If you are having problems with your PS300 Series Power Supply you can call us at
If you wish to try and fix the problem yourself, the user manual may be useful, and the following troubleshooting guide may be helpful too.
1) Instrument is unresponsive to front-panel button presses
Try a power-up reset. Turn the power off, then while holding the CLR key down, turn the power back on. After two seconds release the CLR key. If this doesn't correct the problem the instrument will need to come back to SRS for service. Click here to get an RMA number.
2) Installing GPIB in a PS310, PS325 or PS350
Click here to download a detailed instructions on installing GPIB (PS310, PS325 and PS350 only).
If you are still having trouble your PS300, your instrument will need to come back to SRS for service. Click here to get an RMA number.