A kind of fault detection method of multi-line indoor machine self-starting and stopping

Abstract

The invention discloses a fault detection method for self-starting and stopping of multi-line indoor units, and a method for detecting self-starting and stopping faults of multi-line indoor units, comprising the following steps: S1: the system judges that a fault occurs and automatically starts and stops, then the number of automatic start-up times for the fault is determined. Count, if the fault self-starting and stopping times n<M, then go to step S4, where n and M are natural numbers; S2: Calculate the continuous working time t of the air conditioner, if t>=K, the system will send the fault code to the mobile phone APP , and display it on the display board of other normal working internal units. It will be restored after a few minutes of display, and will be displayed again after a period of time. The interval display is displayed; among them, the unit of t and K is minutes. When the invention detects a fault, the internal unit cuts off the power supply by itself, reduces the probability of frequent self-starting and stopping to damage the internal unit, and saves the user from the trouble of sound and power consumption caused by frequent self-starting and stopping.

Description

technical field [0001] The invention relates to the technical field of air conditioners, in particular to a fault detection method for self-starting and stopping of a multi-line indoor unit. Background technique [0002] Multi-line air-conditioning system refers to an air-conditioning system in which one outdoor unit is connected to two or more indoor units through piping. In the existing multi-connected air-conditioning system, if one of the internal units fails to automatically turn on and off continuously, the phenomenon can only be stopped by cutting off the power supply. However, once the power is cut off, other indoor units of the multi-connected air conditioning system will not work, affecting the normal use of other users; if the power is not cut off, the faulty indoor units will always be automatically turned on and off. If the user is not at home at this time, the air conditioner frequently Turning on will cause unnecessary waste of electric energy; even if there ...

AI Technical Summary

Problems solved by technology

However, once the power is cut off, other indoor units of the multi-split air-conditioning system will not work, affecting the normal use of other users; Turning it on will cause unnecessary waste of electric energy; even if there is no maintenance personnel to deal with it in time, the frequent switching sound of self-starting and stopping will seriously affect the user's rest

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