Toshiba SMMS / SHRM VRF Aircon H02 Error Code
Confirm the listed meaning of Toshiba SMMS / SHRM VRF H02, note the unit that shows the code and its model, and match the service manual before diagnosis. Match the model first; same-looking codes can point to different rows.
What does Toshiba H02 mean?
Toshiba SMMS / SHRM VRF H02 is listed as compressor lockup detected and compressor lock in fault lists for more than one model family, including SHRM Advance MMY-SUG R32, R32 RAV Digital Inverter Series 1, and R32 RAV Super Digital Inverter 1ATW-E. This meaning comes from the manufacturer's own diagnostic material. Do not collapse this code across model families; use the model, series, or system type to choose the right row. Confirm the exact model, series, or signal row before accepting a parts quote.
What to do now
Use these steps to record evidence and match the installed model to its service manual before diagnosis or a repair quote.
Record H02 and match the service manual
Record H02 and stop there; the manufacturer gives no customer reset procedure. Arrange diagnosis with the matching service manual.
No manufacturer reset steps listed for H02
Capture the complete H02 error code and model stickers first. The manufacturer lists the meaning but no customer reset procedure; do not treat a generic power-cycle as manufacturer guidance.
Send these to us
H02 error code, a clear display photo, Toshiba SMMS / SHRM VRF indoor and outdoor model stickers, the controller, gateway, or unit that reported the code, operating mode and affected area, and any power or setting changes made after the code appeared
Choose the listing that matches your unit
The same code has more than one listed meaning. Match the model family, the system type and the unit that shows the code before approving parts.
| Code | What it means | What to check first |
|---|---|---|
| Toshiba SMMS-u / SMMS Infinity MMY-MUP VRF systems - confirm the complete regional model suffix / SHRM Advance MMY-SUG R32 | Compressor lockup detected | Match this meaning to your installed model and the unit that shows the code, then use the checks below. |
| R32 RAV Digital Inverter Series 1 / R32 RAV Super Digital Inverter 1ATW-E | Compressor lock | Match this meaning to your installed model and the unit that shows the code, then use the checks below. |
- Code
- Toshiba SMMS-u / SMMS Infinity MMY-MUP VRF systems - confirm the complete regional model suffix / SHRM Advance MMY-SUG R32
- What it means
- Compressor lockup detected
- What to check first
- Match this meaning to your installed model and the unit that shows the code, then use the checks below.
- Code
- R32 RAV Digital Inverter Series 1 / R32 RAV Super Digital Inverter 1ATW-E
- What it means
- Compressor lock
- What to check first
- Match this meaning to your installed model and the unit that shows the code, then use the checks below.
Guidance for your model
Notes that match the code to your exact model. Electrical, refrigerant, wiring, resistance and component checks are for a technician.
| Detail | What it says |
|---|---|
| Singapore / model note | Official Toshiba SMMS-u MMY-MUP service evidence. Toshiba Singapore lists cooling-only MMY-MUP...T8P-SG SMMS Infinity models, while this service manual covers European MMY-MUP...HT8P-E heat-pump variants. Confirm the complete model suffix and its local service manual before diagnosis or parts replacement. |
| Singapore / model note | Official Toshiba SVM-22072-1 row for SHRM Advance MMY-SUG R32 heat-pump and heat-recovery systems. The checked manufacturer page is regional rather than a Singapore product listing, so confirm the full model suffix and locally supplied service manual before diagnosis or parts replacement. |
| Singapore / model note | Official Toshiba A10-1901 row for the 50 Hz R32 RAV-GM2241 and RAV-GM2801 Digital Inverter family used with light-commercial indoor units. This regional source does not prove that every listed model is sold in Singapore; confirm the full model suffix and local service manual. |
- Detail
- Singapore / model note
- What it says
- Official Toshiba SMMS-u MMY-MUP service evidence. Toshiba Singapore lists cooling-only MMY-MUP...T8P-SG SMMS Infinity models, while this service manual covers European MMY-MUP...HT8P-E heat-pump variants. Confirm the complete model suffix and its local service manual before diagnosis or parts replacement.
- Detail
- Singapore / model note
- What it says
- Official Toshiba SVM-22072-1 row for SHRM Advance MMY-SUG R32 heat-pump and heat-recovery systems. The checked manufacturer page is regional rather than a Singapore product listing, so confirm the full model suffix and locally supplied service manual before diagnosis or parts replacement.
- Detail
- Singapore / model note
- What it says
- Official Toshiba A10-1901 row for the 50 Hz R32 RAV-GM2241 and RAV-GM2801 Digital Inverter family used with light-commercial indoor units. This regional source does not prove that every listed model is sold in Singapore; confirm the full model suffix and local service manual.
What to check before repair
The manufacturer's fault table gives the code's meaning, not a repair procedure. Capture evidence first; model-specific tests belong to the matching service manual.
| You can check | Technician should confirm |
|---|---|
| Photograph the complete H02 error code before taking any action. | Confirm H02 exactly and record which controller, gateway, or unit reported it. |
| Capture the Toshiba SMMS / SHRM VRF indoor and outdoor model stickers and identify which controller or unit reported it. | Match the indoor and outdoor model stickers, installed family, and reporting equipment to the source scope. |
| The manufacturer provides no customer reset procedure. Preserve the evidence and use the matching service manual for any system action. | Follow the matching service-manual procedure and keep measured test evidence before naming a failed part. |
- You can check
- Photograph the complete H02 error code before taking any action.
- Technician should confirm
- Confirm H02 exactly and record which controller, gateway, or unit reported it.
- You can check
- Capture the Toshiba SMMS / SHRM VRF indoor and outdoor model stickers and identify which controller or unit reported it.
- Technician should confirm
- Match the indoor and outdoor model stickers, installed family, and reporting equipment to the source scope.
- You can check
- The manufacturer provides no customer reset procedure. Preserve the evidence and use the matching service manual for any system action.
- Technician should confirm
- Follow the matching service-manual procedure and keep measured test evidence before naming a failed part.
Source-bounded repair decision
Toshiba SMMS / SHRM VRF H02 confirms the fault label the manufacturer lists, not a failed part or repair procedure. Match the installed model to its service manual and require measured diagnostic evidence before approving parts, settings, or refrigerant work.
Whether the reporting controller or unit and exact installed model are confirmed.
What the matching service-manual procedure and measured tests show.
Whether the proposed repair names the evidence for the failed part or condition.
Toshiba H02 questions
What does the Toshiba H02 error mean?
Can I fix a Toshiba H02 error myself?
Is it safe to keep running the aircon with an H02 error?
What causes a Toshiba H02 error?
Will a Toshiba H02 error need a repair or a full replacement?
What should I send a technician about a Toshiba H02 error?
Where to go next
Confirm the fault
Share the error code, model number and symptoms so we can assess the likely cause.
Not the right code?
Browse the full Toshiba list or check a few codes in the same fault category.
Read next
Use this quote-check guide only after the matching service manual identifies the diagnostic path.