While the fan is at rest, the lock signal has been detected for 5sec. While the fan is in operation, the lock signal is not detected for 5 sec.
Check & or Replace the fan. Replace the DC controller PCB the exhaust fan can become dirty or locked up. Clean the fan and make sure the fan blades spin freely. In some cases the fan needs to be replaced.
Answers & Comments
While the fan is at rest, the lock signal has been detected for 5sec.
While the fan is in operation, the lock signal is not detected for 5 sec.
Check & or Replace the fan. Replace the DC controller PCB
the exhaust fan can become dirty or locked up. Clean the fan and make sure the fan blades spin freely. In some cases the fan needs to be replaced.