Roper Dryer - Replaced heating coils- worked for a minute

[KelDun09]

My Roper stopped heating. Pulled the back off and tested the thermal fuse and thermostats. All came back positive. Pulled the coils out and 2 were black. Replaced the coils, plugged everything in, plugged the dryer in and turned it on. Blowing hot!!  Awesome. Unplugged the dryer, vacuumed everything out, put it all back together and plugged it back in. Small spark at the outlet. Turned it on and now it's blowing cold. Luke warm now but not hot again. Did that spark do something?  Could this be an electrical issue with 1st blowing the elements and then again after I plugged it back in?  The washer dryer are in a smal laundry shed built specifically for the washer/dryer and they've worked fine for 3 months. Suggestions???

[evaappliance]

Need to add your model number so the guys here can know exactly what style dryer you are working on 

[Vance R]

17 hours ago, KelDun09 said:

Did that spark do something?

+1 for model number

Depending on your dryer the spark when plug unit in means it drew some current, could be nothing or could be some inside is touching and you blew something out. It is possible during your cleaning something came loose or you bumped something causing it to touch the cabinet frame.