Frequently Asked Questions
This FAQ section answers questions about common solar system problems and provide a list of Error Codes and DIY solutions.
WARNING: High Voltage Risk
Electrical work should be performed by qualified technicians only.
Common Problems
Most residential inverters require battery power to run. First check if the battery has power or currently charging through solar panels or the grid.
Should there be power in the battery proceed to manually shut down all equipment for at least 60 seonds and then restart the system.
The fault may be due to a DC input damage on the inverter therefore it will not receive power from the battery. This fault requires workshop assistance.
Should the error persist please contact us for a site visit.
1. Check if the PV Breaker is switched on or not damaged.
Check other electrical connections will require a qualified export
2. The PV charge card/MPPT may have been damaged and will need to be replaced.
1. Check battery health and age
Sold: Replace battery if older than 5 years or add more capacity
2. Check your load on the inverter screen and compare with the battery size
Solution: Reduce load to match system size
3. Output short circuited or parasitic loads
Solution: Check for faulty adaptors and bulbs. Consult a an electrician to locate all loads
In general a small system does not usually deliver sufficient run time.
Error Codes
Fan is locked.
This error occurs when the cooling fans are stuck due to an obstruction or manufacturing error.
Solution:
The inverter needs to be opened by a qualified technician to perform a minor repair.
Over temperature. Switch off inverter and check the following:
1. Is inverter installed too close to the wall or in an enclosure without ventilation.
2. Check if inverter fans are not locked
3. In high temperature scenarios, switch off the system completely
Battery Voltage Too High
Check if the PV voltage is within specified parameters for the inverter.
Battery Low
The battery voltage is below the operating voltage for the inverter, typically less than 45V. This is mainly caused by incorrect parameters or lack of communication between the battery and inverter systems.
Recommended Solutions
1. Recharge battery or leave system to charge until the voltage recovers then restart the system
2. Check if the settings for cutoff are correct and within the range of both the battery and inverter
3. Connect a communication cable if battery and inverter are compatible
4. Reduce your load to match the system size especially on cloudy days or use Smart Geyser switch to automate load management
5. Add more battery storage with a new battery
Overload
Shut down the inverter, reduce the load and switch it back on.
Bus soft start failed. Internal component failure.
Request a repair quote.
PV voltage is over limit.
Solution
Reduce the voltage to match the range of the inverter.
Most inverter errorrs will clear with a hard reset of the system. Use the following steps to reset your inverter:
1. Shut down the inverter using the switch
(The inverter may continue to run after switching it off)
2. Switch the PV Breaker into off position
3. Power down the battery with the battery switch
4. Cut off AC supply to the inverter by swtiching off the AC Breaker (usually 32A)
To Power on the inverter restart the cycle by switching on the inverter, followed by the battery and the PV and AC breaker.
Advanced Settings
51.2V Batteries
Bulk: 56.4V
Float: 54.0V
Cutoff: 45.0V
Max Charge Current: 50A
48V Batteries
Bulk: 53.2V
Float: 52.5V
Cutoff: 43.5V
25.6V
Bulk: 28.0V
Float: 27.0V
Cutoff: 23.0V
Bulk: Program 26, Float: Program 27, Cutoff: Program 29
For batteries and inverters that have inteoperability you are advised to use the communication cable supplied with the battery and set battery type on Setting 05.
Check if the communication instructions are CAN or RS485 and use the relevant port.
Please contact us for specific battery and inverter type settings.
This setting determines which power source is mainly use on consumption by the loads.
SUB: Solar Utility Battery
Choose this option if you prefer to use most of the power generated by your panels during the day with the uitility and battery as the fallback. Utilizing solar to the maximum reduces your electricity bill.
USB: Utility Solar Battery
The ulitility will be the first choice to power your loads and solar and battery become the backup options. The system is mostly idle and is preserved for emergency situations. This improves system durability and availability when needed.
SBU
The utility is the last resort where Solar is not available and the battery has depleted to critical levels. The setup makes maximum use of the system and produces the most savings on the utility bill.
Maximum charge current is the total Solar charge current + Utility charge current.
Check your battery specification for Maximum charging current to ensure it will not be exceeded as this leads to battery damage. Typical charge currents are 50A, 75A and 100A.
Choose the battery type and brand you have for the best perfomance and warranty vailidity. If unavaible select ÜSER" and refer to Battery Voltage Settings above.
This setting helps you choose between the two chargers in your inverter.
CSO: Solar will charge the battery and utility only charges if solar is unavailableSNU: Solar and utility will charge the battery at the same time
OSO: Solar will be the only charger
Most inverter will allow more power than they can produce to pass through the inverter to the loads. This setting is criticial as not enabling the bypass results in overload damage to the inverters.
BYD: Bypass Disable is the default selection and should be changed if the loads are high
BYE: Enable overload bypass to ensure load spikes do not damage the inverter components
Support
We offer both online and on-site support for any installation or equipment type.
Our service fees are as follows:
Online Support: USD$20
Duration: 30 Minutes
On Site Support: USD$40
Duration: 1 Hour
*Terms & Conditions Apply
This platform provides all information an average user can apply on their system. Solar system run on high voltage as such some operations should be done strictly by qualified personnel.
We travel to sites across the country for technical support. However all remote sites should go through an online support stage to ensure the problem is correctly defined.
Travel outside Harare attracts a mileage fee.
Should a site issue remoain unresolved online our team will schedule a site visit. The cost for the visit does not add up to the online support bill.
For on site inspection that are not resolved, the team will schedule a second visit and if not resolved and recommendations do not change the statue, we will refund the customer in full.
Yes all our repair and site visit work will be invoiced.
Deye Support
This section deals with support and common issues for Deye brand products.
Select DEYE under battery type.
Below are download links for Deye firmware
If you are encountering an F30 error on your Deye inverter, try the following steps:
-
Restart the Inverter: Switch off the inverter, battery, and PV, wait at least 5 minutes, and restart in this order: Battery, then Inverter.
-
Restart Procedure: Some users have success restarting the unit 3 times to clear the error.
-
Check Grid Connection: Ensure the grid voltage is stable and within the acceptable range.
-
Verify Firmware: The error can sometimes be resolved with a firmware patch. Contact your installer to check if your inverter needs an update.
-
Restore Factory Settings: As a last resort, try resetting the inverter to factory settings (password is often 9999).
-