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Question:

Beautiful home air conditioning hang machine shows P4 what mean?

Beautiful home air conditioning hang machine shows P4 what mean?

Answer:

Temperature sensor malfunction, check the interior tube temperature. See if the machine is too dirty bad heat dissipation.
P is the air conditioning in protection, often appear means that there is something wrong with the air-conditioning, professional staff to check. Occasional shutdown after a while will be good
P4 is the temperature sensor fault, outdoor < condenser, environmental temperature, exhaust temperature >
P4: the temperature sensor is open circuit or short circuit, check: 1, check whether the sensor ontology quad is broken skin or fracture; If you have replaced; 2, check whether the sensor connection between ontology and the electric control main board is solid and reliable, and make adjustment if there is a problem, If 3, use multimeter detection sensor resistance, resistance to zero or infinity, explain for sensor fault; Otherwise can determine for indoor mainboard failure; Replace the motherboard sensor replacement sensors, mainboard failure. The experimental results show that more than three years had not been cleaned home wall-mounted air-conditioner its bacteria number 50 times mall central air conditioning; Less cleaning air conditioning, use a few years later will become an important source of PM2.5. Relevant professional bodies of urban household air-conditioning household survey found that 88% of the air conditioning heat sink bacteria, 84% of the total number of air conditioning heat sink mold, air conditioning cooling in the check out bacteria and nearly one hundred times. Cleaning air conditioning to master the correct way, don't just clean screen pack, cleaning heat sink. Due to the air conditioning heat sink sealed, only by the wet cloth to wipe, brush cleaning is invalid, should use the normal manufacturer production air conditioning disinfectant. If the heat sink on the rid of the dirt and germs, also can make air conditioning refrigeration effect is better

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