The computer that I have WD on runs 24/7 of course. I turned it off last night as it wasn’t doing anything.
Now it won’t turn on! The power light flashes once when I press the power switch but that’s all. It’s never been turned off
for so long before.
So I’ll have to fix the computer before we can continue troubleshooting WD.
After a quick search for “power light flashes once” it seems that more often than not the power supply is dead. Also if you haven’t already Google LED Error Codes/Beep codes for your make/model computer. Often you can gain some insight into what is wrong with your computer.
Doug
Thanks for your reply. It’s an Acer Revo computer that has an external laptop type supply. The supply is ok.
I thought I had a spare Revo but that appears dead - no output on screen.
I’ve ordered another s/h Revo as a temporary measure. I hope I can extract the data from my dead machine. The hd might be ok.
I wonder what is the best computer for the job. It has to be on 24/7 and fairly low power consumption. I’ve had to replace the cpu fan twice in the Revo.
It’s used, apart from running WD, to monitor the o/p of my solar cells and my home power consumption.
Until I get a working computer I’ve loaded a trial copy of WD on my main computer.
I’ve set it up for my VP and COM port number. Checked the speed to be 19200 bd, same as the settings in the VP.
I still can’t connect. The green light, next to the text ‘Data Received 0’ flashes and the light below it is red.
Have I got a duff VP USB interface? My computer recognises it though.
In the next few days I’m going to my summer chalet that has the same setup. I’ll take the interface and try my home interface in my working chalet VP.
Hi
does weatherlink work?
Could it be https://en.wikipedia.org/wiki/Stiction of the harddrive? Depending on the age of the computer/harddrive it might be worth a shot to try tapping on the harddrive while attempting to power up and see if it will over-come the stiction force. I’ve also heard of putting the harddrive in the freezer for a few hours then remove and re-install and try powering up the computer. If either remedy works be prepared to do a total backup of the drive immediately and before powering down.
I’ll try it if I can find the disk 
I don’t think it’s the disk as it doesn’t get as far as the BIOS.
you should be able to download weatherlink I think?
I can only find downloads to update your weatherlink.
I’ve just found the disk but it’s getting late (gone midnight!)
Will try it in the morning.
I have now got the original PC working. It was the external PSU after all. Although it measured 19v off load it must drop on load.
A new PSU fixed it.
So back to square one.
I notice that when I close WD a box pops up to say that the program requires a missing Windows component. (flash.ocx)
Loaded WeatherLink and that seems to run OK.
what shows in WD under view, debug info and under view, program event log,when its started up?
the missing error on close is a windows problem…a search of the forum should show a solution
Program event log is blank.
I noticed that when WD starts up the window opens then immediately closes and opens again.
what window is that exactly?
also which version/build?
also what shows across the top of the WD Program?
what shows under view, debug info?
The main WD window.
Ver 10.37R build 315
Weather display - Ver 10.37R315 - Registered - DAVIS Vantage Pro
‘Loaded all time records
connected OK to com port 7’
is com port 7 the correct com port?
does the data received light flash in WD?
Windows Device Manager under Ports says that the Silicon Labs CP210x USB to UART Bridge is on COM7
The comport is set to 7 under Control Panel, Station Settings, COM/IP Port
The Green light is flashing but next to it it says Data Received 0
Below it the light is red
what is the barometer offset in WD set to and what is the barometer reading showing on the Davis console
also if you set in WD to use the altimeter barometer in the CWOP setup
then try unticking that
then restart WD
We might be getting somewhere. I’ve been trying to get the baro reading the same as the QNH of my local airport.
The box on the left of the Baro offset reads 1021.0. The box to the right of the Set button is empty. The console reads 1015 at the moment.
No boxes ticked in the CWOP setup.
