Hello scientists, I need help

I am using an MP-AES 4200, It worked perfectly until we had a power interruption. Ever since it has kept giving errors such as

1. Plasma Failed to ignite. This may be due to a low supply of Argon or Nitrogen, a deteriorated or dirty touch, or a problem with a high Voltage power supply or ignition Mechanism. ( Both Argon and Nitrogen pressure are okay, the touch is cleaned)

2. Plasma ignition not sustained

3. Plasma Gas flow error: Plasma Sheargas pressure low, shear gas pressure too low to allow plasma operation Pressure =187000PaA. LL=188000PaA

Would anyone with experience help me through? I can't wait for my machine to be back on the road.

Thank you in advance.

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