Cool Cat AC/Heat pump, not cooling
I have a Cool Cat installed under the rear bed in my unit. It is now 14 years old. I found this week that it is not cooling. Fan runs, AC kicks on but is not cold. Is this unit rechargeable? I ha...
Forum Discussion
I have one of the Cool Cat units in my 2010 Roadtrek and it sometimes doesn't cool either. The unit kicks in and blows air but it's just hot air. I did a lot of playing around and think I found the issue and a simple work-around. In my case it always seems to happen when I turn the unit on in cool mode and lower the thermostat just enough to cause the A/C to kick on. What I've found is that I need to run the thermostat all the way down to get the A/C to start blowing cold air. After that I can set the thermostat at any point I'd like and the A/C properly comes on an off as I'd expect producing cold air.
I thought it might be the thermostat and tried replacing it which wasn't easy given the model in my Roadtrek is no longer in production. But that didn't solve the problem. My best guess is that there's probably a signal (voltage or resistance) coming from the thermostat that signals the Cool Cat to switch the reversing valve into the cool position and that signal isn't strong enough when the set point temp is close to ambient temp. By running the thermostat all the way down to lowest setting the difference between set point temp and ambient is maxed out, the signal is strong and the Cool Cat switches the reversing valve.
I thought it might be the thermostat and tried replacing it which wasn't easy given the model in my Roadtrek is no longer in production. But that didn't solve the problem. My best guess is that there's probably a signal (voltage or resistance) coming from the thermostat that signals the Cool Cat to switch the reversing valve into the cool position and that signal isn't strong enough when the set point temp is close to ambient temp. By running the thermostat all the way down to lowest setting the difference between set point temp and ambient is maxed out, the signal is strong and the Cool Cat switches the reversing valve.
