Sharp AC Error Codes: Two Separate Code Systems Explained

Sharp is unusual in maintaining two entirely separate, non-overlapping code systems. Its global range reports a "section-dash-subsection" number such as 1-0, 2-1 or 11-3, where the first number is the fault section and the second identifies the specific fault within it. Regional split lines and the THU commercial series instead use a conventional alphanumeric E/F/H/P set. A dash in the code tells you immediately which table applies.

Product families covered

• Global split (numeric section-dash)

  Codes such as 1-0, 2-4, 13-2 from Sharp's official global list.

• Regional / THU series (alphanumeric)

  E, F, H, U and P codes on regional splits and the THU commercial series.

Where the code is displayed — and why it matters

The same fault can be labelled differently depending on which display you read it from, so identify the display before looking the code up.

Indoor unit display or Sharp app

The global numeric codes are reported here, including through Sharp's smart-app diagnostics.

Wired controller (THU series)

Shows the alphanumeric E/F/H/P codes.

Indoor LEDs (THU series)

The same fault set is also indicated by LED flash counts on some THU models.

Sharp's two code formats

The presence of a dash decides which table to read:

1-x / 5-x

Thermistor short-circuit and open-circuit errors

2-x

Overheating — compressor, coils, IPM

6-x / 7-x / 14-x

DC and AC current, PAM and PFC faults

17-x / 18-x

Serial communication faults

E / F / H / U / P + digit

Regional and THU series alphanumeric table

How the families differ

• The two systems share no meanings: a Sharp 1-0 and a Sharp E1 come from different tables and must never be cross-read.
• The global numeric system goes far beyond cooling faults — it includes louver, panel and self-cleaning filter mechanism errors that have no equivalent in the THU table.
• The THU series is a commercial line with water-circuit codes (E0 water pump, E9 water flow) that do not appear on residential splits.
• Sharp cassette and ducted-specific codes were not isolated in our source material and are not published here.

Sharp official global numeric codes

From Sharp's official global smart-app air-conditioner error code list. Severity is not given per code in our Sharp sources, so no severity level is published.

Sharp regional / THU series alphanumeric codes

From a regional distributor compilation cross-validated against a THU-series service PDF with matching LED flash-count logic.

Before you act on a code

• Check for a dash before looking a Sharp code up — the two systems are not interchangeable.
• EE on a THU controller means the keypad is locked, not that the unit has failed.
• Drive-side P-series protections are inverter faults: leave the unit off rather than resetting repeatedly.
• Sharp cassette and ducted-specific code tables are still in technical review.

B Corroborated across independent technical sources

How to identify your system

1. Note whether the code contains a dash — that decides which table applies.
2. Note where you read it: indoor display, app, wired controller, or an LED flash pattern.
3. Photograph the indoor unit's model label, and note whether the unit is residential or a THU commercial system.

No code showing? Start from the symptom

• AC not cooling