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FL When the drain tank switch shuts off the unit (FULL T TTANK ANKANKANK LED flashes). AS When unit disengages the compressor while the condensate pump is discharging water. HP When the high pressure switch disengages the compressor. LO Lowest temperature set point. FILTER Note: If AS does not disappear from display, contact your distributor. 9 Check the following points before calling a qualified technician. SYMPTOM SYMPTOMSYMPTOMSYMPTOM POSSIBLE CAUSE POSSIBLE CAUSEPOSSIBLE CAUSEPOSSIBLE CAUSE