RamairExplorerJan 17, 2016Need some help with Black Tank SensorsThis is not the standard issue with the sensors reading full all the time. In 2013 replaced our black tank sensors with the Horst Miracle Probes and they have been working great always accurate, This ...Show More
RamairExplorerJan 17, 2016Yes check the ground because the 1/3 tank lights up, just the 2/3 and full won't light up.
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