Toshiba 18 fault code

Toshiba air conditioning

What the Toshiba 18 fault code means, from the manufacturer's own service literature, and the UK models it applies to.

What it means

TE / TS sensor fault (or the two swapped)

Block 02 (outdoor PCB). TE (outdoor heat-exchanger) or TS (suction pipe) sensor is out of place, disconnected, shorted — or the two are misconnected into each other's connector. The manual warns 18 can also appear when the 4-way valve is mis-operating, because TE/TS then read an abnormal relationship.

Safety: Safe isolation before disconnecting sensors or working on the PCB.

Source: Toshiba service manual SVM-19001-3 (Seiya) / SVM-20015-4 (Shorai Edge) §11-4, Table 11-4-1

UK models this code applies to

Tap yours to open 18 on that machine.

Wall-mounted49

RAS-18E2KVG-E / RAS-18E2AVG-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-B05S4KVG-E / RAS-05E2AVG-E RAS-B07E2KVG-E / RAS-07E2AVG-E RAS-B07G3KVSG-E / RAS-07J2AVSG-E1 RAS-B07G3KVSGB-E / RAS-07J2AVSG-E1 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-B10P2KVSG(B)-E / RAS-10P2AVSG-E RAS-B10S4KVG-E / RAS-10E2AVG-E RAS-B13E2KVG-E / RAS-13E2AVG-E 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-B16J2KVSG-E / RAS-16J2AVSG-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-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

Ducted10

RAV-HM901BTP-E / RAV-GM901AT(J)P-E RAV-HM1101BTP-E RAV-HM1401BTP-E RAV-HM1601BTP-E / RAV-GM1601ATP-E · RAV-GM1601ATJP-E · RAV-GM1601AT8P-E · RAV-GM1601AT8JP-E RAV-RM561BTP-E RAV-RM561SDT-E / RAV-GP561ATP-E · RAV-GP561ATW-E RAV-RM801BTP-E RAV-RM1101BTP-E / RAV-GP1101AT-E · RAV-GP1101AT8-E RAV-RM1401BTP-E / RAV-GP1401AT-E · RAV-GP1401AT8-E RAV-RM1601BTP-E / RAV-GP1601AT8-E

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 consoles1

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

Outdoor units87

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

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

Wall-mounted33

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-18J2KVG-E / RAS-18J2AVG-E RAS-24E2KVG-E / RAS-24E2AVG-E RAS-B05J2KVG-E / RAS-05J2AVG-E RAS-B07J2KVG-E / RAS-07J2AVG-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-B10S4KVPG-E / RAS-10S4AVPG-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-B13S4KVPG-E / RAS-13S4AVPG-E RAS-B16J2KVG-E / RAS-16J2AVG-E RAS-B16N3KV2-E1 / RAS-16N3AV2-E RAS-B16N3KVP-E / RAS-16N3AVP-E RAS-B18J2KVSG-E / RAS-18J2AVSG-E RAS-B18S4KVPG-E / RAS-18S4AVPG-E

Ducted10

RAS-M07G3DV-E RAS-M07U2DVG-E RAS-M10G3DV-E RAS-M10U2DVG-E RAS-M13G3DV-E RAS-M13U2DVG-E RAS-M16G3DV-E RAS-M16U2DVG-E RAS-M22U2DVG-E RAS-M24U2DVG-E

Floor consoles2

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

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 units21

Now the harder half: proving what caused it

18 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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