Check wall receptacle for 220 volts
Inspect TERMINAL BLOCK (where dryer plug connects to dryer) for loose/burned wiring.
On the left side of the Heater Housing (near the center)---check the continuity of the THERMAL LIMITER (6931EL3003D
)---replace if failed.
If replacing a failed THERMAL LIMITER---also replace the THERMOSTAT (6931EL3001E
) which located on the Heater Housing directly behind the THERMAL LIMITER.
Inspect the entire exhaust vent system---hire a professional vent cleaning company if necessary to assure that the venting is cleaned/cleared.