Vacuum hoses failing on SCS AC systems (Winnie etc)
If your AC isn't blowing as cold as it used to, inspect the plastic hoses in the engine compartment.
The plastic doesn't hold up to underhood temps and breaks down. The walls crumbled on the light blue hose going to the external dashpot on the ac box. The green hose to the water heater hose valve is not far behind. (The condition of these hoses inside in the dash is fine.)
I bought 5' of 1/8" ID fuel/vapor hose and it fit snugly on the good stub of the plastic hose and the dashpot.
Many RV'ers will be paying a lot of money to have a shp fix their AC as these hoses fail, as they did on my 2008 Itasca 30B w/50k miles.
P.S. The ac drain was plugged up too - worth checking this too.
The plastic doesn't hold up to underhood temps and breaks down. The walls crumbled on the light blue hose going to the external dashpot on the ac box. The green hose to the water heater hose valve is not far behind. (The condition of these hoses inside in the dash is fine.)
I bought 5' of 1/8" ID fuel/vapor hose and it fit snugly on the good stub of the plastic hose and the dashpot.
Many RV'ers will be paying a lot of money to have a shp fix their AC as these hoses fail, as they did on my 2008 Itasca 30B w/50k miles.
P.S. The ac drain was plugged up too - worth checking this too.
