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6.3.6 Trimonthly Checking
Check whether condenser is under blockage.
6.3.7 Half-yearly Checking
Check and clean the condenser and evaporator.
Check and clean the filter and expansion valve.
Check system performance.
Clean condenser.
6.3.8 Yearly Checking
Check whether the contactor is normal.
6.3.9 3 year Checking
PC board renewal.
No fuse breaker renewal.
