Is FIDO fail safe?
The FIDO design limits valve open time to realistic maximums to ensure that water loss would be minimized in the event of sensor failure or operation abuse. Further, FIDO incorporates safeguard circuitry to ensure that the valve is shut off in case of a failure occurring to any single electronic or sensor component. However, the propensity of the solenoid valve failing to shut off the diverting water flow, is akin to the likeliness of a washing machine overflowing, resulting in flood damage and potentially hazardous exposure to hot water. While such an occurrence is highly unlikely, the installer and user of the FIDO device must be aware of this possibility and ensure that the installation makes the necessary safety provisions for the possibility of valve failure resulting in a continuous flow of hot water to the water tank. This situation must not result in hazardous exposure to hot water.
