Heater blows cold air on 200 Maxima SE

DuhNoid: Posts: 1; Joined: Fri Nov 20, 2009 6:20 pm; Car: 2000 Nissan Maxima SE

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Post by DuhNoid » Fri Nov 20, 2009 6:32 pm

What would cause my heat to blow cold air unless the thermostat is set to high and the fan on full?

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Infinitiguy19: Posts: 7787; Joined: Sat Dec 22, 2007 4:58 pm; Car: 1993 Infiniti Q45 188580 Miles
1994 Infiniti Q45a 240000 Miles

Re: Heater blows cold air on 200 Maxima SE (DuhNoid)

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Post by Infinitiguy19 » Fri Nov 20, 2009 7:37 pm

Many things can cause this fortunately Nissan put a good diagnostic system in all new cars for HVAC problems, See how to troubleshoot it in the service manual: http://Nicoclub.com/FSM

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02 max: Posts: 2; Joined: Thu Nov 26, 2009 9:15 pm; Car: 2000 nissan maxima

Re: Heater blows cold air on 200 Maxima SE (DuhNoid)

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Post by 02 max » Thu Nov 26, 2009 9:28 pm

It could be low coolant, bad thermostat, or plugged heater core thats what I would check.

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