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 The fault can be cleared by pressing either button after the fault state is no longer active.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 that cannot be resolved. 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%.