RENOGY 700W 12V PURE SINE WAVE INVERTER Inverter Fan Running Constant
| CONF | DIAGNOSIS | PART MATCH | ACTION |
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85%
CONF
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Main Control PCB Assembly
The fan-drive circuit on the main PCB utilizes a thermal sensor and a switching transistor to manage heat dissipation. A constant-run symptom indicates that the thermal regulation logic has been bypassed, likely due to a shorted switching MOSFET or a failed NTC thermistor that is incorrectly reporting temperatures exceeding the 104°F threshold to the CPU.
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CHECK PRICE
#CommissionsEarned
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15%
CONF
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Secondary Circuit / Wiring Check
Inspect wiring harness.
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CHECK PRICE
#CommissionsEarned
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DIY Repair Guide
Watch exactly how to replace the Main Control PCB Assembly.