We have an 1100 series HPLC with a quaternary pump that is an upgraded isocratic pump (G1310A) that will not power on. Everything else in the system powers on fine and I have tried moving the pump plug to a different outlet. The system worked great when the pump powered up and I have been using it everyday for about a month. During the past few days, a couple of times I had to press the power button twice for the pump to turn on (the first time the button would go in and the light would not come on, then I would turn it off and back on again and it would light up). Now it won't respond at all. Has anyone else had this happen where something takes a couple of times to power on then won't turn on at all? Trying to see if it is something simple I can fix myself or if we need to get a tech out.
1. There is really no need to power it up and down
2. Most likely it is the switch (outside of fuse; I assume you checked). They do wear; another reason you shouldn't power the systems up and down.
1. There is really no need to power it up and down
2. Most likely it is the switch (outside of fuse; I assume you checked). They do wear; another reason you shouldn't power the systems up and down.
As suggested, the power status light pipe and optional coupler are the most likely items to check (very inexpensive to replace). Otherwise, check the fuses and main power supply output. These are very rugged modules.
I have used and serviced several hundred of the pump modules over the past decades and the few times a power switch or power light status pipe needed to be replaced were usually on abused auction sold items (not protected when moved). Fatigue will cause them to break too.
Dear Michael Swanson ,
In your case there is a fuse that can replace and i think they will be already one spare in the same place.
- After you replace the fuse please check the electrical input using multi-meter if its stable or not (110V, 220V)+- 10V
-Please check the ground Earth =10V maximum
-Finally turn on the device and check the response if still the problem please contact with me we will try to figure solution for you .
Wanted to give an update:
I took off the cover and tried to physically push the light pipe and switch at the power supply to see if the issue could be with the switch or the light pipe just wearing out. It seemed to be clicking properly, just no power. I thought it was probably a power supply issue so I took the old one out. This process was quite a bit of work (I'm pretty sure the assembly line starts with the power supply and builds everything else around it) but it is manageable if you take your time. I opened the power supply up to check the fuses just to make sure they were not blown and they appeared to be okay.
I decided to look for a replacement model. I was first thinking of getting a used power supply off of eBay (~$350-450) but then I called agilent and they offered brand new models for $542 (and could easily be returned if this was not the issue). I also ordered a new front switch and light pipe as I broke our old one trying to remove it. The install was pretty much the reverse of the removal. I will say to spend some time getting the new light pipe in position before you put the power supply back in though.
After putting everything back together, I hit the power button and everything fired up just as before. Problem solved.
Thank you for updating us on your progress. So often we never get any response to these types of questions so it was nice to hear that you got it all sorted out.
This is electrical fault. Look for an electrical electronic engineer that has knowledge of instrumentation. Or the manufacturer.
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