Quote:
Originally Posted by lsmalley
No hot water is getting to the heater core. Heater valve and this ball valve is in place instead of aux water pump. I know for a fact that one or both of these devices are working because I am unable to get heat also. This is why this is such a mystery to me. I know there is no leak, the system was vacuumed and tested for 2 hours (1 hour vacuum , tested for 2 hours) so 3 hours total. I'm taking it to a mechanic tomorrow. Hopefully it's just low on refrigerant. Unless anyone has anymore ideas.
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Odd indeed.
The ball valve is pretty good evidence that the water flow is stopped.
The cold return line is a pretty reliable tell that the freon level is high enough you should be seeing some cool air at the vents.
You may be very close to enough freon but not quite there.
Remember, R134a acts like a step function as you bleed in the freon... nothing, nothing, nothing, then bam, cool air......
Jim