Return call on a GE dryer model DVL223GB1WW. I replaced the gas valve coils due to an intermittent heat problem also replaced drum seals.
Checked vent from dryer to outside, clean and only two foot long.
Customer called they did several loads, then didn't get heat. Dryer would heat on timed dry, but timer didn't advance on cotton setting(more dry-less dry etc. I checked thermostats for continuity. seemed ok.
Not sure what to do next?
Timer is not available til Jan 20 or so.