroud - What is it and quick tutorial RV AIR CONDITIONER SHROUD – What is it and other considerations RV52 Table of Contents FOR THIS PAGE!!! CLICK to Navigate! What could be my first indications my shroud is failing or has failed?What is an rv air conditioner shroud?What are the causes of RV AC shroud failures?Check for the following information while purchasing an RV air conditioner shroud:Listing of RV AC shrouds12 Search Results for […]
The lowly RV Air Conditioner Cover - Cheap Protection for Storage RV AIR CONDITIONER COVER – Cheap Protection for your RV An RV AC cover is a great accessory to have when your RV is in storage. It can prevent birds from getting in your AC. It can reduce insects ability to get into your RV.

If you store your RV in the sunlight, the cover, which is inexpensive, can protect the shroud which is more expensive.

RV Air Conditioner Shroud - What is it and quick tutorial RV AIR CONDITIONER SHROUD – What is it and other considerations RV52 Table of Contents FOR THIS PAGE!!! CLICK to Navigate! What could be my first indications my shroud is failing or has failed?What is an rv air conditioner shroud?What are the causes of RV AC shroud failures?Check for the following information while purchasing an RV air conditioner shroud:Listing of RV AC shrouds12 Search Results for […]
RV Air Conditioner Parts Troubleshooting Tips RV AIR CONDITIONER PARTS – Troubleshooting Tips to Find the Guilty Part RV52 Table of Contents FOR THIS PAGE!!! CLICK to Navigate! Start Investigating the ProblemsTroubleshooting Tips and List of  RV Air Conditioner parts problems that you can resolve easilyFinding RV Air Conditioner Part and Buying TipsRV Air Conditioner Parts from Amazon: RV air conditioner parts which you use in motorhomes or trailers can work efficiently if […]
RV Air Conditioner and Return Vent Information Page RV Air Conditioner and Return Vent RV52 Table of Contents FOR THIS PAGE!!! CLICK to Navigate! RV Air Conditioner and Return VentDuctwork versus Non-Ducted AC unitsMore Amazon listings for RV Air Conditioner: RV Air Conditioner and Return Vent In another set of articles, Here is an article about the rv air conditioner and how you could locate it on the external part […]

 

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RV air conditioner maintenance products

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