Deyedreamer
New Member
Hi, i have a Sunny Boy SB1700 Grid Inverter approx 12 years old. (Installed 2011)
It has 10 x Suntech STP190s Solar Panels.
The inverter is displaying a fault saying "Waiting".
I noticed the input DC voltage at the inverter is 170VDC. (Confirmed with a multi meter)
The specs on the panels say Optimum Operating Voltage = 33.1v
Calculation: 10 x 33.1v = 331 volts.
Am I right to assume the inverter is not switching on due to low DC input voltage of 170VDC?
As the panels are 12 years old (installed in 2011), could the panels have degradated over time and is now below the DC input voltage minimum of 180v.
See images below.
My thoughts are that 1 panel has failed bringing the whole system down to 170VDC.
Should the panels be replaced due to their age.
Any advice appreciated.
Thanks.
It has 10 x Suntech STP190s Solar Panels.
The inverter is displaying a fault saying "Waiting".
I noticed the input DC voltage at the inverter is 170VDC. (Confirmed with a multi meter)
The specs on the panels say Optimum Operating Voltage = 33.1v
Calculation: 10 x 33.1v = 331 volts.
Am I right to assume the inverter is not switching on due to low DC input voltage of 170VDC?
As the panels are 12 years old (installed in 2011), could the panels have degradated over time and is now below the DC input voltage minimum of 180v.
See images below.
My thoughts are that 1 panel has failed bringing the whole system down to 170VDC.
Should the panels be replaced due to their age.
Any advice appreciated.
Thanks.
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