Clean every 2 weeks during heavy use (summer), and monthly during light use. A dirty filter is the most common cause of poor cooling and can increase electricity consumption by up to 15%.
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Set between 24-26°C (75-78°F) for optimal comfort and efficiency. Setting it too low (18-20°C) won't cool faster and wastes electricity. Each degree lower can increase energy use by 6-8%.
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This is a built-in compressor protection feature. The 3-minute delay prevents damage to the compressor from rapid cycling. Never bypass this - it protects your expensive compressor.
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Yes, but carefully. Turn off power first, then gently spray water from inside-out through the fins. Don't use high pressure as it can bend the fins. For heavy dirt or if fins are bent, call a professional.