How do I troubleshoot my GE dryer?

To troubleshoot your GE dryer that is not heating, not starting, or not drying, follow systematic checks. First, check power and gas: for electric GE dryers like GTD42EASJWW, ensure both breakers at panel not tripped, dryer needs 240 volts, test outlet with multimeter, for gas dryers like GTD65GBMRWS, ensure gas valve behind dryer open and 120-volt outlet working. Second, check lint filter and vent: clean lint screen after each load, disconnect vent hose behind dryer and check for lint clog, go outside and check vent cap not blocked, clogged vent causes overheating and thermal fuse blow. Third, check door: ensure door fully closed and latched, press door switch manually, if switch broken at 15 to 30 dollars, dryer will not start. Fourth, listen and observe: if dryer turns on but drum not turning, belt may be broken at 15 to 30 dollars, if you hear humming but no heat, thermal fuse or heating element may have failed. Fifth, check for error codes: display may show PF for power failure or E01 for control failure. Sixth, perform hard reset: unplug dryer for 10 minutes to clear control board glitches, plug back in. Seventh, test components with multimeter: test thermal fuse on blower housing for continuity, if no continuity, fuse blown at 10 to 25 dollars, test heating element for continuity, test door switch. If not comfortable with multimeter, call technician for diagnosis costing 75 to 150 dollars.