9037 on a SMA Solar Technology AG Sunny Boy Smart Energy: The PV module switches did not connect the PV module
Short answer
On a SMA Solar Technology AG inverter, 9037 means: The PV module switches did not connect the PV module. The inverter stops until the fault clears or is reset. An engineer is needed to fix the cause.
Reviewed 24 September 2026 · 1 source
What it means
The manual says: The PV module switches did not connect the PV module.
Part involved: rapid shutdown / module-level switches.
When it shows: The PV module switches did not connect the PV module.
Likely causes:
- SMA corrective measures: Check the functionality of the SunSpec-compliant PV module switches. =====PAGE 100=====.
Is it safe?
| Does the inverter stop? | Yes |
|---|---|
| Engineer needed? | Yes |
The inverter stops until the fault clears or is reset.
Resetting itself: unknown.
Manual reset: See engineer checks.
What you can check
- Read the event number and message in the SMA Energy app / Sunny Portal (ennexOS) or the inverter's web interface and note the date/time for your installer. A red LED on the inverter means an event has occurred.
- Contact your installer.
What the engineer will check
- Check rapid-shutdown operating mode, function and standby voltage of SunSpec PV module switches; contact SMA Service for 9038.
Who to ask for: MCS PV installer.
Certification: Qualified electrician (BS 7671; MCS-certified PV installer for work on the PV array/DC side).
What you might notice
Sources
- Operating manual SUNNY BOY SMART ENERGY 3.6/4.0/5.0/6.0/8.0/9.9 ↗ · SBSExx-50-BE-en-12 Version 1.2 · page 99 · Reviewed 24 September 2026
A code explains what the controller detected, not a confirmed root cause.
Reviewed: 24 September 2026