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Toshiba 21 fault code

Toshiba air conditioning

What it means

Outdoor return signal stops (with TE/TC high temperature)

Block 03. As 07, but recorded after 11 detections, and the manual adds a high TE/TC temperature cause — TE in cooling, TC in heating. That points at heat-exchanger fouling rather than a purely electrical fault.

Safety: Safe isolation before opening terminal covers — mains present on the interconnect.

UK models this code applies to

From the Toshiba service literature we hold (Toshiba service manual SVM-19001-3 (Seiya) / SVM-20015-4 (Shorai Edge) §11-4, Table 11-4-1) — not a scraped list.

Seiya RAS-B05S4KVG-E / RAS-05E2AVG-ESeiya RAS-B07S4KVG-E / RAS-07E2AVG-ESeiya RAS-B10S4KVG-E / RAS-10E2AVG-ESeiya RAS-B13S4KVG-E / RAS-13E2AVG-ESeiya RAS-B16S4KVG-E / RAS-16E2AVG-ESeiya RAS-B18S4KVG-E / RAS-18E2AVG-ESeiya RAS-B24S4KVG-E / RAS-24E2AVG-EShorai Curve RAS-B10P2KVSG(B)-E / RAS-10J2AVSG-E1Shorai Edge RAS-B13P2KVSG(B)-E / RAS-13J2AVSG-E1Shorai Edge RAS-B16P2KVSG(B)-E / RAS-16J2AVSG-E1Shorai Edge RAS-B18P2KVSG(B)-E / RAS-18J2AVSG-E1Shorai Edge RAS-B22P2KVSG(B)-E / RAS-22J2AVSG-E1Shorai Edge RAS-B24P2KVSG(B)-E / RAS-24J2AVSG-E1Haori RAS-B10N4KVRG-E1 / RAS-10J2AVSG-E1Haori RAS-B13N4KVRG-E / RAS-13J2AVSG-E1Haori RAS-B16N4KVRG-E / RAS-16J2AVSG-E1Daiseikai 10 RAS-B10S4KVPG-E / RAS-10S4AVPG-EDaiseikai 10 RAS-B13S4KVPG-E / RAS-13S4AVPG-EDaiseikai 10 RAS-B18S4KVPG-E / RAS-18S4AVPG-ESeiya RAS-B10J2KVG-E / RAS-10J2AVG-ESeiya RAS-B13J2KVG-E / RAS-13J2AVG-ESeiya RAS-B16J2KVG-E / RAS-16J2AVG-ESeiya RAS-B24J2KVG-E / RAS-24J2AVG-EShorai Edge RAS-B10J2KVSG-E / RAS-10J2AVSG-EShorai Edge RAS-B13J2KVSG-E / RAS-13J2AVSG-EShorai Edge RAS-B16J2KVSG-E / RAS-16J2AVSG-EShorai Edge RAS-B18J2KVSG-E / RAS-18J2AVSG-EShorai Edge RAS-B24J2KVSG-E / RAS-24J2AVSG-ERAS R410A wall splits RAS-07BAV-ERAS R410A wall splits RAS-10BAV-ERAS R410A wall splits RAS-13BAV-ERAS R410A wall splits RAS-16BAV-ERAS R410A wall splits RAS-107SAV-E6RAS R410A wall splits RAS-137SAV-E6RAS R410A wall splits RAS-167SAV-E5RAS R410A wall splits RAS-10N3AVP-ERAS R410A wall splits RAS-13N3AVP-ERAS R410A wall splits RAS-16N3AVP-ERAS R410A wall splits RAS-10G2AVP-ERAS R410A wall splits RAS-13G2AVP-ERAS R410A wall splits RAS-16G2AVP-ERAS R410A wall splits RAS-10N3AV2-E1RAS R410A wall splits RAS-13N3AV2-E1RAS R410A wall splits RAS-16N3AV2-ERAS R410A wall splits RAS-18N3AV2-ERAS R410A multi-split outdoor RAS-2M14S3AV-ERAS R410A multi-split outdoor RAS-2M18S3AV-ERAS R410A multi-split outdoor RAS-3M18S3AV-ERAS R410A multi-split outdoor RAS-3M26S3AV-ERAS R410A multi-split outdoor RAS-4M27S3AV-ERAS R410A multi-split outdoor RAS-5M34S3AV-ERAS R32 multi RAS-2M10U2AVG-ERAS R32 multi RAS-2M14U2AVG-ERAS R32 multi RAS-2M18U2AVG-ERAS R32 multi RAS-3M18U2AVG-ERAS R32 multi RAS-3M26U2AVG-ERAS R32 multi RAS-4M27U2AVG-ERAS R32 multi RAS-5M34U2AVG-E

Now the harder half: proving what caused it

21 names a symptom, not a root cause. In the app, the same code opens a guided investigation: what to measure first, the expected values for your exact model, and an honest verdict — including “nothing in this machine is broken” when that's what the readings say.

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Other Toshiba codes · see all →

00010203RELEASE0C0d111204