no laser

[funhawke]

Just fired up my laser machine and no laser - everything else seems to be fine - according to volt meter on machine tube not getting any juice? Where do I start? Have not used machine for over three weeks but worked fine prior. Checked all door switches...next

[Tech_Marco]

If mA meter has no reading, usually either tube is dead or laser power supply is dead. How about using the test button on the laser power supply? Does it have open circuit protection?

[funhawke]

ordered and installed new power supply - the original was 7 years old and had some issues earlier.

After installing the new power supply - still no fire from tube:( Is there a way to check the tube?

[Tech_Marco]

Check water protection. Make sure that the 'WP' on the laser power supply is grounded or at least a water sensor is hooked up. Sometimes the water sensor may be clogged and caused open circuits.

Marco