Air conditioner defrosting control method and device

Abstract

The invention provides an air conditioner defrosting control method and device. The method comprises the following steps that an indoor unit receives a defrosting mark sent by an outdoor unit; and when the value of the defrosting mark represents that defrosting is carried out, execution of the inner disc fault judgment process is suspended, the current process is finished, when the value of the defrosting mark represents that normal heating is carried out, timing is started, and when the timing duration reaches the preset buffering duration, the inner disc fault judgment process continues to be executed, wherein the inner disc fault judgment process comprises the following steps of acquiring the temperature value of an indoor coil read by an indoor coil temperature sensor and sending an inner disc fault notification signal to the outdoor unit when the temperature value of the indoor coil is not within a preset normal temperature range of the indoor coil. According to the air conditioner defrosting control method and device, no sensor fault judgment is executed in the defrosting process, so that it is guaranteed that the defrosting process cannot be interrupted, and therefore the defrosting process can be normally completed, and the phenomenon that the heating effect is influenced can be avoided.

Description

technical field [0001] The invention relates to the field of electronic technology, in particular to an air conditioner defrosting control method and device. Background technique [0002] The air conditioner includes an indoor unit and an outdoor unit. The unit control system can control the startup and frequency reduction of the compressor according to the temperature sensed by the sensor. The indoor unit and the outdoor unit exchange energy through the system pipeline to realize the basic functions of the air conditioner. In heating mode, defrosting is required when certain conditions are met. However, when entering defrosting, the temperature of the inner plate changes sharply, which may exceed the temperature range of the sensor. [0003] At present, as long as the temperature range is exceeded, it will stop and report a fault. In this way, the defrosting process cannot be completed normally, which affects the heating effect. Contents of the invention [0004] The i...

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Problems solved by technology

In this way, the defrosting process cannot be completed normally, which affects the heating effect

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