Purpose and Applicable Part/Model Numbers
This Document addresses out of range sensors for the H2 Zero system.
016-551-10 H2 Zero, Main Unit
- 016-552-10 H2 Zero, Remote Hydrogen/Temperature Sensor
016-553-10 H2 Zero, Control Module
The only way that a minor alarm will trigger on an H2 Zero with firmware r04 is if a hydrogen sensor is out of range. If you are seeing question marks on the main controller while the unit is in a minor alarm, then this issue is casued by an out of range Hydrogen sensor.
Keep in mind that when using firmware r05, any hydrogen detection will cause a minor alarm.
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