Part Details & Attributes

• Part Name: Air conditioning control assembly
• Brand: JFDL
• Application: FAW JH6 series of heavy trucks
• Category: Electronics and Lighting / HVAC Control.
• Material: ABS Plastic

• Temperature & Humidity Control: Allows for precise adjustment of cabin temperature and airflow humidity to ensure driver comfort during long hauls.
• Interface: Typically features digital displays or knobs to control fan speed, air distribution (windshield, feet, face), and A/C activation.
• Reliability: Designed to withstand the high-vibration and extreme temperature environments of commercial trucking.

• Startup Sequence: Avoid turning the A/C to "Max" immediately after starting a hot truck. Open the windows for 2 minutes first to let hot air escape; this reduces the initial high-load stress on the control unit's internal relays.
• Mode Switching: Wait 2–3 seconds between switching air distribution modes (e.g., from "Face" to "Defrost"). This allows the small electric actuators governed by the unit to complete their travel without drawing excess current.
• Soft Touch: The buttons on this unit are membrane-type or micro-switches. Avoid using sharp objects (pens/tools) to press them, as this punctures the protective overlay and leads to moisture ingress.

• Dust Prevention: Use a soft, dry microfiber cloth to clean the display and buttons. Compressed air is best for removing dust from the gaps around the knobs.
• Avoid Liquids: Never spray cleaning agents directly onto the panel. Liquid can seep behind the buttons and short-circuit the PCB (Printed Circuit Board). Spray the cloth first, then wipe.
• Connector Inspection: During major vehicle service, ensure the rear wiring harness is seated tightly. Vibration in heavy trucks can occasionally loosen the PBT plastic connector, leading to flickering displays or intermittent A/C failure.