The heater doesn't work! Help!!!

Is there a button that says 'Stop' if so make sure that it's not pressed or on.

 

Does the 07 F430 have a stop button near the climate controls? If so try pressing it this should allow the system to activate. I am sure other 430 owners will chime in soon.

Good luck.

 

Bump for you . Got mine a few days ago, but until now didn't realize I haven't tried the heater and A/C yet. Hope they work; will try them both tomorrow.

I'd start by checking the fuse. Good luck man.

 

Press the Off button and you're good to go!

 

Did you adjust it to high heat withbthe off button turned off?

 

Same thing happened to me last month on my 360. Turned out to be the coolant level had dropped due to a minor leak. Got the leak fixed and topped up the coolant and this sorted it out. Nice and hot in the cabin now!

 

Did you start the engine at least for 15 min.? LOL

Seriously, check out the coolant level as stated above, there is a good chance this may your root cause.

 

I have the answer for you buddy; just played with it now, and initially had the 'off' button pressed, and fan worked, but wasn't getting hot air either, which is contrary to what the manual says. But found an easy way to check that your system works, then you can play with it later once you know it operates properly:

Turn BOTH mode and fan knobs to 'AUT' (leftmost position), then press the 'off' button so it's NOT LIGHTED, which means sticking out. Turn the temperature knob to 'lo' and should start blowing cold quicky on the dash vents, as A/C compressor turns on. Turn it to 'hi' and it starts blowing hot quickly too on both dash vents and floor vents. System works fine. But yes, that 'off' button is supposed to be only for the A/C compressor only, but that's NOT the case; what's new, huh? < he he>. I bet your system will be fine.

My only concern is most cars leave the damn compressor on when in auto mode, so will have to check on this car. Hopefully it stays off when not needed. It'd be the first, however. Good luck man. Keep us posted.

 

There is a control module that can go bad if the car isn't used much. Based on an 07 with 2K miles, yours isn't used much. It happened on my 09 Scud. Same exact symptoms. Doesn't matter if button is in or out. The fan works but no heat or A/C. Dealer needs to order a part and repair, not a DIY.

 

This just happened to me two months ago however I have a 360 Spider, not sure if same setup as 430? if not, sorry about this message, anyhow, we had to change a small motor which controls the heater and for sure not a DIY job as located somewhere in the engine bay....as stated, 430 could have a different heating system than 360 but what you describe is the exact same problem I had....once motor (thermostat) was exchanged, worked perfectly. As info, the cost for the part was $ 229.36

 

Just wanted to confirm A/C compressor turns on as soon as the 'off' button is released (not lighted), no matter what the temperature setting (just like any other automatic system I've had). Well, that's supposed to be case as according to the manual, that button is an A/C compressor on/off switch'. But in reality it also affects the system, as with the button in 'off', there's no hot air, as OP stated. The temperature knob seems inoperative with 'off' lighted; weird.

OP, if your system doesn't work properly the way I described it (in full auto mode), then follow the advice of the other 2 fellows. If that was the case, find a buddy with a scanner and check if the ECU threw a code, so you know exactly what to replace. And somebody with a service manual could tell you where the offending component is located. I need to buy it myself. Good luck man.

 

Yep, as the other folks mentioned, you seem to have a problem related to the control valve, and by that I mean the valve itself, or the source of mechanical power (either vacuum or a motor). If you're not mechanically inclined, and have a dealer around, time to take it in. If you want to investigate, and hopefully find something stupid like a bad mechanical connection (actuator disengaged, for instance), or vacuum leak/no-12V (whatever the case might be), you'd need a service manual. Oh, and to rule out a bad thermostat, just check your coolant temperature gauge (should be above 160ºF), in case you didn't check it before. Good luck, and keep us posted what kind of valve mechanism this car has; I want to know.

 

I have found it takes quite a while to get heat and the button is confusing. Instead of using auto, turn the temp up all the way. Drive 20 miles and try it with the button in both positions. I once thought mine wasn't working either.

Dave

 

That's almost unbelievable

 

NOOOOOOOO! It should be 1.5" (40mm, to be exact) below the bottom of the filler neck. It's in the manual man. You need room for expansion.

My coolant reservoir tank was empty when I got the car (don't know why the hell I paid for a PPI < he he>), and I've put half a gallon so far, but you need several heat/cool cycles for the system to 'burp' itself, and get all the air out. I probably had about 2 cups of coolant missing, plus the reservoir. Will check it a 3rd time later on. By the way, a little bit of air shouldn't affect heater performance, but hope I'm wrong .

Just add coolant to 1-1/2" below the neck, and check level every week until it stabilizes. It takes a while. Good luck and keep us posted.

 

My heater isn't working and my fluid is low. I looked through my manuals and don't see a spec for coolant. What kind of coolant should I use in an '06 F430? BTW, the car just came back from its annual service. So much for checking the coolant level and topping it off.