I just bought a 2008 HHR and when I started it today the Heater would not turn on and it worked fine the last time I drove it on the weekend, any suggestions on what is going on with this

 

Exactly what do you mean "would not turn". The knob is stuck?

Have checked the coolant level?

Have you read your Owner Manual? See the link in my sig if you don't have one.

 

the coolant level on the gage looks fine and it was working great on the weekend when I last drove it, I turn on the heater and there is nothing... no sound at all, could it be the fuse??

 

The gauge is not coolant level. It is a coolant temperature gauge, and not a reliable one.

Yes, checking the fuses is a good idea. The owner manual is a good resource to find out which fuses to check.

 

So, you really mean the fan does not run?

 

when I turn the knob nothing happens, no sound and no heat.

 

Check # 10, 16, and 30 fuses on the interior fuse panel on the passenger side of the console, jut pop the door off

 

thank you and we will take a look at those and hope it is just that and will post what we find.

 

You have got use a few more words please.

What knob are you turning? Have you read the Owner Manual regarding using the HVAC system?

Actually it is relay #30 on that fuse box and fuse #3 in the underhood fuse box that controls the fan, if that is what we are talking about.

Here is the relevant part of the Owner Manual, note there are 3 knobs and 4 buttons, please be more specific.

 

I am turning the center knob that turns on the heat, just as I have in the past and how it came on and worked before - but does not now, I have the left dial at the highest heat setting and the right dial on defrost/heat to the floor setting, the middle dial when turned on does nothing now !!
I will check the fuses today and hope that is what the problem is, the manual does not give much info on the heating and problems with that.