Sometimes the heater blows hot and other times it blows warm/cool (same with AC)
11-10-2015, 01:50 PM
#1
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Sometimes the heater blows hot and other times it blows warm/cool (same with AC)
I'm quite sure the answer is somewhere on the forums, but after an hour of doing various searches alas I wasn't so lucky. I'm hoping this is something that someone has experienced. I have a 2006 F150 Super Crew with a little less than 120k miles. I'm the only owner and outside of maybe 5 times since I've owned it, no one drives it but me. The last few years it sits more in the driveway, and related (or not) I now have a heater/AC issue. As summer was winding down, my A/C started acting up. A/C would come on ice cold as normal...then after 10-15 mins, it would blow warm air. Playing with the controls would trick it to blow ice cold again...if that didn't work I'd shut it off for 5-10 mins and turn it back on to blow ice cold again. This would last for another 10-15 mins and I'd have to repeat the process again.
Now it's fall and here in the northeast, we've had below freezing temps already. If I turn on the heat full blast, it will come on hot, then after 10-15 mins, would cool down. I have to shut it off and restart it again to get it to blow hot. I've also noticed that if I want warm air, it's either blowing out cold (lowest setting) or hot (until after about 10-15 mins it will blow warm on its own). Lastly, I have noticed that the defroster isn't working well and will begin to steam up the windows. Again, if I shut it off and wait 10-15 mins, restarting corrects the problem, but only temporarily.
Hoping someone recognizes the problem and I can get it fixed.
Thanks in advance!
Now it's fall and here in the northeast, we've had below freezing temps already. If I turn on the heat full blast, it will come on hot, then after 10-15 mins, would cool down. I have to shut it off and restart it again to get it to blow hot. I've also noticed that if I want warm air, it's either blowing out cold (lowest setting) or hot (until after about 10-15 mins it will blow warm on its own). Lastly, I have noticed that the defroster isn't working well and will begin to steam up the windows. Again, if I shut it off and wait 10-15 mins, restarting corrects the problem, but only temporarily.
Hoping someone recognizes the problem and I can get it fixed.
Thanks in advance!
11-10-2015, 03:32 PM
#2
I'm quite sure the answer is somewhere on the forums, but after an hour of doing various searches alas I wasn't so lucky. I'm hoping this is something that someone has experienced. I have a 2006 F150 Super Crew with a little less than 120k miles. I'm the only owner and outside of maybe 5 times since I've owned it, no one drives it but me. The last few years it sits more in the driveway, and related (or not) I now have a heater/AC issue. As summer was winding down, my A/C started acting up. A/C would come on ice cold as normal...then after 10-15 mins, it would blow warm air. Playing with the controls would trick it to blow ice cold again...if that didn't work I'd shut it off for 5-10 mins and turn it back on to blow ice cold again. This would last for another 10-15 mins and I'd have to repeat the process again.
Now it's fall and here in the northeast, we've had below freezing temps already. If I turn on the heat full blast, it will come on hot, then after 10-15 mins, would cool down. I have to shut it off and restart it again to get it to blow hot. I've also noticed that if I want warm air, it's either blowing out cold (lowest setting) or hot (until after about 10-15 mins it will blow warm on its own). Lastly, I have noticed that the defroster isn't working well and will begin to steam up the windows. Again, if I shut it off and wait 10-15 mins, restarting corrects the problem, but only temporarily.
Hoping someone recognizes the problem and I can get it fixed.
Thanks in advance!
Now it's fall and here in the northeast, we've had below freezing temps already. If I turn on the heat full blast, it will come on hot, then after 10-15 mins, would cool down. I have to shut it off and restart it again to get it to blow hot. I've also noticed that if I want warm air, it's either blowing out cold (lowest setting) or hot (until after about 10-15 mins it will blow warm on its own). Lastly, I have noticed that the defroster isn't working well and will begin to steam up the windows. Again, if I shut it off and wait 10-15 mins, restarting corrects the problem, but only temporarily.
Hoping someone recognizes the problem and I can get it fixed.
Thanks in advance!
11-10-2015, 03:40 PM
#3
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heater treater
Ford has had some issues with the blend door actuator. Check out this website for more info. https://heatertreater.net/
11-28-2015, 07:52 PM
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Thank you TommyJ and kuglerjr. I was out of the country traveling for work and just now catching up with emails. @TommyJ, no I don't have an smell when the defrost steams up. No worries, at least I can rule this out. Thanks. @kuglerjr, thanks for the pointer. I have seen some similar things when I initially tried to search the forums before posting...maybe that's the issue.
11-28-2015, 08:47 PM
#5
Blend door issues. If it was a heater core, it wouldn't affect your AC.
