Aqua Hot 450D Problem no heat zone 2 (front)
Allegro Bus 45LP 2014 Aqua hot 450D
Aqua Hot cool air zone 2 (front)
1- All light are green
2- Plastic container at right level of anti-freeze when hot or cold.
3- Tap the check valve
4- Pump is working I can it hear running.
5- Check line zone 1 and zone 2 both hot from the check valve to Pump
6-Check both line after the pump and up pass the aqua hot housing both hot.(Note:Maybe the zone 1 'line is a tiny bit hotter than line 2)
7- Check all the line for king or leak (nothing found)
8- try to push antifreeze thru the system with a manual pump kit It worked but overfill plastic container.
8- Left it run for about one hour
I did # 8 thinking that I have a airlock and also did unscrew the top valve to let air out.
This is where I am not 100% sure how to get rid of an air lock (or pressurize the system). What would be the exact procedure step by step ?
Very discouraged, everything seems to work fine but still no heat zone 2