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<h2 id="isPasted">Introduction</h2>The &quot;L0&quot; and &quot;L1&quot; error codes indicate DC cable bus low or high voltage protection. This article is for <a href="https://www.pioneerminisplit.com/collections/vertex-ducted-central-split" target="_blank" rel="noopener noreferrer">Vertex Ducted Central Split (DYC-18) systems</a>.&#xA0;Cause:&#xA0;The DC voltage is abnormal.&#xA0;Measure the power supply voltage. If there is no problem with the power supply voltage, replace the main control board of the outdoor unit.

The "L0" and "L1" error codes indicate DC cable bus low or high voltage protection. This article is for Vertex Ducted Central Split (DYC-18) systems.

L0 & L1 Error Codes

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Error Codes for Vertex Ducted Central Split (DYC-18) Systems

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L0 & L1 Error CodesUpdated 4 days ago

Introduction