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+--- Thread: [Equipment] PR System One Series 50 Humidifier Problem (/Thread-Equipment-PR-System-One-Series-50-Humidifier-Problem)
PR System One Series 50 Humidifier Problem - willzwing - 05-25-2021
Just got a low-time PR System One Series 50 CPAP from an estate as a travel spare. I've been using a series 60 (with heated tube) for a long time.
The Series 50 humidifier 'hot plate' is not heating up even though the CPAP humidifier setting is set to 'on.' Not sure if there is any diagnosis testing that I can do with a VOM but I don't know what the 4-port plug leads are set up as. Anybody out there with any ideas? Thanks.