Toshiba 1F fault code Toshiba air conditioning
What it means Compressor high current at minimum frequency
Block 03. The compressor is still drawing high current even though the operating Hz has been reduced to its minimum limit — installation problem, refrigeration-cycle problem, or a failing compressor.
Safety: Safe isolation before disconnecting the compressor or testing the inverter board — capacitors hold charge.
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-E Seiya RAS-B07S4KVG-E / RAS-07E2AVG-E Seiya RAS-B10S4KVG-E / RAS-10E2AVG-E Seiya RAS-B13S4KVG-E / RAS-13E2AVG-E Seiya RAS-B16S4KVG-E / RAS-16E2AVG-E Seiya RAS-B18S4KVG-E / RAS-18E2AVG-E Seiya RAS-B24S4KVG-E / RAS-24E2AVG-E Shorai Curve RAS-B10P2KVSG(B)-E / RAS-10J2AVSG-E1 Shorai Edge RAS-B13P2KVSG(B)-E / RAS-13J2AVSG-E1 Shorai Edge RAS-B16P2KVSG(B)-E / RAS-16J2AVSG-E1 Shorai Edge RAS-B18P2KVSG(B)-E / RAS-18J2AVSG-E1 Shorai Edge RAS-B22P2KVSG(B)-E / RAS-22J2AVSG-E1 Shorai Edge RAS-B24P2KVSG(B)-E / RAS-24J2AVSG-E1 Haori RAS-B10N4KVRG-E1 / RAS-10J2AVSG-E1 Haori RAS-B13N4KVRG-E / RAS-13J2AVSG-E1 Haori RAS-B16N4KVRG-E / RAS-16J2AVSG-E1 Daiseikai 10 RAS-B10S4KVPG-E / RAS-10S4AVPG-E Daiseikai 10 RAS-B13S4KVPG-E / RAS-13S4AVPG-E Daiseikai 10 RAS-B18S4KVPG-E / RAS-18S4AVPG-E Seiya RAS-B10J2KVG-E / RAS-10J2AVG-E Seiya RAS-B13J2KVG-E / RAS-13J2AVG-E Seiya RAS-B16J2KVG-E / RAS-16J2AVG-E Seiya RAS-B24J2KVG-E / RAS-24J2AVG-E Shorai Edge RAS-B10J2KVSG-E / RAS-10J2AVSG-E Shorai Edge RAS-B13J2KVSG-E / RAS-13J2AVSG-E Shorai Edge RAS-B16J2KVSG-E / RAS-16J2AVSG-E Shorai Edge RAS-B18J2KVSG-E / RAS-18J2AVSG-E Shorai Edge RAS-B24J2KVSG-E / RAS-24J2AVSG-E RAS R410A wall splits RAS-07BAV-E RAS R410A wall splits RAS-10BAV-E RAS R410A wall splits RAS-13BAV-E RAS R410A wall splits RAS-16BAV-E RAS R410A wall splits RAS-107SAV-E6 RAS R410A wall splits RAS-137SAV-E6 RAS R410A wall splits RAS-167SAV-E5 RAS R410A wall splits RAS-10N3AVP-E RAS R410A wall splits RAS-13N3AVP-E RAS R410A wall splits RAS-16N3AVP-E RAS R410A wall splits RAS-10G2AVP-E RAS R410A wall splits RAS-13G2AVP-E RAS R410A wall splits RAS-16G2AVP-E RAS R410A wall splits RAS-10N3AV2-E1 RAS R410A wall splits RAS-13N3AV2-E1 RAS R410A wall splits RAS-16N3AV2-E RAS R410A wall splits RAS-18N3AV2-E RAS R410A multi-split outdoor RAS-2M14S3AV-E RAS R410A multi-split outdoor RAS-2M18S3AV-E RAS R410A multi-split outdoor RAS-3M18S3AV-E RAS R410A multi-split outdoor RAS-3M26S3AV-E RAS R410A multi-split outdoor RAS-4M27S3AV-E RAS R410A multi-split outdoor RAS-5M34S3AV-E RAS R32 multi RAS-2M10U2AVG-E RAS R32 multi RAS-2M14U2AVG-E RAS R32 multi RAS-2M18U2AVG-E RAS R32 multi RAS-3M18U2AVG-E RAS R32 multi RAS-3M26U2AVG-E RAS R32 multi RAS-4M27U2AVG-E RAS R32 multi RAS-5M34U2AVG-E
Now the harder half: proving what caused it 1F 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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