Friday night I came home to find my tank temperature at 72, down from 78. My RKL head was indicating "iTemp error". My fan and chiller were stuck on. I think it was the fan that drove down the temperature. Fortunately I had my chiller set to 77 to preventing a complete catastrophe.
I had purchased 2 RKL basic units. I set up only 1 of the head units using only the PC4 from the second RKL basic. This gives me 8 controllable sockets on 1 head unit. Fortunately I had the second temp probe and head unit as backups. Swapping the temp probe did not fix the problem. It was fixed when I swapped out the head unit.
Fortunately everything in my tank survived including my clam, shrimp, coral and fish. Overnight a clown that must have been stressed jumped out but fortunately landed in the return section of my Solana.
I've read a lot of posts about heater failure mishaps and the importance of NOT depending the heater's thermostat. I think redundancy is key. Use your controller for primary control but also use the thermostat for backup.
My chiller is controlled by my RKL. If I had the chiller set to 60 my tank would have froze. Instead I had the chiller set to just slightly under the desired temperature so when the RKL failed, the chiller's thermostat provided a safeguard.
My heater is also set at just slightly above the RKL "ON" temperature in case the RKL fails with the heater turned on.
I had purchased 2 RKL basic units. I set up only 1 of the head units using only the PC4 from the second RKL basic. This gives me 8 controllable sockets on 1 head unit. Fortunately I had the second temp probe and head unit as backups. Swapping the temp probe did not fix the problem. It was fixed when I swapped out the head unit.
Fortunately everything in my tank survived including my clam, shrimp, coral and fish. Overnight a clown that must have been stressed jumped out but fortunately landed in the return section of my Solana.
I've read a lot of posts about heater failure mishaps and the importance of NOT depending the heater's thermostat. I think redundancy is key. Use your controller for primary control but also use the thermostat for backup.
My chiller is controlled by my RKL. If I had the chiller set to 60 my tank would have froze. Instead I had the chiller set to just slightly under the desired temperature so when the RKL failed, the chiller's thermostat provided a safeguard.
My heater is also set at just slightly above the RKL "ON" temperature in case the RKL fails with the heater turned on.
