This may be answered before but I’m having problems searching from my phone.

Now that we hit -1 ambient temperatures I noticed today that I didn’t get my heater fixed.

I thought I had a bubble in the system but was able to get it to go by filling the overflow tank.

If I put it on recirculate I get warm air, but never truly hot hair.

Where should I look for this closed system?

I did have a leak at the coolant bypass last year and may not have gotten all the air out.