Press home.
Press Help.
Press both My Cycles and Back and hold until service mode comes on.
it will tell you what the problem is.
(Blower not getting up to speed.)
(There is a problem with the inlet thermister.)
(There is a problem with the Heater Box.)
Most likely it is the blower motor.
Test for ~15 ohms between red wires, blue wires, and yellow wires. If ok...
Remove it and open it up. Check the circuit board inside the motor and all of the coils. there is a hall sensor in there. Check the diodes. Make sure you put it back together correctly.
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