When your freezer maintains 0°F but the fresh food section warms to 50°F+, cold airflow through the evaporator tower has ceased. In Whirlpool French door and side-by-side units, this is caused either by a frosted evaporator coil (defective calrod heater, bi-metal thermostat, or electronic Jazz board) or a jammed motorized air damper baffle (part #WPW10196395). We enter diagnostic Service Test 6, measure heater resistance, and clear choked channels safely.
- Safe low-pressure thermal steam defrosting of choked evaporator coil channels
- Multimeter resistance testing across defrost calrod heater and bi-metal thermostat
- Testing and replacement of stripped motorized air damper baffle assemblies