Forum Discussion
dougrainer
Jan 20, 2014Nomad
EMaznio wrote:
I always run my AC on Auto and our thermostat has 4 buttons. We have settings for Cool, Heat Pump and Furnace on the thermostat. I never use the Heat Pump, since I use the AquaHot "Furnace" for all heating. I cleaned the filters, which didn't seem to show much dirt and seems to have taken care of the issue. However, I also haven't run it much since I wrote my last message, since the weather in Key West has been a little cool and lower humidity since then. Heading north to Miami tomorrow and will see if the issue is solved. Thanks everyone for your contributions. Much appreciated!
Your Dometic HP with a 4 button tstat does NOT have a freeze sensor. That means IF the return filters are dirty/clogged(evaporator dirty also), then freeze up is very possible. IF you run on HI/Cool, freeze up is minimized. If you run on Lo/Cool or Auto/cool freeze ups can happen. This is a problem with Ducted AC systems years ago when they installed HP's and did not have a freeze sensor. The replacement 5 button and newer 12 button systems HAD a freeze sensor for the HP models. Doug
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