In some cases, the battery is fine, but isn’t receiving enough power to properly recharge. Either of these problems can trigger a false alarm, so check this first.Ģ. Make sure the battery terminals aren’t corroded and the wire connections are secure. There are a couple steps you can take to confirm your battery no longer holds a charge before you replace it with a new battery (or with the more reliable Water Commander ™ system).ġ. If the battery has low power levels, this will trigger the alarm. However, if you are using a more expensive maintenance free battery that does not require you to replenish the water (such as this one), you need to fasten the fluid sensor rod between the wingnut and the positive terminal to deactivate the water level alarm (per Basement Watchdog’s FAQ). (This Youtube video explains in more detail.) If it’s placed in the wrong cell, this would trip the alarm even if the fluid levels are correct. For Basement Watchdog systems, this would be the second cell over from the positive terminal.

If you don’t, the alarm will sound once too much water has evaporated.Īlso, make sure the sensor is inserted into the proper cell. If you have a wet-cell battery, the most common type of battery for backup sump pumps, you need to regularly maintain the levels of distilled water in the individual battery cells. Filling battery cells with distilled water

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