Copper-Fin ll boiler and water heater

[BuildingMech88]

Hello guys,

For the past 4 days one of our Copper-Fin water heaters continues to go out on a code I cannot find a description for.

The code is - LOCK OUT ADCERR JUMP S 1

Anyone on here familiar with this code and or brand?

[Metalman0880]

Some information would help. Model and serial to serial to start


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[71CHOPS]

Yeah, there are different controls depending on the unit age.

[Cool breeze 38]

whats happening is the supply sensor is raising temp to quickly. cause is slow water flow most likely. or if you have motorized isolation valves not opening enough. which is also creating a low flow situation.

the supply sensor is a dual sensors. S1 and S9. S9 is a 20k and S1 is a 5 k i believe. ( not applicable to this questions, Just good info)

[Cool breeze 38]

did you go to lochinvars website and get the service books? they have everything readily available for pdf downloads.

[coens]

It's a supply water temperature sensor issue. Had one doing the same thing, had to replace sensor. All is well since.