Troubleshooting The Wshp Open; Led's - Carrier WSHP Open v3 Integration Manual

Troubleshooting the WSHP Open

Troubleshooting the WSHP Open
The WSHP Open controller acts as an intelligent embedded thermostat to the water source heat pump, but can be
monitored and controlled from a third party network.
You must determine which of the following needs troubleshooting:
•
The WSHP Open controller
•
The mechanical systems of the WSHP unit
•
The third party connected network
The WSHP Open controller can troubleshoot itself with Service Test, communicating LED's, and built-in alarms.
See the unit's Controls and Troubleshooting instructions.
Disconnecting the WSHP Open from the unit control inputs can be valuable in determining whether the problem is
related to the unit/equipment, the controller/equipment, or the controller/network. When disconnected from the
unit control inputs, you can use simple 24V signals to activate G, Y1, Y2, W1, W2, etc. to verify proper unit
operation. If the problem occurs without the WSHP Open connected, then you should begin troubleshooting the
unit/equipment rather than the WSHP Open or network.

LED's

The LED's indicate if the controller is speaking to the other devices on the network. The LED's should reflect
communication traffic based on the baud rate set. The higher the baud rate, the more solid the LED's will appear.
The LED's on the WSHP Open show the status of certain functions.
If this LED is on...
Power
Rx
Tx
BO#
NOTE If Tx is not lit, the MS/TP token is not being passed between controllers.
The Run and Error LED's indicate controller and network status.
If Run LED shows...
2 flashes per second
2 flashes per second
2 flashes per second
WSHP Open v3
Integration Guide
Status is...
The WSHP Open has power.
The WSHP Open is receiving data from the network segment
The WSHP Open is transmitting data over the network segment
The binary output is active
And Error LED shows...
Off
2 flashes,
Run
alternating with LED
3 flashes, then off
32
Status is..
Normal
Five minute auto-restart delay after
system error
Controller has just been formatted
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