The invention relates to a device for controlling a condensate lift pump (
9), comprising a means for detecting at least two condensate levels in a container (
20), and a means for activating and for stopping said pump (
9) according to said levels, in which said detection means comprises a capacitive detector (
101) comprising at least three electrodes (GE, RE, EOFF, EON, EA):
- a ground electrode (GE);
- a first level detection electrode (EOFF); and
- a second level detection electrode (EON),
- and a processing means (102) comprising a means for measuring the capacitance (C2, C3) between the electrodes.
According to the invention, the lengths of said first level detection electrode (EOFF) and second level detection electrode (EON) are defined so as to come into contact with said condensates, when the condensates respectively reach said first level and said second level in said container (20); these electrodes are produced on distinct supports not having a submergible physical continuity between them.