Hi Everyone, New to the forum here. Need a little help with code 170 on my Jandy 1400. I did the Transfirmer Voltage Test (75V, within spec), did all Back Board Test Points (all read within specifications), electrical test on front board (21V), and tested dc voltage at backbaord (0 Volts). The trisensor adaptor green light is not lit. I went through the front booard troubleshooting instructions and all is OK except when I press and hold H-Temp test button and Salintiy test button at same time togrther with Chlorine Production Rate arrow down key. Instead of getting 91F I get JA as a code. Not sure what's wrong. I have the trisensor as suspect but cant rule out front board. Any help would be appreciated.