What does Mitsubishi Electric 7113 mean?
Mitsubishi Electric City Multi 7113 is listed as lossnay function or leader-follower setting error and function-setting fault from an improper CNTYP connection in fault lists for more than one model family, including Lossnay RVXT3 heat-recovery ventilation. 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 before customer action or a parts quote.
Stop using the unit if 7113 returns
If the manufacturer's listing for your model family applies to 7113, do not reset it; record the code and arrange diagnosis. Check your own model's listing before acting on another model family.
Match the 7113 family before taking action
Capture the 7113 display and model sticker first. For the manufacturer's listing that matches your model family, record the four-digit code, LED1 blink count, controller model, and full Lossnay model. Do not open the ventilator or keep restarting it; have qualified Mitsubishi Electric service use the matching U324 diagnostic row. The same code can mean something different in another model family, so confirm the model before taking another action. Do not treat a generic power-cycle as a manufacturer reset procedure.
Send these to us
7113 error code, a clear display photo, Mitsubishi Electric City Multi model stickers, affected rooms, operating state when the code appeared, and recent installation, PCB, or model-pairing work
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 |
|---|---|---|
| Lossnay RVXT3 heat-recovery ventilation | Lossnay function or leader-follower setting error | Match this meaning to your installed model and the unit that shows the code, then use the checks below. |
| City Multi VRF outdoor-unit diagnostics | Function-setting fault from an improper CNTYP connection | Match this meaning to your installed model and the unit that shows the code, then use the checks below. |
- Code
- Lossnay RVXT3 heat-recovery ventilation
- What it means
- Lossnay function or leader-follower setting error
- What to check first
- Match this meaning to your installed model and the unit that shows the code, then use the checks below.
- Code
- City Multi VRF outdoor-unit diagnostics
- What it means
- Function-setting fault from an improper CNTYP connection
- 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 |
|---|---|
| Diagnostic note | Record the four-digit code, LED1 blink count, controller model, and full Lossnay model. Do not open the ventilator or keep restarting it; have qualified Mitsubishi Electric service use the matching U324 diagnostic row. |
| Diagnostic note | Check CNTYP5, CNTYP4, CNTYP2, and INV-board CNTYP connectors, SW5-3 to SW5-6 settings, and inter-board wiring. |
| Singapore / model note | Official current Lossnay RVXT3 service row. Mitsubishi Electric Singapore documents Lossnay ventilation in its local City Multi material, but the installed full model and project documentation must still match this regional handbook. |
| Singapore / model note | Official Mitsubishi Electric Singapore City Multi PDF page 9, primary fault-code table for the outdoor unit. Confirm the installed City Multi equipment and the unit reporting the code before parts replacement. |
- Detail
- Diagnostic note
- What it says
- Record the four-digit code, LED1 blink count, controller model, and full Lossnay model. Do not open the ventilator or keep restarting it; have qualified Mitsubishi Electric service use the matching U324 diagnostic row.
- Detail
- Diagnostic note
- What it says
- Check CNTYP5, CNTYP4, CNTYP2, and INV-board CNTYP connectors, SW5-3 to SW5-6 settings, and inter-board wiring.
- Detail
- Singapore / model note
- What it says
- Official current Lossnay RVXT3 service row. Mitsubishi Electric Singapore documents Lossnay ventilation in its local City Multi material, but the installed full model and project documentation must still match this regional handbook.
- Detail
- Singapore / model note
- What it says
- Official Mitsubishi Electric Singapore City Multi PDF page 9, primary fault-code table for the outdoor unit. Confirm the installed City Multi equipment and the unit reporting the code before parts replacement.
What to check before repair
Use this split to separate safe evidence capture from the tests a technician should prove before quoting parts.
| You can check | Technician should confirm |
|---|---|
| Before taking any action on 7113, take a clear display photo. | Confirm the exact model pairing behind 7113. |
| Capture the Mitsubishi Electric City Multi model sticker and identify which controller or unit reported the code. | Check jumper caps, capacity settings, paired indoor/outdoor model compatibility, and recent board changes. |
| If the manufacturer's listing for your model family applies to your unit, record the four-digit code, LED1 blink count, controller model, and full Lossnay model. Do not open the ventilator or keep restarting it; have qualified Mitsubishi Electric service use the matching U324 diagnostic row. Confirm the exact model family before taking a different customer action. | Only quote parts after configuration and communication checks are ruled out. |
- You can check
- Before taking any action on 7113, take a clear display photo.
- Technician should confirm
- Confirm the exact model pairing behind 7113.
- You can check
- Capture the Mitsubishi Electric City Multi model sticker and identify which controller or unit reported the code.
- Technician should confirm
- Check jumper caps, capacity settings, paired indoor/outdoor model compatibility, and recent board changes.
- You can check
- If the manufacturer's listing for your model family applies to your unit, record the four-digit code, LED1 blink count, controller model, and full Lossnay model. Do not open the ventilator or keep restarting it; have qualified Mitsubishi Electric service use the matching U324 diagnostic row. Confirm the exact model family before taking a different customer action.
- Technician should confirm
- Only quote parts after configuration and communication checks are ruled out.
Configuration or parts decision
Mitsubishi Electric City Multi 7113 can often be corrected by matching settings, model pairing, or board configuration. Parts should be quoted only after setup is confirmed.
Wrong capacity or pairing settings can mimic a hardware fault.
Recent installation, PCB replacement, or mixed-model work changes the first check.
Once configuration is confirmed, the diagnosis can move to wiring or board inputs.
Mitsubishi Electric 7113 questions
What does the Mitsubishi Electric 7113 error mean?
Can I fix a Mitsubishi Electric 7113 error myself?
Is it safe to keep running the aircon with a 7113 error?
What causes a Mitsubishi Electric 7113 error?
Will a Mitsubishi Electric 7113 error need a repair or a full replacement?
What should I send a technician about a Mitsubishi Electric 7113 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 Mitsubishi Electric list or check a few codes in the same fault category.
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Use these if the quote mentions the parts, checks, or repair path this code points to.