"Kinda" Air Conditioing

[Lauren]

A/C acting up and not sure what it is. Since we have just finished day 3 of some 67 days I will have to do something but are on the move daily right now so looking for any advice I can get in the meantime.

It was not pulling down temps of around 92-94; maybe a few degrees. I kept setting the them lower and lower and then it would run a while and just shut down. Even though it was high 80's in here and I had it set down to as low as 70.And same thing over and over.

That was for two days. Today it was only in the 80's as we are headed north. It has run constantly but the temp coming out seems just kinda cool; certainly not cold enuf to do anything.

I have checked the unit on the roof and it is all clean inside.

Have tried to contact a couple of guys and since probably weekend or whatever they do not even return the calls. And not many choices.

Any and all thoughts would be appreciated. The dog would be most grateful!

Thanks.

[TXiceman]

Duplicate post

[mdcamping]

Sometimes the leaks will be inside the runs on the coils or the coil elbows, exposure & time copper gets pitted/pourous. Sometime the leaks are tough to find. I have pulled out old coils and leak checked with nitigron under water.... seen the leaks coming right out of the bare copper.

Wish the teck put on a $15 tap a line and some charge and you would be good to go for a while at least.

Mike

[TXiceman]

You said "looked at it yesterday". Typically a leak will have a small amount of oil seep out with the refrigerant, so you can see a dirty, oily spot at the leak. But it still needs a proper leak check with a refrigerant leak detector.

Good luck on your trip.

Ken

[Lauren]

Guy that looked at it a yesterday said that, yes, it could be recharged but he said that would most likely be good for just another couple of years. He recommended that the unit be replaced. Now, here is a guy that could have made money doing the re-charging but also knew he would not get the new unit sale - and he said I should get a new unit.

Yes, the filters in here were not bad but I did clean them again.

[TXiceman]

Jan 1, 2020 is the final phase out date for all production of R22. Jan 1 2010 was the date that new equipment could no longer be produced to use R22.

Lauren, a quick and cheap fix would be to put a saddle or clamping valve on a line and charge some R22 into the system. It would get the unit cooling.

How did they determine the unit was leaking? Did they use an electronic refrigerant detector and did the guy know how to use it?

Ken

[sayoung]

Old-Biscuit wrote:

sayoung wrote:

TXiceman wrote:
Nope, the filters are on the inside unit. Living in the RV full time, I find that the filters need cleaning about every 14 days of use.

As for the R22 ban, the production of refrigerant is cut each year and a federal tax is added which drives the price up. There is still R22 available for service of existing equipment. New equipment using R22 was banned. New R22 production is to stop totally in 2020.

So an existing unit can still be recharged with R22. Eventually the supply will dry up.

The new units are R410, R407 or R404. Or what ever new blend has been concocted.

Ken

Ken is spot on.r22 will be here until jan 1,2010.
What I want to know is where is the leak?if repairable the small amount of refrigerant to recharge & labor to repair should be way cheaper than CW installing a new unit.but I make it point to not work on rv units in my service company so don't have a clue to pricing rv AC work.I might be missing a "golden goose"

No valves....closed system.....so would need the valving installed and then recharged. Price just went up with parts/labor to do that job......that's why they are just 'throw away' units.


And yes....filter is inside RV on ceiling grill

The clamping style addon service port is cheeeeeeeap,I however only use the braze-on style in the few instances that we need them.either way you have to add one or there isn't a way to do a thouroh diagnosis(easily) which is why a lot of AC systems get replaced that could have been repaired,IMHO

[Old-Biscuit]

sayoung wrote:

TXiceman wrote:
Nope, the filters are on the inside unit. Living in the RV full time, I find that the filters need cleaning about every 14 days of use.

As for the R22 ban, the production of refrigerant is cut each year and a federal tax is added which drives the price up. There is still R22 available for service of existing equipment. New equipment using R22 was banned. New R22 production is to stop totally in 2020.

So an existing unit can still be recharged with R22. Eventually the supply will dry up.

The new units are R410, R407 or R404. Or what ever new blend has been concocted.

Ken

Ken is spot on.r22 will be here until jan 1,2010.
What I want to know is where is the leak?if repairable the small amount of refrigerant to recharge & labor to repair should be way cheaper than CW installing a new unit.but I make it point to not work on rv units in my service company so don't have a clue to pricing rv AC work.I might be missing a "golden goose"

No valves....closed system.....so would need the valving installed and then recharged. Price just went up with parts/labor to do that job......that's why they are just 'throw away' units.


And yes....filter is inside RV on ceiling grill

[sayoung]

TXiceman wrote:
Nope, the filters are on the inside unit. Living in the RV full time, I find that the filters need cleaning about every 14 days of use.

As for the R22 ban, the production of refrigerant is cut each year and a federal tax is added which drives the price up. There is still R22 available for service of existing equipment. New equipment using R22 was banned. New R22 production is to stop totally in 2020.

So an existing unit can still be recharged with R22. Eventually the supply will dry up.

The new units are R410, R407 or R404. Or what ever new blend has been concocted.

Ken

Ken is spot on.r22 will be here until jan 1,2010.
What I want to know is where is the leak?if repairable the small amount of refrigerant to recharge & labor to repair should be way cheaper than CW installing a new unit.but I make it point to not work on rv units in my service company so don't have a clue to pricing rv AC work.I might be missing a "golden goose"

[TXiceman]

Nope, the filters are on the inside unit. Living in the RV full time, I find that the filters need cleaning about every 14 days of use.

As for the R22 ban, the production of refrigerant is cut each year and a federal tax is added which drives the price up. There is still R22 available for service of existing equipment. New equipment using R22 was banned. New R22 production is to stop totally in 2020.

So an existing unit can still be recharged with R22. Eventually the supply will dry up.

The new units are R410, R407 or R404. Or what ever new blend has been concocted.

Ken

[Lauren]

Incidentally, there are no filters in the topside unit.

[Lauren]

Here's the deal.

Been leaking R22 or whatever so is a dead a/c; or soon to be.

Has be be replaced as the R22 was banned 2 years ago and the 401b (think he said) cannot be used.

So we will continue to OR Coast and the unit in to Camping World when we get home.

Thank God for GS Extended Warranty.....deductable now $150 if worth done at CW.

We will be ok on the trip....... cooling some and we will be north most of the time and also heading into cooler weather in general.

[mdcamping]

TXiceman

All the best to you too

Mike

[Old-Biscuit]

OP........
DID you clean the Evap Coil. The one under the second cover of roof?

[TXiceman]

MD, you are the type technician I never cared to work with and I have spent plenty of time in the field installing and trouble shooting systems.

Adios and good luck in your career.

Ken