My GC 7890A is showing the "PCM C Flow shutdown" and on investigation I found out that my total flow does not build up.
Please how do I resolve this??
My GC 7890A is showing the "PCM C Flow shutdown" and on investigation I found out that my total flow does not build up.
Please how do I resolve this??
Hi,
I had faced a similar problem two times, and my findings were as below:
1st time: the issue was in the leaking sampling valve, which was malfunctioning, hence the flow was leaking out of it and hence no flow.
2nd time: it was the faulty PCM module itself. I replaced it, and it worked.
Below are my suggestions for troubleshooting:
1. Check if the septa is leaking.
2. Check and observe the actual flows when you switched on the PC; if they are negative, then try to zero the flow from the configuration; if the limit is beyond the range (in more negative), then you may need to replace the PCM assembly.
Please let me know your findings.
Hi,
I had faced a similar problem two times, and my findings were as below:
1st time: the issue was in the leaking sampling valve, which was malfunctioning, hence the flow was leaking out of it and hence no flow.
2nd time: it was the faulty PCM module itself. I replaced it, and it worked.
Below are my suggestions for troubleshooting:
1. Check if the septa is leaking.
2. Check and observe the actual flows when you switched on the PC; if they are negative, then try to zero the flow from the configuration; if the limit is beyond the range (in more negative), then you may need to replace the PCM assembly.
Please let me know your findings.