All my monitor readings have worked correctly previously. At the start of this season, all good except Fresh water tank is showing "opn". My literature is saying that the wiring between the tank sensor and monitor panel is "open". Before I start trying to find a broken wire or connection I have a question. If I do a power diagnostic test on this tank, it reads "P56". Can this indication come up if the circuit is open? I have a bench mark power reading for this tank of P35 from previous readings.
Does the P56 reading mean anything or should I start digging into the wiring?
Does the P56 reading mean anything or should I start digging into the wiring?
