Friday, August 6, 2010

Climate control panel buttons not working?

I have 1999 Honda Accord. Recently, the buttons on the Climate control panel stopped working. The round knobs controlling air flow into the car and the temperature are fine. It is just that I cannot control where air gets directed via those buttons. At the same time, the clock is not illuminated (the clock is fine). Would like to find out if there is a fuse or an electrical component controlling both (control panel and the clock light) has gone bad? if yes, where can I find it?





thanks





rajesh


Climate control panel buttons not working?
Hey Rajesh,





Well sorry that your climate control is not responding the way it should. I know most of us are beginning to realize the need for our heaters and stuff now that it is getting a little colder.





I'm not too sure if the climate controls are tied in with the dash panel illumination Rajesh. They usually aren't, but for the sake of the symptoms, we wont rule it out ok?





Most cars, including yours, have the heater doors and valves that direct the climate controlled airflow to go where the panel directs them is controlled by vacuum. It's designed that way because of expense. Vacuum servo devices are so much cheaper than electric servo motors and in some designs can be more reliable too. The round knobs you have are cable driven while the buttons redirect the vacuum which is created from the engine and stored in a reservoir.


Lots of times what happens is in the engine compartment the hoses get brittle from all the heat. They will then crack and break. this will disable your heater control if the vacuun line to the reservoir is cracked.





If that is not it then yo can check the fuses under the drivers dash by your left legClimate control panel buttons not working?
check fuse #3 drivers side under-dash fuse/relay box.


check fuse #13 pass side under-dash fuse/relay box.


might need to go to a shop as there is a climate control unit, air mix control motor and a mode control motor for this vehicle. there is no vacuum to this unit if it is automatic temp system.



The owners manual will show you where the fuse box is. Under the dash or the hood, usually.


As for climate control, being unable to control the climate in our cars is more proof that we have no control over the global climate.

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