Solar Lattice

Fault codes › Solis › Solis S6-EH1P(3.8-11.4)K-H-US

Solis S6-EH1P 12Power-FAULT

Code
12Power-FAULT
Shown as
12V power supply fault
Page
74
ID
fc:solis-s6-eh1p-h-us-12powerfault
IRI
https://solarlattice.org/kb/fc/solis-s6-eh1p-h-us-12powerfault
Status
active
Also known as
12Power-FAULT, 12powerfault, Solis 12Power-FAULT, 12V power supply fault
Category
Inverters
Class fault drafted · lead
Production not stated
Clears after a manual reset drafted · lead

Decoded

Reports auxiliary supply undervoltage; may indicate internal power supply fault; do: inverter restart, grounding conductor check.

What can be behind Auxiliary supply undervoltage

Failure modes that present as the reported condition, and the tests that tell them apart.

Defined in

The manufacturer's own cause and corrective text is not reproduced here.

Same condition on other equipment

Solis
Solis 3P-5G-US 12Power-FAULT, Solis RHI-1P-HV 12Power-FAULT, Solis S6-EH2P 12Power-FAULT, Solis S6-EH3P30-60K 12Power-FAULT, Solis S6-EH3P75-150K 12Power-FAULT

Same code in other families

Claims

defined_in

c1 drafted · lead Solis_Manual_S6-EH1P(3.8-11.4)K-H-US_v.5.6_20260413

reports

c2 drafted · lead Auxiliary supply undervoltage

indicates

c3 drafted · lead Internal power supply fault

mitigated_by

c4 drafted · lead Inverter restart

c5 drafted · lead Grounding conductor check

Also check wiring for leakage to ground.

has_event_class

c6 drafted · lead Fault (device stops or needs intervention)

has_recovery

c7 drafted · lead Manual reset (operator restarts or acknowledges)

Restart first; contact installer if persistent.

review note: support check: partial - Restart or contact installer is stated, but clearing by manual reset is only implied.

applies_to

c8 drafted · lead Solis S6-EH1P(3.8-11.4)K-H-US

Data