Frigidaire FAS156N1A Product Information And Technical Manual page 20

SYMPTON
Evaporator coil partially frosted.
Evaporator completely iced.
No heat.
Fan motor will not rotate during heat cycle.
(Heat/Cool models only.)
POSSIBLE CAUSE
1. System low on refrigerant.
1. Low outside temperature.
1. No power.
2. Selector switch position.
3. Temperature control position.
4. Fan motor.
5. Heating element.
6. Selector switch.
7. Temperature control.
8. Terminals and connectors.
1. Thermostatic drain valve. (Water level control, if
applicable.)
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