hlg 185h c1400a driver not dimming

I built a cob light last year , the internal dimmer on hlg-185h-c1400a driver isn't working anymore. Just wondering what I should look for into fixing the problem. It was working starting another round of clones was going to turn it down and noticed no difference at any setting with the dimmer. Any ideas?

Thank you in advance.

Hmm , dont know about the internal one's , always bought the b's myself . Get in touch with meanwell and see , if it's only a year old it's still under warranty, get it exchanged for a B model ....

keep the light high for the clones since you cant dimm it raise it up