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  <title id="t">Jackery F7 troubleshooting decision flow</title>
  <desc id="d">Decision flow for Jackery error F7 during solar charging, checking weather, shading and glass, then the 60 V open-circuit voltage ceiling and the reset gesture.</desc>
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  <text class="qt" x="32" y="38" style="font-size:16px">Jackery F7 - decision flow</text>
  <text class="cap" x="32" y="58">F7 is the DC charging module (PV) fault. Jackery's own F7 articles treat sunlight as the first suspect, not the hardware.</text>

  <rect class="start" x="330" y="84" width="240" height="46" rx="10"/>
  <text class="t" x="450" y="112" text-anchor="middle">F7 during solar charge</text>

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  <rect class="q" x="270" y="156" width="360" height="56" rx="10"/>
  <text class="qt" x="450" y="179" text-anchor="middle">Is the panel in full, direct sun?</text>
  <text class="at" x="450" y="199" text-anchor="middle">Clear or cloudy - shaded - charging through glass?</text>

  <path class="ln" d="M270 184 L140 184 L140 244"/>
  <path class="ln" d="M630 184 L760 184 L760 244"/>
  <text class="lb" x="152" y="206">LOW LIGHT / SHADED</text>
  <text class="lb" x="646" y="206">FULL SUN, STILL FAULTS</text>

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  <text class="at" x="48" y="268" font-weight="700">This is expected behaviour</text>
  <text class="at" x="48" y="292">Weak light drops the panel voltage</text>
  <text class="at" x="48" y="310">below what the charger needs, which</text>
  <text class="at" x="48" y="328">is what raises F7.</text>
  <text class="at" x="48" y="354">Charging resumes by itself once</text>
  <text class="at" x="48" y="372">sunlight is adequate. Move the panel</text>
  <text class="at" x="48" y="386">outdoors, unobstructed.</text>

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  <text class="at" x="636" y="268" font-weight="700">Check the array voltage</text>
  <text class="at" x="636" y="292">Measure open-circuit voltage (Voc)</text>
  <text class="at" x="636" y="310">at the panel end.</text>
  <text class="at" x="636" y="336">The manual states a 60 V maximum</text>
  <text class="at" x="636" y="354">DC input. Too many panels in series</text>
  <text class="at" x="636" y="372">exceeds it on a cold morning.</text>

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  <rect class="q" x="300" y="424" width="300" height="52" rx="10"/>
  <text class="qt" x="450" y="446" text-anchor="middle">Still faulting with a healthy array?</text>
  <text class="at" x="450" y="465" text-anchor="middle">Then treat it as a one-off fault</text>

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  <text class="at" x="256" y="522" font-weight="700">Reset: POWER + USB for 5 s</text>
  <text class="at" x="256" y="539">Pro series use DISPLAY + USB for 10 s (display shows 8888)</text>

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  <text class="em" x="716" y="520">Do not exceed 60 V</text>
  <text class="cap" x="716" y="537">on the DC input</text>
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