Pointbreak2

So, I have a Spider 3 120 and I tried using a distortion pedal with it, the input was this: Guitar - pedal input, pedal output to amp input I tweaked settings of both the pedal and the amp, cables weren't broken and neither was the pedal or its battery/power supply as I used all of them after with a different amp and they worked flawlessly. Any advice to get pedals (not wah/modulation etc) to work with the spider 3 120?