dubsmx13 7 Posted October 8, 2016 Share Posted October 8, 2016 (edited) Hello All, Recently I have been handed an issue with the heater. The problem is that when i turn the vent selector to defrost, the A/C compressor kicks in! Why? IDK! But this is not helpful when i am wanting heat because i get handed cool air. It is only when the switch is turned to defrost only or defrost and feet. Anyone else have this issue??? thanks Edited October 8, 2016 by dubsmx13 Link to post Share on other sites
Retired old Gearhead 201 Posted October 8, 2016 Share Posted October 8, 2016 Most cars have that to remove the moisture. If you want the same effect of the A/C drying out the moisture, but also heat keep that setting but turn the temp knob into the red for more heat while the A/C removes moisture. Link to post Share on other sites
dubsmx13 7 Posted October 9, 2016 Author Share Posted October 9, 2016 Well that may be a good theory but, the knob is already in the max heat setting. The A/C causes completely cold air to come out instead of something warm. I would understand if the a/c came on for a minute and somewhat warm air still came out, but this is not the case. The compressor will run as long as it is in defrost mode and zero heat will come out. Link to post Share on other sites
Retired old Gearhead 201 Posted October 10, 2016 Share Posted October 10, 2016 Should work...check your heat in the normal heat setting only..might be low on coolant...check the tank. Link to post Share on other sites
Mr.tozzi 66 Posted October 13, 2016 Share Posted October 13, 2016 there's something wrong with your system, the compressor kicks in to dry the air, but if you have the button set to hot then it should blow hot. Link to post Share on other sites
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