The SMA Sunnyboy was sold in the UK largely post 2011 and is one of the most reliable inverters. The popular Sunny boy 3800 TL was one of the first Transformerless models to offer DMPP trackers and considerably less weighty than its predecessor a copper coiled inverter made for weight lifters and strong houses.
Check for obvious issues: Look for signs of overheating, loose connections, or damage to the inverter or cabling.
Verify proper operation: Make sure the inverter is receiving power from the grid and that the DC disconnect switch is turned on.
If you are unable to diagnose the fault yourself, it’s best to contact a Mr solar technician for further assistance. They will have the expertise and tools to safely troubleshoot and repair the inverter, Costs start at £99.
The most common issue is;
Description
The red LED flashes on the SB 3800, 4200/5000TLMS or SB 4200/5000TL HC inverter. The green and yellow LEDs are not relevant in this case.
Cause
At least one DC input is defective.
Corrective Measure; The inverter must be replaced. Please contact Mr Solar 01603 394104 for further investigation.
|
Event number |
Message, cause and corrective measures |
|---|---|
|
101 to 105 |
Grid fault The grid voltage or grid impedance at the connection point of the inverter is too high. The inverter has disconnected from the utility grid. Corrective measures:
|
|
202 to 206 |
Grid fault The utility grid has been disconnected, the AC cable is damaged or the grid voltage at the connection point of the inverter is too low. The inverter has disconnected from the utility grid. Corrective measures:
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|
401 to 404 |
Grid fault The inverter has disconnected from the utility grid. A stand-alone grid or a very large change in the power frequency was detected. Corrective measures:
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|
501 |
Grid fault The power frequency is not within the permissible range. The inverter has disconnected from the utility grid. Corrective measures:
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|
601 |
Grid fault The inverter has detected an excessively high proportion of direct current in the grid current. Corrective measures:
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|
701 |
Frq. not permitted > Check parameter The power frequency is not within the permissible range. The inverter has disconnected from the utility grid. Corrective measures:
|
|
1001 |
L/N swapped > Check connection The connection of L and N is swapped. Corrective measures:
|
|
1302 |
Waiting for grid voltage > Installation failure grid connection > Check grid and fuses L or N not connected. Corrective measures:
|
|
1501 |
Reconnection fault grid The changed country data set or the value of a parameter you have set does not correspond to the local requirements. The inverter cannot connect to the utility grid. Corrective measures:
|
|
3301 to 3303 |
Unstable operation There is not enough power at the DC input of the inverter for stable operation. The inverter cannot connect to the utility grid. Corrective measures:
|
|
3401 to 3407 |
DC overvoltage > Disconnect generator Overvoltage at the DC input. This can destroy the inverter. This message is signalized additionally by rapid flashing of the LEDs. Corrective measures:
|
|
3501 |
Insulation failure > Check generator The inverter has detected a ground fault in the PV array. Corrective measures:
|
|
3601 |
High discharge curr. > Check generator The leakage current of the inverter and the PV array is too high. There is a ground fault, a residual current or a malfunction. The inverter interrupts feed-in operation immediately after exceeding a threshold. When the fault is eliminated, the inverter automatically reconnects to the utility grid. Corrective measures:
|
|
3701 |
Resid.curr.too.high > Check generator The inverter has detected a residual current due to temporary grounding of the PV array. Corrective measures:
|
|
3801 |
DC overcurrent > Check generator Overcurrent at the DC input. The inverter briefly interrupts feed-in operation. Corrective measures:
|
|
3901 to 3902 |
Waiting for DC start conditions > Start cond. not met The feed-in conditions for the utility grid are not yet fulfilled. Corrective measures:
|
|
4301 |
Electric arc detected > Check DC generator The inverter has detected an electric arc. The inverter interrupts grid feed-in and cannot connect to the utility grid. Corrective measures:
|
|
6512 |
Minimum operating temperature not reached The inverter will only recommence grid feed-in once the temperature has reached at least −25°C. |
|
6701 to 6702 |
Communication disturbed Error in the communication processor, the inverter continues feeding in, however. The cause must be determined by the Service. Corrective measures:
|
|
6803 |
Self-diagnosis > Input A defective Corrective measures:
|
|
6903 |
Self-diagnosis > Input B defective Corrective measures:
|
|
7106 |
Update file defect. The update file is defective. The update failed. The inverter continues to feed in. |
|
7110 |
No update file found No new update file was found on the SD memory card. The update failed. The inverter continues to feed in. |
|
7112 |
Update file successfully copied |
|
7113 |
The memory card is full or write-protected |
|
7303 |
Update main CPU failed The cause must be determined by the Service. Corrective measures:
|
|
7324 |
Wait for update conditions The testing of the update conditions was not successful. The firmware update package is not suitable for this inverter. Corrective measures:
|
|
7331 |
Update transport started Update file is being copied. |
|
7332 |
Update transport successful Update file was copied successfully to the inverter’s internal memory. |
|
7333 |
Update transport failed Update file could not be copied to the inverter’s internal memory. In the event of connection with the inverter via WLAN, a poor connection quality can be the cause. Corrective measures:
|
|
7340 |
Update communication failed |
|
7347 |
Incompatible file The configuration file is not suitable for this inverter. Corrective measures:
|
|
7348 |
Incorrect file format The configuration file is not of the required format or is damaged. Corrective measures:
|
|
7350 |
Transfer of a configuration file has started The configuration file is being transferred. |
|
7351 |
Update WLAN The inverter is updating the WLAN module. |
|
7352 |
Update of WLAN not successful The update of the WLAN module failed. Corrective measures:
|
|
7353 |
Update time zone database The inverter is updating the time zone database. |
|
7354 |
Update of time zone database not successful The update of the time zone database failed. Corrective measures:
|
|
7355 |
Update WebUI The inverter is updating the inverter user interface. |
|
7356 |
Update of the WebUI not successful The update of the inverter user interface failed. Corrective measures:
|
|
7619 |
Communication fault with meter unit > Check communication to meter The inverter is not receiving any data from the energy meter. Corrective measures:
|
|
8003 |
Active power limited derating The inverter has reduced its power output for more than ten minutes due to excessive temperature. Corrective measures:
|
|
8206 |
Electr. arc detected > Please confirm by tapping The inverter has detected an electric arc and was recommissioned after a disconnection. By tapping, you are confirming that you have repaired any possible damage to PV modules, DC conductors or plugs in the PV system. Corrective measures:
|
|
8503 |
Self-diagnosis > Input C defective Corrective measures:
|
|
8708 |
Timeout in communication for active power limitation Communication to the system control absent. Depending on the fall-back setting, either the last received values will be retained or the active power will be limited to the set percentage value of the inverter nominal power. Corrective measures:
|
|
8801 to 8803 |
No display No information can be shown on the display. |
|
9002 |
SMA Grid Guard code invalid The SMA Grid Guard code entered is incorrect. The operating parameters are still protected and cannot be changed. Corrective measures:
|
|
9003 |
Grid parameter locked Changes to the grid parameters are now blocked. In order to be able to make changes to the grid parameters, from now on you must log in using the SMA Grid Guard code. |
|
9005 |
Changing of grid parameters not possible > Ensure DC supply This error can have the following causes:
Corrective measures:
|
|
9202 |
SPS AC overvoltage An AC source has been connected to the socket connection for secure power supply operation. Corrective measures:
|
|
9203 |
Short circuit in the SPS power outlet The maximum initial load has been overshot or the appliance’s initial current is above the maximum permissible load current of the connection for secure power supply operation for more than 5 s. Corrective measures:
|
|
10110 |
Time synchronization failed: [x] No time information could be called up from the set NTP server. Corrective measures:
|
|
10248 to 10249 |
Load reduced through device reduction or increase of query interval The network is busy. Data exchange between the devices is not at an optimum and is greatly delayed. Corrective measures:
|
|
10250 |
[Interface]: package error rate [ok / high] The package error rate has changed. If the package error rate is high, the network is overloaded or the connection to the network switch or DHCP server (router) is disturbed. Corrective measures if the package error rate is high:
|
|
10251 |
[Interface]: communication status goes to [OK / Warning / Error / Not connected] The communication status to the network switch or DHCP server (router) has changed. An additional error message may be displayed. |
|
10252 |
[Interface]: communication disrupted There is no valid signal on the network line. Corrective measures:
|
|
10253 |
[Interface]: connection speed goes to [100 Mbit / 10 Mbit] The data transfer rate has changed. The cause for the status [10 Mbit] can be a defective plug, a defective cable or the pulling or plugging of the network connector. Corrective measures if the status is [10 Mbit]:
|
|
10254 |
[Interface]: duplex mode goes to [Full / Half] The duplex mode (data transfer mode) has changed. The cause for the status [Half] can be a defective plug, a defective cable or the pulling or plugging of the network connector. Corrective measures if the status is [Half]:
|
|
10255 |
[Interface]: Network load OK The network load has returned to a normal range after being busy. |
|
10282 |
[User group]-Login via [protocol] locked After several incorrect login attempts, login has been blocked for a limited time. In this case, the User login will be blocked for 15 minutes, the Grid Guard login for 12 hours. Corrective measures:
|
|
10283 |
WLAN module faulty The WLAN module integrated in the inverter is defective. Corrective measures:
|
|
10284 |
No WLAN connection possible The inverter does not currently have a WLAN connection to the selected network. Corrective measures:
|
|
10285 |
WLAN connection established Connection to the selected WLAN network has been established. |
|
10286 |
WLAN connection lost The inverter has lost WLAN connection to the selected network. Corrective measures:
|
|
10339 |
Webconnect enabled The inverter can communicate with Sunny Portal without an additional SMA communications product (e.g. Cluster Controller). |
|
10340 |
Webconnect disabled The Webconnect function has been switched off. This means that the inverter can not communicate with Sunny Portal without an additional SMA communications product (e.g. Cluster Controller).
|
|
10341 |
Webconnect error: no connection It is likely that there is an error in the network settings. Corrective measures:
|
|
10343 |
Webconnect error: Default gateway not configured It is likely that there is an error in the network settings. Corrective measures:
|
|
10344 |
Webconnect error: DNS server not configured It is likely that there is an error in the network settings. Corrective measures:
|
|
10345 |
No reply to DNS request It is likely that there is an error in the network settings. Corrective measures:
|
|
10346 |
SIP proxy DNS resolution failed It is likely that there is an error in the network settings. Corrective measures:
|
|
10347 |
Stun server DNS resolution failed It is likely that there is an error in the network settings. Corrective measures:
|
|
10348 |
Webconnect error: No reply to request to STUN server It is likely that there is an error in the network settings. Corrective measures:
|
|
10349 |
Webconnect error: No reply to SIP option packs It is likely that there is an error in the network settings or a Sunny Portal maintenance message is present. Corrective measures:
|
|
10350 |
Webconnect error: Registration rejected by SIP registrar It is likely that there is an error in the network settings. Corrective measures:
|
|
10351 |
Unknown SIP registry It is likely that there is an error in the network settings. Corrective measures:
|
|
10352 |
Webconnect error: Faulty communication It is likely that there is an error in the network settings or a Sunny Portal maintenance message is present. Corrective measures:
|
|
10353 |
Webconnect error: registration of the SIP registry has not responded It is likely that there is an error in the network settings or a Sunny Portal maintenance message is present. Corrective measures:
|
|
27107 |
Update file OK The update file is suitable for this inverter and its components and is fully available for the next update step. |
|
27108 |
Memory card is being read The storage medium is being read. |
|
27109 |
No new update on the memory card A new update file was not found on the storage medium. |
|
27301 |
Update communication The inverter is updating the communication component. |
|
27302 |
Update main CPU The inverter is updating the inverter component. |
|
27312 |
Update completed The inverter has successfully completed the update. |
|
27331 |
Update transport started The inverter has successfully started the update. |
|
27332 |
Update transport successful The update file has been successfully transferred to the communication component. |
|
29001 |
Inst. code valid The entered Grid Guard code is valid. Protected parameters have now been unlocked and you can adjust the parameters. The parameters will be automatically locked again after ten feed-in hours. |
|
29004 |
Grid parameters unchanged Changing the grid parameters is not possible. |
