I have a pool/spa combo with a Jandy Aqualink RS6 controller. The freeze protection is set at 38 degrees. When I try to operate the spa in cold weather, it will heat up for a few minutes, then the spa will shut down and go back into pool filter mode. The spa mode is supposed to override the freeze protection, but it doesn't appear to be doing that. Any suggestions?

Pool & Spa - Jandy - Aqualink - Rs24 One Touch Pool / Spa Combination Control...