Dash Air Conditioner

[rmmpe]

The dash AC unit on the 1999 36SDS I'm buying does not work. Blower appears fine but it does not produce cold air.

Any hints on what I should be looking for aside from perhaps low charge?

[rmmpe]

The dash AC unit on the 1999 36SDS I'm buying does not work. Blower appears fine but it does not produce cold air.

Any hints on what I should be looking for aside from perhaps low charge?

[Gary M. Smith]

Our 2000 had a couple of dash air system leaks above the generator in the slideout area. Local shop fixed leaks, evacuated and re-filled system. Now works fine. Does your '99 have push A/C "on / off" button on the panel? A couple of times I've thought the dash A/C was not working, only to find I had not pushed the button for A/C. The green light indicator is verrrrry dim.

[rmmpe]

That is a good place to look for leaks after I have it re-charged by the Dealer, if it loses refigerant.

Mine does have the AC on/off button you describe and I'll have to check that.

Thanks for the hints.

[Cedar41]

On our 2004 the fresh air door was welded backwards and would not close so it always had warm air coming into the unit. This was done at the AC Co., not at WRV. It was easy to find once we knew what to look for.

[rmmpe]

Thank you for this.
It gives me another thing to look at in the quest for cool air.

Sooner or later I'll get to the problem and when I do, I'll post the result(s).

[Dave Fernandez]

Hello & Congratulations Bob & Peg:

I would also check the vents for the windshield defroster if cold air is coming out of the vents than it is the vacuum pump which is used on all diesels to move the AC/Heating doors.

[rmmpe]

Thanks Dave.

All advice is good..................
Considering the advice I've gotten, something should work out for the cure.

[Danny Gayhart]

I just left AZ and found out mine isn't working. I have a shop near Bryce Canyon Utah who is going to check the coolant, by the way where are the fittings to service the A/C located?

[Gary Arnold]

The refrigerant access ports are located above the generator. The low side port has a blue cap (located on the right side of the cooling/heating duct). This tubing is connected to the expansion valve. Mine went out this week (stuck closed). I just ordered a replacement yesterday from ACME (the maker of the dash heating and cooling components). The HIGH side port is a black or red cap located on the firewall (right side of generator) on a black tank 2.5"� X 8"� this is the refrigerant filter, dryer, receiver.