2002 Infiniti Q45 Q&A

2002 Infiniti Q45 Question: heat doesnt work ,fan blows but heat doesnt come out .

i replaced controll head , thermostat ,and flushed cooling system . -
Answer 1
do you mean no air flow or just cold air?? Roy -
Comment 1
just cold air -
Comment 2
check the temp of the inlet and out of the heater core. they should be around 170 in and 150 out. if not, the heater core may be clogged Roy -