fan always on
#1
fan always on
Hello everyone,
I've megasquirted my N/A miata (come from canada 1990) according to wiki of miataturbo (HR10g code) and modified my board for fan control.
I've used a 2N2222A like described here: datasheet 2N2222A.
My issue is the following: when I switch on my msquirt fan is turning on.
I've modified temperature for
fan on: 78°C
fan off: 75°C
my setup:
I've checked pin of transistor linked to JS0 through a 1K resistor and I always have a 0.5mV. If I have a 0.5mV at Base pin it's logical to have my fan switch on (correct me if I'm wrong!). But I don't understand why I have this voltage since I swith on with my key.
To resume: I don't understand why my fan is always on!!
Thanks for your help!
Romano
I've megasquirted my N/A miata (come from canada 1990) according to wiki of miataturbo (HR10g code) and modified my board for fan control.
I've used a 2N2222A like described here: datasheet 2N2222A.
My issue is the following: when I switch on my msquirt fan is turning on.
I've modified temperature for
fan on: 78°C
fan off: 75°C
my setup:
I've checked pin of transistor linked to JS0 through a 1K resistor and I always have a 0.5mV. If I have a 0.5mV at Base pin it's logical to have my fan switch on (correct me if I'm wrong!). But I don't understand why I have this voltage since I swith on with my key.
To resume: I don't understand why my fan is always on!!
Thanks for your help!
Romano
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