The ventilator generated technical error codes indicating power errors.According to information provided by our field service engineer, the customer refused to repair a device.The solution to the issue is unknown and it is not possible to know which parts have been found defective.The power errors shall be triggered when - 12 v supply is more than - 10.8 v or when +12 v supply is lower than +10.8 v for more than three seconds.The monitoring subsystem shall activate the signal disable_valves.L.The root cause cannot be determined.H3 other text : 4112.
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