Good day, We have a Thermo 1300 A2 cabinet and we have a question about the performance verification LEDS on the front panel of the unit. We are seeing the LED flickering between green and orange ( sometimes red ).
Both inflow and downflow are inrange ( 105 for inflow and 63 for downflow measured with external and calibrated instruments).
The HEPA filter is a bit old but the NSF49 verification was done in april and everything was fine then.
Can you please tell us what could be the issue ? Thank you and regards Reply to DanielL RE: Thermo Scientific - 1300 Series A2