IS - 1st Gen (2001-2005) Discussion about the IS models up to the 2005 model

heater not working in my is300 .. help

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Old 01-05-12, 09:06 PM
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k954triniz
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Default heater not working in my is300 .. help

so its cold out now and i want to use my heater .. but its not working ...
a/c blows cold tho ..
i put it on blow warm or atleast trys to .. and them get cold ...
wut cud be wrong ... and is there a quick fix
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lexmarc33 (11-12-18)
Old 01-06-12, 05:01 PM
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el3men2dr
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i believe theres a fuse for the heater
Old 01-06-12, 05:41 PM
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joshmannin
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mine would NOT blow cold when it was below 40 degrees
but today was a little warmer at like 67 during the day and chilly 50 at night and it blew warmish tonight

he said a/c didnt work, and it worked perfect today when it was warm in traffic but didnt really work when it was cold, it blew colder when it was hot outside??

lol, but my heat does the same, lmk what you find out
i was cold last night on the way back from getting it
Old 01-06-12, 08:27 PM
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llllllllll
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Oh crap, something similar happened to me a couple days ago....

The heat usually blows way too hot and I have to turn it down becasue it burns my eyes.
But a couple days ago it was really cold and I wanted some heat in my life but it only blew out a cool heat.
I had it cranked up all the way to the hottest hot and nothing....

Then today when I drove to work without the heat on, there was hot/warm air coming out of the vents, about equally hot if not hotter than the other day... I didn't even bother trying to turn the heat on today though, because it was warm enough with the heat off.... Weird...?
Old 01-07-12, 09:15 AM
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k954triniz
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A a/c guy I no told me it might a doors that regulate the temp in these car might be loose or blocked etc but to get to it I have to pull down the WHOLE damn dash ...or it might be the heater coils or there is a sensor in the heater line in from the engine that might also be bad ... I sure hope it's the cheapest easiest one lmao .....

One more thing ... He also say it might be because we live in south Florida and we don't use heater except for like 3 weeks out the month and that not using can make it give trouble so it's good to put it on for a few minute a month or even bi weekly
Old 01-07-12, 09:16 AM
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k954triniz
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It seems to only happen in cold weather .. I really think its that sensor the a/c guy was talked about
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