Errors

• - select type -
• Evolution EVS-1000
• Evolution EVS-1500
• Evolution EVS-2000
• Evolution EVS-2000S
• Evolution EVS-2500
• Evolution EVS-3000
• Evolution EVS-500
• Evolution EVS-750

• - select code -
• Comm Failure
• FSG Fault
• Fuel Limit
• High Temp Limit
• Inlet Temp Fail
• Low Air Flow
• Low Inlet Temp
• Low Water Flow
• Low Water Level
• Memory Failure
• OA Temp Fail
• Off Switch
• Outlet Temp Fail
• Remote Input Fail
• Remote Temp Fail

Boiler type Evolution EVS-1500

Error code Off Switch

Cause:

Burner Switch is Off Control switch is in the OFF position and is preventing the boiler from starting. If terminal (OO) does not receive power and the Call For Heat output (CH) is powered the “OFF Switch” Message is displayed

Solution:

Turn Burner Switch On