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Jenna GutierrezSep 9, 2025
How to fix no control panel lights on DeVilbiss Health Care Products?
- AAdam FinleySep 10, 2025
If there are no control panel lights or audible alarm when your DeVilbiss Health Care Products unit is first plugged in, check the following: 1. A tripped circuit breaker or faulty breaker in 535D or a blown fuse in 535I: Reset or replace the circuit breaker, or replace the fuse. 2. No AC power at the receptacle: Check the power source or try a different receptacle. 3. The AC wire harness is not connected to the main PC board: Connect the AC wire harness. 4. The light panel ribbon cable is loose or not connected to the main PC board: Reconnect the ribbon cable to the main PC board. 5. A defective DC power supply board: Replace the DC power supply board. 6. A defective light panel: Replace the light panel. 7. A defective main PC board: Replace the main PC board.
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