Toshiba 01 fault code

Toshiba air conditioning

What the Toshiba 01 fault code means, from the manufacturer's own service literature, and the UK models it applies to.

What it means

OPERATION + TIMER (White) flashing 5 Hz: connecting cable / serial signal

Stage-one block code. Toshiba: "Protective circuit operation for connecting cable and serial signal system" — the indoor and outdoor units are not talking, or the interconnect is at fault.

Source: Toshiba service manual SVM-19001-3 (Seiya) / SVM-18009 (Shorai P) §11-3, Table 11-3-1 (flashing-LED block codes)

UK models this code applies to

Tap yours to open 01 on that machine.

Wall-mounted79

RAS-05BKV-E / RAS-05BAV-E RAS-07BKV-E / RAS-07BAV-E RAS-10BKV-E / RAS-10BAV-E RAS-10G2KVP-E / RAS-10G2AVP-E RAS-13BKV-E / RAS-13BAV-E RAS-13G2KVP-E / RAS-13G2AVP-E RAS-16BKV-E / RAS-16BAV-E RAS-16G2KVP-E / RAS-16G2AVP-E RAS-18E2KVG-E / RAS-18E2AVG-E RAS-18J2KVG-E / RAS-18J2AVG-E RAS-24E2KVG-E / RAS-24E2AVG-E RAS-077SKV-E7 / RAS-077SAV-E6 RAS-107SKV-E7 / RAS-107SAV-E6 RAS-137SKV-E7 / RAS-137SAV-E6 RAS-167SKV-E7 / RAS-167SAV-E5 RAS-B05E2KVG-E / RAS-05E2AVG-E RAS-B05J2KVG-E / RAS-05J2AVG-E RAS-B05S4KVG-E / RAS-05E2AVG-E RAS-B07E2KVG-E / RAS-07E2AVG-E RAS-B07G3KVSG-E / RAS-07J2AVSG-E1 RAS-B07G3KVSGB-E / RAS-07J2AVSG-E1 RAS-B07J2KVG-E / RAS-07J2AVG-E RAS-B07P2KVSG-E / RAS-07P2AVSG-E RAS-B07P2KVSGB-E / RAS-07P2AVSG-E RAS-B07S4KVG-E / RAS-07E2AVG-E RAS-B10E2KVG-E / RAS-10E2AVG-E RAS-B10G3KVSG-E / RAS-10J2AVSG-E1 RAS-B10G3KVSGB-E / RAS-10J2AVSG-E1 RAS-B10J2KVG-E / RAS-10J2AVG-E RAS-B10J2KVSG-E / RAS-10J2AVSG-E RAS-B10N3KV2-E1 / RAS-10N3AV2-E1 RAS-B10N3KVP-E / RAS-10N3AVP-E RAS-B10N4KVRG-E1 / RAS-10J2AVSG-E1 RAS-B10P2KVSG(B)-E / RAS-10P2AVSG-E RAS-B10S4KVG-E / RAS-10E2AVG-E RAS-B13E2KVG-E / RAS-13E2AVG-E RAS-B13G3KVSG-E / RAS-13J2AVSG-E1 RAS-B13G3KVSGB-E / RAS-13J2AVSG-E1 RAS-B13J2KVG-E / RAS-13J2AVG-E RAS-B13J2KVSG-E / RAS-13J2AVSG-E RAS-B13N3KV2-E1 / RAS-13N3AV2-E1 RAS-B13N3KVP-E / RAS-13N3AVP-E RAS-B13N4KVRG-E / RAS-13J2AVSG-E1 RAS-B13P2KVSG(B)-E / RAS-13P2AVSG-E RAS-B13S4KVG-E / RAS-13E2AVG-E RAS-B16E2KVG-E / RAS-16E2AVG-E RAS-B16G3KVSG-E / RAS-16J2AVSG-E1 RAS-B16G3KVSGB-E / RAS-16J2AVSG-E1 RAS-B16J2KVG-E / RAS-16J2AVG-E RAS-B16J2KVSG-E / RAS-16J2AVSG-E RAS-B16N3KV2-E1 / RAS-16N3AV2-E RAS-B16N3KVP-E / RAS-16N3AVP-E RAS-B16N4KVRG-E / RAS-16J2AVSG-E1 RAS-B16P2KVSG(B)-E / RAS-16P2AVSG-E RAS-B16S4KVG-E / RAS-16E2AVG-E RAS-B18G3KVSG-E / RAS-18J2AVSG-E1 RAS-B18G3KVSGB-E / RAS-18J2AVSG-E1 RAS-B18J2KVSG-E / RAS-18J2AVSG-E RAS-B18P2KVSG(B)-E / RAS-18P2AVSG-E RAS-B18S4KVG-E / RAS-18E2AVG-E RAS-B22G3KVSG-E / RAS-22J2AVSG-E1 RAS-B22G3KVSGB-E / RAS-22J2AVSG-E1 RAS-B22P2KVSG(B)-E / RAS-22P2AVSG-E RAS-B24G3KVSG-E / RAS-24J2AVSG-E1 RAS-B24G3KVSGB-E / RAS-24J2AVSG-E1 RAS-B24J2KVG-E / RAS-24J2AVG-E RAS-B24J2KVSG-E / RAS-24J2AVSG-E RAS-B24P2KVSG(B)-E / RAS-24P2AVSG-E RAS-B24S4KVG-E / RAS-24E2AVG-E RAS-M05G3KVSG-E RAS-M05G3KVSGB-E RAV-GM1101KRTP-E / RAV-GP1101AT-E · RAV-GP1101AT8-E RAV-HM901KRTP-E / RAV-GM901AT(J)P-E RAV-RM561KRTP-E RAV-RM801KRTP-E RAV-SM307KRTP-E RAV-SM407KRTP-E RAV-SM566KRT-E RAV-SM806KRT-E

Cassettes17

RAS-M10S4MUVG-E RAS-M13S4MUVG-E RAS-M16S4MUVG-E RAV-GM561UT-E RAV-GM801UT-E RAV-GM1101UT-E / RAV-GP1101AT-E RAV-GM1401UT-E / RAV-GP1401AT-E RAV-HM901UTP-E / RAV-GM901AT(J)P-E RAV-HM1101UTP-E RAV-HM1401UTP-E RAV-HM1601UTP-E / RAV-GM1601ATP-E · RAV-GM1601ATJP-E · RAV-GM1601AT8P-E · RAV-GM1601AT8JP-E RAV-RM561MUT-E RAV-RM561UTP-E RAV-RM801UTP-E RAV-RM1101UTP-E / RAV-GP1101AT-E · RAV-GP1101AT8-E RAV-RM1401UTP-E / RAV-GP1401AT-E · RAV-GP1401AT8-E RAV-RM1601UTP-E / RAV-GP1601AT8-E

Ducted20

Ceiling suspended10

RAV-HM401CTP-E RAV-HM901CTP-E / RAV-GM901AT(J)P-E RAV-HM1101CTP-E RAV-HM1401CTP-E RAV-HM1601CTP-E RAV-RM561CTP-E RAV-RM801CTP-E RAV-RM1101CTP-E / RAV-GP1101AT-E · RAV-GP1101AT8-E RAV-RM1401CTP-E / RAV-GP1401AT-E · RAV-GP1401AT8-E RAV-RM1601CTP-E / RAV-GP1601AT8-E

Floor consoles3

RAS-B10J2FVG-E / RAS-10J2AVSG-E1 RAS-B13J2FVG-E / RAS-13J2AVSG-E1 RAS-B18J2FVG-E / RAS-18J2AVSG-E1

Floor-standing4

RAV-RM561FT-EN RAV-RM801FT-EN RAV-RM1101FT-EN / RAV-GP1101AT-E RAV-RM1401FT-EN / RAV-GP1401AT-E

Indoor and outdoor pairs1

RAS-077SKV-E6 / RAS-077SAV-E6

Multi-split outdoor units13

RAS-2M10U2AVG-E RAS-2M14S3AV-E RAS-2M14U2AVG-E RAS-2M18S3AV-E RAS-2M18U2AVG-E RAS-3M18S3AV-E RAS-3M18U2AVG-E RAS-3M26S3AV-E RAS-3M26U2AVG-E RAS-4M27S3AV-E RAS-4M27U2AVG-E RAS-5M34S3AV-E RAS-5M34U2AVG-E

Outdoor units108

RAS-2M10G3AVG-E RAS-2M14G3AVG-E RAS-2M18G3AVG-E RAS-3M18G3AVG-E RAS-3M26G3AVG-E RAS-4M27G3AVG-E RAS-5M34G3AVG-E RAS-07BAV-E RAS-10BAV-E RAS-10G2AVP-E RAS-10N3AV2-E1 RAS-10N3AVP-E RAS-13BAV-E RAS-13G2AVP-E RAS-13N3AV2-E1 RAS-13N3AVP-E RAS-16BAV-E RAS-16G2AVP-E RAS-16N3AV2-E RAS-16N3AVP-E RAS-18N3AV2-E RAS-107SAV-E6 RAS-137SAV-E6 RAS-167SAV-E5 RAV-GM301ATP-E RAV-GM303ATJP-E RAV-GM303ATP-E RAV-GM401ATP-E RAV-GM403ATP-E RAV-GM561ATJP-E RAV-GM561ATP-E RAV-GM561ATP-E1 RAV-GM563ATP-E RAV-GM703ATP-E RAV-GM703ATP-TR RAV-GM801ATJP-E RAV-GM801ATP-E RAV-GM803ATP-E RAV-GM803ATP-TR RAV-GM903ATP-E RAV-GM1101AT8P-E RAV-GM1101ATJP-E RAV-GM1101ATP-E RAV-GM1103AT8P-E RAV-GM1103ATP-E RAV-GM1401AT8P-E RAV-GM1401ATJP-E RAV-GM1401ATP-E RAV-GM1403AT8P-E RAV-GM1403ATP-E RAV-GM1603AT8P-E RAV-GM1603ATP-E RAV-GM2241AT8-E RAV-GM2241AT8-E1 RAV-GM2243AT8P-E RAV-GM2801AT8-E RAV-GM2801AT8-E1 RAV-GM2803AT8P-E RAV-GP563ATP-E RAV-GP703ATP-E RAV-GP803ATP-E RAV-GP1103AT8P-E RAV-GP1103ATP-E RAV-GP1401AT-E1 RAV-GP1403AT8P-E RAV-GP1403ATP-E RAV-GP1603AT8P-E RAV-GP1603ATP-E RAV-GV561ATP-E RAV-GV801ATP-E RAV-GV1101AT8P-E RAV-GV1101ATP-E RAV-GV1401AT8P-E RAV-GV1401ATP-E RAV-GV1601AT8P-E RAV-GV1601AT8P-E1 RAV-GV1601ATP-E RAV-SM80ATP-E RAV-SM304ATP-E RAV-SM404ATP-E RAV-SM564ATP-E RAV-SM804ATP-E RAV-SM1104AT8P-E RAV-SM1104AT8P-E1 RAV-SM1104ATP-E RAV-SM1104ATP-E1 RAV-SM1404AT8P-E RAV-SM1404ATP-E RAV-SM1404ATP-E1 RAV-SM1603AT-E RAV-SM1603AT-E1 RAV-SM2244AT8-E RAV-SM2246AT8-E RAV-SM2804AT8-E RAV-SM2806AT8-E RAV-SP404ATP-E RAV-SP564ATP-E RAV-SP804ATP-E RAV-SP1104AT-E RAV-SP1104AT-E1 RAV-SP1104AT8-E RAV-SP1104AT8-E1 RAV-SP1404AT-E RAV-SP1404AT-E1 RAV-SP1404AT8-E RAV-SP1404AT8-E1 RAV-SP1604AT8-E RAV-SP1604AT8-E1

Other models30

01 on these comes from each model's own manual, which may not match the meaning above — tap yours to read it.

RAS-B10S4KVPG-E / RAS-10S4AVPG-E RAS-B13S4KVPG-E / RAS-13S4AVPG-E RAS-B18S4KVPG-E / RAS-18S4AVPG-E

Now the harder half: proving what caused it

01 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.

Chase 01 on your machine →

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