smartcarofamerica.com/threads/ac-compressor-and-cooling-fan-wont-turn-on-low-temp-limit.153276

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Forum thread: AC Compressor and Cooling Fan won't turn on (low temp limit)

smartcarofamerica.com/threads/ac-compressor-and-cooling-fan-wont-turn-on-low-temp-limit.153276 · p. 1 · Applies to: 451

Source: smartcarofamerica.com Topic: A/C compressor and cooling fan malfunction Models discussed: 451 Language: en Solution status: unclear

Problem: AC compressor and cooling fan won't turn on intermittently when AC switch is pressed on a 2014 Smart ForTwo Pure; problem occurs most of the time but not consistently.

Solution: Possible causes identified: low refrigerant (Freon) level or ambient temperature below 37°F (3.3°C) triggering low temperature limit lockout preventing AC operation.

Key facts: - 2014 Smart ForTwo Pure model - Intermittent failure to activate AC compressor and cooling fan - Fuses 14 and 20 verified as functional - AC functioned one day but failed same day after work - Smart cars have a low temperature threshold (37°F / 3.3°C) below which A/C will not operate - Possible weak connection, relay issue, or refrigerant leak suggested