Dapat pirme ang about 35 psi low side & 150-200 psi sa high side with compressor running till aabutin ang cabin set temperature. Hindi taas baba, cut-in/cut-out ang compressor. Stand-in pressure dapat nasa 100-110 psi, yan ang pressure both low & high side at least 30mins after AC off. Pag di nakaka abot ang low side the most cause ay bara or defect ang expansion valve or filter.

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