DG21CS Maytag Dryer

first, I unplug the power supply of the dryer then I removed the two screws at the bottom of the dryer then pulled out the front part of the dryer,unplugged the blue & yellow wire for the on/off switch for the door,at the back of the dryer I unscrew the pannel for the belt,disconect the belt,and I unscrew the four screws on both side of t ... Read more he front pannel to remove the front cover of the drum. Once I removed the front cover of the drum I can now remove the drum itself to access the drum support roller. I unscrew the rollers then replace it with the new once. It was an easy job.
Thank you.

Removed the front cover (screws on bottom 0f face)...removed blower cover....spring pliers to remove and install blower fan. the rest of the time was spent cleaning the inside of the shell as well as the vent. Reassembled and dryer runs better than it has for many years.

If everything else is working ( tumbler and timer ) except for the heating. Your first bet would be checking your flat style igniter. Mine was cracked, something that I wouldnt have seen unless I had taken it off. Because of the crack no current was being passing through, therefore the igniter wasnt heating to its amber color. Since ... Read more there wasnt any current the gas valve was doing its job by not allowing any gas to blow out. Dont worry about turning the gas off just disconnect your elecrical outlet. Remove whole front dryer panel by taking 2 front bottom screws out (philip screw driver). Dont pull to hard because there are two wires connected to the panel and dryer that you will have to disconnect. When you get to the igniter disconnect wire plug and use your socket set to loosen the single srew on the igniter, gently wiggle it out by just handling the white ceramic part of the piece, and replace new one in. Just remember to be careful since the dark part of the igniter that heats up is real brittle.