Change the burner coils
However, it can be a pain in the neck on that model, because the gas valve is located right under the duct that goes up into the back of the drum.
I had to do this about six months ago. It’s very difficult to get the two screws out of the burner valve, but it can be done.
It would not hurt at this age to take the whole dryer apart and lubricate the rear rollers, idler, pulley and possibly change the belt. Also check and make sure the blower is not starting to come loose again from the motor shaft.
Nice thing about this washer and dryers that use most of the same parts the regular Maytag‘s did
We still have a couple hundred customers that have these machines they’re great money making machines because every couple years there’s something wrong with them and they’re usually worth repairing until the damper in the washer. Craps out that’s what usually kills these in our area.
John