Pulse R Fault Codes.

If you see a red light between the two buttons it means that a fault condition is or was present. The Pulse R will continue to operate while a fault condition is present. The fault can be cleared by pressing either button after the fault state is no longer active.

There are 3 different faults that may be displayed:

F01: Output Circuit Error

An F01 error indicates one of three possibilities:

1. An open circuit is detected. Check to ensure that the Pulse R™ is appropriately connected to the valve.
2. A short circuit is detected. Check for any shorts in the system on the output side of the Pulse R™.
3. A valve that is not 24VDC is connected to the Pulse R™.

F02: Major System Fault

An F02 error indicates that the system has detected an issue within the memory or processor. Clear the error and cycle the power. If the issue persists, please contact Unist for a replacement system.

F03: Incoming Voltage out of range

An F03 error indicates that the incoming voltage is outside of the allowable range. The incoming power must be 24VDC +/- 10%.