Solar PV Inspection, Maintenance and Testing
SOLAR PV EXPERTS SINCE 2010
All electrical systems need periodic inspection and testing. Solar PV systems are no different. For PV systems mounted on buildings, the recommended inspection interval will depend on the type and use of the building.
Typical reasons for inspection, testing or maintenance include;
- An obvious fault has developed – for example an inverter has stopped, working or a panel is damaged
- Concerns about reduced returns from your system
- Periodic inspection or routine maintenance
- A change in system ownership to your solar PV installation.
- Water ingress
- To safeguard your investment
RESIDENTIAL SOLAR PV
COMMERCIAL SOLAR PV
SOLAR PV EXPERTS
What’s the Risk?
In the vast majority of cases, problems won’t occur. Even when they do, the most common problem is reduced system output, undermining your investment returns. Very occasionally however, faults lead to fire or shock risk.
Faults occasionally develop in even the best installed and properly specified PV systems. The most obvious fault is usually an inverter failure, which generally is spotted pretty quickly. However, a loss of 1 or 2 strings in a larger system can be much more difficult to spot, can go unnoticed for months and lead to a significant loss in income.
SOLAR PV REPAIR
SOLAR PV REPLACEMENT
SOLAR PV UPGRADES AND BATTERY STORAGE
Monitoring and Fault Alarms
INVERTER INSTALLS WITH MONITORING INCLUDED
While not an alternative to periodic system verification, an effective remote monitoring and fault reporting system will provide early warning of drops in performance or faults.
Most well designed larger systems should include such a facility. Retrofitting is a practical and effective option where not installed at the outset.
Common Solar PV Faults
EXPERTS IN SOLAR PV FAULT DIAGNOSTS AND REPAIR
Generally if it is midday and your inverter is showing a red light instead of a green, you have a problem with your solar PV inverter. However, below we have listed a few of the really common faults we have come across.
- Fronius: Fronius STATE codes beginning with 4 are error states that require the intervention of a technician. Please contact us for assistance.
- Eversolar: A common error with Eversolar inverters is the “Relay Check Fail” warning. If you see this message more than likely your inverter will broken and will need replacing.
- ABB/Power One: Error E031, this again is a relay failure, and your inverter will probably need replacing.
- Power-One: Call it a Riso fault. In Fronius inverters, it is error code 447. If your solar inverter is complaining of this fault then either the inverter is at fault, or much more likely there is something wrong with the d.c. cables between the solar panels and the inverter (for example fault MC4 plug connection getting moisture in). With this fault we will test the electrical connections at the isolators to identify the fault)
We have been servicing Solar PV and now Battery storage since 2010. We have in depth experience of having worked on over 4000 systems. From installing a Solar PV system, upgrading systems, changing faulty systems, battery storage solutions Goodwin Electrical in Plymouth are there to meet all your Solar PV needs.
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