next up previous contents
Next: Unbalanced Mixture Up: Trouble Near Base Previous: Heat Leak   Contents

Clogged Impedance

Less common problem is when ice, dust or other particulates make their way to the impedance and get stuck. This manifests itself as a higher base temperature, lower cooling power, and lower throughput.

In the case of ice, this is indicative of contaminants in the line, and can be confirmed by warming up, collecting the mixture and comparing the pressure in the dumps to what's expected.

In the case of dust and particulates clogging the impedance, the best solution is to replace the impedance (see [sec:maint.impedance]§sec:maint.impedance).

Jonathan Ouellet 2014-08-26