No Site Communication

No communication with Power Optimizer 

Power Optimizers provide homeowners with panel-level monitoring on the Solar Edge online portal. They are small devices that are attached to the back of each solar panel. If they lose communication with the inverter, then the panel they are attached to will not show any generation. An alert will appear in My Solar Edge, and the affected panel will show with an exclamation mark against it in the Layout page (as per the image on the left).  The process to rectify this is as follows: 

1. Raise a new case with Solar Edge. We will create a new ticket detailing the issue to Solar Edge, the manufacturer. 
2. Solar Edge will respond, usually within 72 hours, suggesting the next steps. 
3. More often than not, Solar Edge will recommend replacing the Power Optimizer. If they suggest this, they will send a new Optimizer to us here at Naked Solar, or to your local installer. This can be a matter of weeks rather than days depending on the optimizer type and how busy Solar Edge are. 
4. Once the Optimizer has been delivered, we will be in touch to schedule the works if you have agreed for us to carry them out. We would also organise scaffolding if required to access the panel and optimiser in question. 
5. Once replaced, we will send the old optimizer back to Solar Edge. 

Inverter Production Issue Detected 

If there is a problem with a Solar Edge inverter, most of the time the generic message of Inverter Production Issue Detected is displayed on the monitoring portal, and the Layout page will show an exclamation mark on the inverter. The process to rectify this is as follows: 

1. Try performing a power cycle. If unsure of this procedure, see it on our Maintenance Homepage.
2. Raise a new case with Solar Edge. We will create a new ticket detailing the issue to Solar Edge, the manufacturer. 
3. Solar Edge will respond, usually within 72 hours, suggesting the next steps.
4. Solar Edge may ask for tests to be carried out on the inverter if necessary. Often however, Solar Edge will recommend replacing the inverter. If they suggest this, they will send a new inverter to us here at Naked Solar, to your local installer, or to you if you prefer. This can be a matter of weeks rather than days depending on the inverter type and how busy Solar Edge are.
5. If being replaceed, once the inverter has been delivered, we will be in touch to schedule the works if you have agreed for us to carry them out. If you have another installer to do this for you, now is the time to let them know.  
6. Once replaced, we will send the old inverter back to Solar Edge, or your local installer would do this. 

DC Isolation

RISO (DC Isolation) faults are complex faults that can be caused by a variety of things. Most commonly they are caused by a slight ingress of moisture somewhere on the DC line between panels and the inverter. This can be at the inverter inputs, along the cabling somewhere, at the connectors between panels, optimisers (if installed), or on the panels themselves.  

Steps: 

1. Determine if this is indeed wet weather related. Does the fault only occur after rain and/or strong winds? Does the fault clear after a period of dryness? 
2. Please provide photos of your system as it currently is, and we will review these. It may be that we can see potential issues from these pictures and ask you to rectify them without needing to visit. 
3. Follow a procedure on your Solar Edge inverter and take a photo of the end result. If your Solar Edge inverter has a screen on it,  Go to this link and follow the procedure titled “Locating the Leakage within a String Using the Inverter LCD Display”, beginning towards the bottom of page. Please follow points 1-4 and take a picture of the display after step 4. This identifies how far along the system the fault is occurring and gives a good starting point for an investigation.. 
4. At this point there may be a need to investigate physically, either from the ground level, or on the roof. 

In addition to the usual requested photos, if possible, please provide photos of any cable junction boxes that are outside or in places susceptible to water (in a barn or leaky garage, for example). Also, of cabling that is visibly damaged, frayed, or similar.