ENGINE A/C PROBLEM, NOT ALWAYS COOLING
We have a 2006 Coachmen Aurora Class A motor home with a Ford F53 chassis and a 6.8L V10 engine. We are having intermittent problems with the engine A/C system. We've evacuated the system (3 times),...
Forum Discussion
Class A's are very interesting in many ways. RV upfitter gets a chassis and installs what s/he likes, is available, is least expensive.
Point is, you probably do not have the HVAC system a Ford truck, van, auto would have. Doesn't mean it's bad, but does mean it's all the harder to troubleshoot especially remotely.
If your TXV was replaced, was the new one then wrapped in insulation, called Press Tite Tape? If not, it will sweat condensation. That condensation will frost, then freeze, covering the TXV in ice. Because of its design, the TXV will shut down, no more cooling.
It happened to us, on a "dealer air" system that used a TXV. Would quit cooling on hot humid days. I'd get out and chip the ice off. Then it'd cool again.
Point is, you probably do not have the HVAC system a Ford truck, van, auto would have. Doesn't mean it's bad, but does mean it's all the harder to troubleshoot especially remotely.
If your TXV was replaced, was the new one then wrapped in insulation, called Press Tite Tape? If not, it will sweat condensation. That condensation will frost, then freeze, covering the TXV in ice. Because of its design, the TXV will shut down, no more cooling.
It happened to us, on a "dealer air" system that used a TXV. Would quit cooling on hot humid days. I'd get out and chip the ice off. Then it'd cool again.
