
Symptom
Possible cause
Suggested action
communicate with the device.
See the service tool help files
for more information.
The main board is defective
Replace the main board.
Cannot communicate via the
Bluetooth
connection
Various causes
See the device directions for
use for
Bluetooth
troubleshooting information
before replacing modules
within the device.
The main board is defective
Replace the main board.
NIBP
Symptom
Possible cause
Suggested action
The cuff does not inflate, the
device displays inaccurate or no
blood pressure readings, or the
device displays persistent NIBP
errors
An external connection or accessory is faulty Verify all external connections.
Replace NIBP tubing and cuff.
An internal connection is faulty
Verify that the manifold
assembly is properly
connected to the pump,
valves, and transducer.
Verify that the dump valve
cable is securely connected to
J10 on the main board.
Verify that the pump cable is
securely connected to J80 on
the blood pressure board.
There is an air leak in the system, or the air
filter is occluded
Replace the manifold
assembly.
The pump is defective
Replace the pump.
The blood pressure board is defective
Replace the blood pressure
board.
The main board is defective
Replace the main board.
The cuff deflates too slowly
An occlusion in the system is blocking the
valves
Replace the manifold
assembly.
The blood pressure board is defective
Replace the blood pressure
board.
The main board is defective
Replace the main board.
Service Manual
Troubleshooting 25
Summary of Contents for Welch Allyn Connex ProBP 3400
Page 8: ...4 Symbols Welch Allyn Connex ProBP 3400 digital blood pressure device ...
Page 12: ...8 Safety Welch Allyn Connex ProBP 3400 digital blood pressure device ...
Page 20: ...16 Overview Welch Allyn Connex ProBP 3400 digital blood pressure device ...
Page 22: ...18 Controls and indicators Welch Allyn Connex ProBP 3400 digital blood pressure device ...
Page 24: ...20 Connections Welch Allyn Connex ProBP 3400 digital blood pressure device ...
Page 26: ...22 Power up sequence Welch Allyn Connex ProBP 3400 digital blood pressure device ...
Page 42: ...38 Disassembly and repair Welch Allyn Connex ProBP 3400 digital blood pressure device ...
Page 46: ...42 Reassembly Welch Allyn Connex ProBP 3400 digital blood pressure device ...
Page 64: ......