Do you know how to troubleshoot the flow alarm in TEYU S&A handheld laser welding chiller? Our engineers specially made a chiller troubleshooting video To help you better solve this chiller error. Let's take a look now~When the flow alarm activates, switch the machine to self-circulation mode, fill the water to the maximum level, disconnect external water pipes, and temporarily connect inlet and outlet ports with pipes. If the alarm persists, the problem might be with external water circuits. After ensuring self-circulation, potential internal water leaks should be examined. Further steps involve checking the water pump for abnormal shaking, noise, or lack of water movement, with instructions on testing pump voltage using a multimeter. If issues persist, troubleshoot the flow switch or sensor, as well as circuit and temperature controller assessments. If you still can't solve the chiller failure, kindly send an email to service@teyuchiller.com to consult TEYU S&A service team.