I have my DNS-320 set to email me the log-file when the buffer is full.
Today the log looked like this:
Jul 27 11:13:04 DNAS fan_control: Set Fan Speed To "Stop".
Jul 27 11:29:56 DNAS fan_control: Set Fan Speed To "Low".
Jul 27 11:38:22 DNAS fan_control: Set Fan Speed To "Stop".
Jul 27 11:56:17 DNAS fan_control: Set Fan Speed To "Low".
Jul 27 12:05:46 DNAS fan_control: Set Fan Speed To "Stop".
Jul 27 12:29:06 DNAS fan_control: Set Fan Speed To "Low".
Jul 27 12:39:44 DNAS fan_control: Set Fan Speed To "Stop".
Jul 27 12:59:57 DNAS fan_control: Set Fan Speed To "Low".
Jul 27 13:09:32 DNAS fan_control: Set Fan Speed To "Stop".
Jul 27 13:27:37 DNAS fan_control: Set Fan Speed To "Low".
Jul 27 13:27:40 DNAS fan_control: Fan Is Unable To Spin Or Fan Doesn't Exist.
Jul 27 13:27:40 DNAS fan_control:
Jul 27 13:28:43 DNAS fan_control: Fan Is Unable To Spin Or Fan Doesn't Exist.
Jul 27 13:28:43 DNAS fan_control:
Jul 27 13:29:47 DNAS fan_control: Fan Is Unable To Spin Or Fan Doesn't Exist.
Jul 27 13:29:47 DNAS fan_control:
Jul 27 13:30:51 DNAS fan_control: Fan Is Unable To Spin Or Fan Doesn't Exist.
Jul 27 13:30:51 DNAS fan_control:
Jul 27 13:31:55 DNAS fan_control: Fan Is Unable To Spin Or Fan Doesn't Exist.
Jul 27 13:31:55 DNAS fan_control:
Jul 27 13:32:59 DNAS fan_control: Fan Is Unable To Spin Or Fan Doesn't Exist.
Jul 27 13:32:59 DNAS fan_control:
Jul 27 13:34:03 DNAS fan_control: Fan Is Unable To Spin Or Fan Doesn't Exist.
Jul 27 13:34:03 DNAS fan_control:
Jul 27 13:35:06 DNAS fan_control: Fan Is Unable To Spin Or Fan Doesn't Exist.
Jul 27 13:35:06 DNAS fan_control:
Jul 27 13:36:10 DNAS fan_control: Fan Is Unable To Spin Or Fan Doesn't Exist.
Jul 27 13:36:10 DNAS fan_control:
Jul 27 13:37:22 DNAS fan_control: Fan Is Unable To Spin Or Fan Doesn't Exist.
Jul 27 13:37:22 DNAS fan_control:
Jul 27 13:38:04 DNAS fan_control: Set Fan-Control Mode To "Auto(Off/Low/High)".
Jul 27 13:38:05 DNAS fan_control: Set Fan Speed To "Stop".
Jul 27 13:38:06 DNAS fan_control: Set Fan Speed To "Low".
Jul 27 13:38:08 DNAS fan_control: Fan Is Unable To Spin Or Fan Doesn't Exist.
Jul 27 13:38:08 DNAS fan_control:
Jul 27 13:39:12 DNAS fan_control: Fan Is Unable To Spin Or Fan Doesn't Exist.
I'll have to take it back to the shop and get a warranty repair. I just hope it's not going to fail at this rate in the future.
And if D-Link is reading:
As you can see the fan goes on and off all the time, even if the unit is idle. Last winter when the ambient temperature was lower, the fan was always off when idle.
It's probably due to ambient temperature being higher now, but couldn't the temperature threshold be set a little higher?
Turning on and off all the time might be the reason for the fan to fail so fast.