Your air-mix door motor might not be working properly. It could be stuck and it’s always letting warm air in. If you can find an FSM for the R32 on the net somewhere, it will outline how to test it out. Or at least, it’ll tell you what else might be wrong. Problem with all this is finding an R32 FSM that’s in English.
i’m proboly the only person here with experiance in r32 digital climate controls as i’ve retrofitted them to s13’s before… ethier your motor is stuck or more likely one of the critical sensors has failed and it’s no longer moving the motor. if you feeel like rolling by the brampton area i can take a look at it.