P0598
Thermostat heater control - circuit low
P0597
Thermostat heater control - circuit open
P0596
Speed control servo control - circuit high
P0595
Speed control servo control - circuit low
P0594
Speed control servo control - circuit open
P0593
Speed control multi-function input B - circuit high
P0592
Speed control multi-function input B - circuit low
P0591
Speed control multi-function input B - circuit range/perform…
P0590
Speed control multi-function input B - circuit stuck
P0587
Speed control vent control - circuit low