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The Red Krawler
22-01-2011, 10:02 AM
G'day,

We've got a Daewoo A/C that's recently started turning off intermittently, and begins flashing all 4 LEDs on the evaporator at the same time (fast flashes).

Does anyone know what this may mean?

Suction line has cooling and liquid line is warm, so probably not short of gas. Evaporator and Condenser fans are operating right up until it trips out. Evaporator is not iced up when it trips. Ambient temperatures ~35°C, room temp ~24°C. Can be reset by turning off the power isolator and turning it back on. It resets immediately, so not likely to be a HP or LP pressure control (as theres not enough time for pressures to change much before being reset).

My first thought is a sensor, but 4 lights flashing together is not 'normally' how a sensor fault shows.

Cheers for any help.

trk