Bullfrog fault log entry codes?

[darin.brown]

had the spa shut off twice in the last 36h and looked through the fault log and saw a pair of fault codes of 19:

both times spa was in Ready Mode, Low Range with a Set Temp of 95. The most recent had an A/B reading of 83 and the previous one had an A/B reading of 75 (this was after a fresh fill of water)

any techs/reps know what that fault code means?

[darin.brown]

got hold of the technical team at BF and they suspect it might be a pump that's overheating. We have been running them longer lately as we're needing to aerate and balance our water so hopefully that point to the problem.