HPLC 1260 Needle wash not working

Hello babu 
Please let us know if you are still having this issue.

Hi

yes, still i have an issue with needle wash, when i start needle wash, there is a bubble in the tube, so i can see clearly that its not at all moving, i tied to prime with syringe needle but still not at all moving. there was similar problem with other HPLC, there i did the same, its worked. i am not sure about this one. Thanks for your reply

Hi babu 

Thanks for your reply, as Wolney has suggested on the 27th April, please share the Model no of your autosampler and check if the rod at the center of the peristaltic pump is moving. If it is not moving with the peristaltic pump in place, please remove the pump and start needle wash again to see if the rod can move without the pump.

If it moves without the pump in place, you can install the pump back and adjust it gently until you can see the center rod and the pump rollers moving together.

Hi babu 

Thanks for your reply, as Wolney has suggested on the 27th April, please share the Model no of your autosampler and check if the rod at the center of the peristaltic pump is moving. If it is not moving with the peristaltic pump in place, please remove the pump and start needle wash again to see if the rod can move without the pump.

If it moves without the pump in place, you can install the pump back and adjust it gently until you can see the center rod and the pump rollers moving together.