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Blower not keeping dust out of operator enclosure
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Defective seal around filter
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Check seal condition
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Check filter for correct installation
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Defective filter
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Replace filter
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Excessive air leak
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Seal air leaks
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Blower air flow too low
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See Blower Air Flow Too Low
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Blower air flow too low
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Clogged filter or air intake screen
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Clean
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Heater core or evaporator core clogged
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Clean
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Heater will not shut off
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Heater hoses connected incorrectly
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See your John Deere Dealer
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Air conditioner not cooling
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Low voltage
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Check charging circuit. (See Checking Air Conditioning System in the General Maintenance and Inspection Section)
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Low refrigerant
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Check sight glass. (See Checking Air Conditioning System in the General Maintenance and Inspection Section
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Belt slipping
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Check belt tension
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Heater switched on
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Switch heater off
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Compressor stuck
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Rock compressor pulley back and forth
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Intermittent cooling
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Air restriction
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Clean side screens, radiator and oil cooler condenser. (See Checking Air Conditioning System in the General Maintenance and Inspection Section)
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Seat suspension not working
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Blown fuse
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Replace fuse
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Radio does not function
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Blown fuse
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Replace fuse
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