Air conditioner shows H1 fault code solution – Rittal

Create Date: 2024-8-30 12:03:23|Source: Rittal/Rittal

1. The air conditioner displays the H1 fault code - the reason

When the outdoor temperature is low and the humidity is high, the heat exchanger of the outdoor unit will be frosted after the air conditioner runs for a period of time, then the automatic defrost function will be activated, and the heating operation will be temporarily stopped for 5-10 minutes. Air conditioning heating and defrosting shows H1 This is a normal phenomenon, because the air conditioner heats up, the outside unit becomes cool, when the heat reaches a certain temperature, the condenser of the outside unit will be defrosted, at this time, the internal fan is stopped, the external fan is shut down, the compressor works, the four-way valve is reversed, and the external machine is heated after the reversal to melt the frost of the external machine, so the internal machine becomes refrigeration, but it will not blow the wind, and the heating will return to normal after the end of the external machine defrosting (3-5 minutes), please don't worry.

2. The air conditioner displays an H1 fault code - indicating that defrost is needed

First of all, we have to figure out what the H1 fault code means, what is the fault of the air conditioner H1, at this time, it means that the air conditioner is defrosting, and now basically every air conditioner has such a defrosting function. During the automatic defrost process, both the indoor and outdoor units of the fans are stopped, and steam may be emitted from the outdoor units during the defrosting process. This is caused by rapid defrosting, not a malfunction, and heating operation is resumed after defrosting.

3. The air conditioner displays the H1 fault code - the solution

The new defrosting function of the air conditioner is to press the mode key and the auxiliary heat key at the same time when the remote control is turned off, and H1 will be displayed, at this time, the remote control air conditioner has the new defrosting function, that is, after the remote control is turned off during defrosting, the air conditioner will continue to defrost, and it will not automatically shut down until the end to avoid defrosting the next time it is turned on.

Air conditioner shows H1 fault code solution – Rittal

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