P01 P03 P04 | Toshiba MMU-AP0121MH, MMU-AP0181MH, MMU-AP0151MH

Check code

Main	Outdoor 7-segment display
remote
remote	Check code	Auxiliary code
controller	Check code	Auxiliary code

P01	—	—

P03	P03	—

P04	P04	01: Compressor 1 side
		02: Compressor 2 side

P05	P05	01: Power supply open phase
		02: Power supply negative phase

Detected	Check code name	Status	Error detection condition		Check item (position)
position	Check code name	Status	Error detection condition		Check item (position)
position
Indoor	Indoor fan motor error	Corresponding		•	Check the lock of fan motor (AC fan).
		unit only stops.		•	Check cabling.
				•	Check cabling.

I/F	Discharge temp TD1 error	All stop	Discharge temp (TD1) exceeded 115°C.	•	Check full opening of outdoor service valves (Gas side, Liquid side).
				• Check clogging of outdoor PMV. (PMV1,2)
				• Check characteristics of TD1 sensor resistance value.
				•	Check refrigerant shortage.
				•	Check 4-way valve error.
				•	Check leakage of SV41 circuit.
				• Check SV4 circuit. (Miswiring and misinstallation of SV41 and SV42)
				•	Check leakage of SV5 circuit.
				• Check leakage of SV6 circuit. (Capillary clogging, valve operation error)
				•	Check mispiping of discharge gas/suction gas main pipe.
				•	Check Flow selector unit.
					Check leakage of SVD valve and SVS valve.
					(Check leakage of SVDD valve and SVSS.)
					Check mispiping of FS unit connecting pipe (Suction gas/Discharge gas),
					wiring between FS unit and indoor unit, and connection of connectors.
					Check miswiring of SVS/SVD valves.

I/F	Actuation of high-pressure	All stop	High-pressure SW actuated.	•	Check Pd pressure sensor error.
	SW			•	Check full opening of outdoor service valves (Gas side, Liquid side).
				•
				•	Check outdoor fan error.
				•	Check outdoor fan motor error.
				• Check clogging of outdoor PMV. (PMV1,2)
				•	Check clogging of indoor/outdoor heat exchangers.
				•	Check short-circuiting of outdoor suction/discharge air.
				•	Check clogging of SV2 circuit.
				• Check outdoor P.C. board (I/F) error.
				• Check indoor fan system error. (Cause of air volume decrease)
				• Check opening of indoor PMV.
				•	Check miscabling of communication line between indoor and outdoor.
				•	Check operation error of check valve of discharge pipe.
				•	Check SV4 valve circuit.
				•	Check SV5 valve circuit.
				•	Check refrigerant overcharge.
				•	Check mispiping of discharge gas/suction gas main pipe.
				•	Check circuit clogging at auxiliary heat exchanger side.
					(PMV3, SV12, check valve)
				•	Check FS unit.
					Check clogging of SVD valve and operation error.
					Check wiring inside of FS unit. (SVD/SVS coil miswiring, etc.)
					Check wiring between FS unit and indoor unit.
					(Miswiring, Disconnection, Wiring missing)

I/F	Open phase negative	All stop	• Open phase was detected when the	• Check outdoor power line.
	phase		power turned on.	• Check outdoor P.C. board (I/F) error.
			• Negative phase was detected when	• Check outdoor P.C. board (I/F) error.
			• Negative phase was detected when
			the power turned on.

MMU-AP0181MH, MMU-AP0071MH, MMU-AP0091MH, MMU-AP0151MH, MMU-AP0121MH specifications

The Toshiba MMU-AP series, consisting of models MMU-AP0121MH, MMU-AP0151MH, MMU-AP0091MH, MMU-AP0071MH, and MMU-AP0181MH, represents a significant advancement in the realm of power management and energy efficiency for a variety of applications. These modules are designed to optimize performance while ensuring minimal energy consumption, making them suitable for both commercial and industrial uses.

One of the standout features of the MMU-AP series is its intelligent power management technology. This feature allows for adaptive energy distribution based on real-time demands. By leveraging precise control algorithms, the modules can adjust their output to match the specific requirements of connected devices, ultimately leading to reduced power loss and increased efficiency. This adaptability not only benefits end-users by lowering operational costs but also contributes to a greener environment by minimizing waste.

The versatility of the MMU-AP series is evident in its wide range of operational capabilities. These power modules are designed to work effectively in various voltage levels and load conditions. With input voltage ranges suitable for standard industrial environments, they can easily be integrated into existing systems, enhancing overall functionality without requiring extensive modifications.

Moreover, the compact design of the MMU-AP modules is another notable characteristic. Their size and light weight facilitate easier installation and integration into tight spaces, making them ideal for applications where real estate is a premium. This compact profile does not compromise performance, as these modules are engineered to deliver robust power output while maintaining thermal efficiency.

In terms of reliability, the MMU-AP series is built with high-grade components that withstand harsh operating conditions. With features such as over-voltage protection, short-circuit protection, and thermal shutdown capabilities, users can trust that their equipment would operate safely and efficiently, thereby extending the lifespan of both the power modules and the devices they serve.

Finally, Toshiba’s commitment to innovation ensures that the MMU-AP series incorporates cutting-edge technology. The series supports communication protocols that enable seamless integration with smart systems, paving the way for advanced monitoring and control functions. This levels up the user experience, providing insights into performance and diagnostics that are crucial for uptime and reliability in demanding environments.

In conclusion, the Toshiba MMU-AP series offers a blend of efficiency, adaptability, and advanced technology, making it a valuable asset for various industrial and commercial applications. Its intelligent design and robust features ensure that users can optimize energy use while maintaining high performance and reliability.

Toshiba MMU-AP0121MH, MMU-AP0181MH, MMU-AP0151MH, MMU-AP0091MH, MMU-AP0071MH P01 P03 P04

Models: MMU-AP0181MH MMU-AP0071MH MMU-AP0091MH MMU-AP0151MH MMU-AP0121MH

Check code

remote

Check code

Auxiliary code

P01

P03

P04

MMU-AP0181MH, MMU-AP0071MH, MMU-AP0091MH, MMU-AP0151MH, MMU-AP0121MH specifications