C
Cassandra FosterJul 25, 2025
What to do if the red triangle flashes on my Sundstrom SR 500 Respiratory Product?
- JJose HartJul 25, 2025
If the red triangle flashes on the display and the fan sounds and vibrates on your Sundstrom Respiratory Product, it's likely due to clogged filters. Try changing the pre-filters and particle filters. Also, check the hose to ensure air flows freely and that it's in good condition. Finally, verify that the exhalation valves with membranes are fitted to your head top.