Fujitsu CHECK RUN RESULTS status display

What it means

After check run, the MONITOR LEDs light in sequence to show whether the connected indoor units match the expected order. This is a setup result display, not a component failure code.

Urgency

Likely causes

1. Indoor/outdoor communication wiring or terminal problem
2. Loose low-voltage connector after service or vibration
3. Power interruption during the control handshake
4. Indoor or outdoor control board fault after wiring is verified

Homeowner fix

Do not change wiring or DIP switches. If the result shows a mismatch or appears after installation, have the installer correct it.

When to call a pro

Call the installing contractor if the result order is wrong, the number of indoor units is wrong, or normal operation does not resume.

Repair vs replace

This is a status display, not a repair-or-replace decision.

• Fujitsu AIRSTAGE H-series Compact Cassette 9,000 BTU R-32 208/230V (ACUH09KUAS / AOUH09KUAS1)

  AIRSTAGE H-series

• Fujitsu AIRSTAGE H-series Compact Cassette 12,000 BTU R-32 208/230V (ACUH12KUAS / AOUH12KUBS1)

  AIRSTAGE H-series

• Fujitsu AIRSTAGE H-series Floor-Mounted Console 12,000 BTU R-32 208/230V (AGUH12KUAS / AOUH12KUBS1)

  AIRSTAGE H-series

• Fujitsu AIRSTAGE H-series Mid Static Duct 12,000 BTU R-32 208/230V (ARUH12KUAS / AOUH12KUBS1)

  AIRSTAGE H-series

Parts for this line

The parts catalog for Fujitsu AIRSTAGE H-series lists 6 sourced replacement parts for this product line.

For your technician

Technician note: record the seven-second LED order in the result table before resetting automatic wiring-correction memory. Page context: Fujitsu maps this display to the AIRSTAGE H-series line; source: Fujitsu AOUH18-45KWAS/KWAH R-32 Design & Technical Manual; display convention: match the letter C, letter H, letter E, letter C, letter K, letter R, letter U, letter N, letter R, letter E, letter S, letter U, letter L, letter T, and letter S marker exactly before comparing neighboring codes.

Which systems show it

• Fujitsu Halcyon/AIRSTAGE R-32 AOUH18KWAS2, AOUH24KWAS3, AOUH36KWAS4, and AOUH45KWAS5 outdoor-unit manuals where Section 14-3 lists the same SW1/MONITOR error-code table.
• Fujitsu AOUH18KWAH2 and AOUH36KWAH4 XLTH sibling design manuals where the extracted Section 14-3 table matches the KWAS manuals.

Related troubleshooting

Use the symptom guide alongside the exact display code if the unit is flashing, cycling, or showing comfort symptoms.

Reset note

Do not change wiring or DIP switches. If the result shows a mismatch or appears after installation, have the installer correct it.

Manual trigger

After check run, the MONITOR LEDs light in sequence to show whether the connected indoor units match the expected order. This is a setup result display, not a component failure code.

Related codes

Source

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