I got Philips 100/90 (with relay) installed a few months back from an aftermarket accessory shop. All was well for a couple of months but then I started to experience intermittent low beam failure. When turning on, low bean won't illuminate. A couple of on/off tries with the switch and it comes back on. It goes off randomly after driving around for sometime. Few retries with the switch and it would come back on. No issues with High-beam ever. I had it checked a couple of months back at the shop and the person noticed corrosion on the pins inside the relay (not sure of this relay is stock or was installed along with the light kit). The person cleaned it with alcohol and fixed the plug back and all was well until a month back. The same low beam problem surfaced.
This morning I opened the relay myself. I was surprised to see corroded pins inside the relay and cleaned the pins myself thoroughly. But the problem didn't go away even after cleaning. I never had this issue when I was running stock lights. I'm beginning to think it is probably not in the relay. Any pointers what is causing this issue?