INV NTC is disconnected or abnormal
Also displayed as F32 on some models.
Fault — the inverter cuts its output and the red LED stays solid until the fault is cleared.
The exact meaning depends on your model:
Also applies to:IVPS5048P1G1-LVIVPS7548P2G1IVPS10048P2G1IVPS3.5~10kVA-USIVPS3-5-10KVA
INV NTC is disconnected or abnormal — The inverter temperature sensor (NTC) is disconnected or abnormal.
Cause: The inverter temperature sensor wiring is disconnected or the sensor failed.
Contact the repair center.
Source: ivps3524p1g1-lv-ivps5048p1g1-lv-ivps7548p2g1-ivps10048p2g1-manual.pdf, p.25
Also applies to:IVGM6KL-P1G1IVGM7K6L-P1G1IVGM8KL-P1G1
BMS communication fault — BMS communication failure between battery and inverter.
Cause: Communication has been lost between the inverter and a peripheral device — typically a battery BMS, smart meter, or external monitoring dongle.
Source: Felicitysolar IVGM Series Hybrid inverter Instruction Manual.pdf, p.53
Also applies to:IVEM6048IVEM8048-IIIVEM12048-IIIVEM 8K-12K Series IIIVEM8048-LVIVEM8048
Over temperature happen at LLC TX
Cause: The temperature of internal DC/DC TX is over the limitation.
Check whether the air flow of the unit is blocked or whether the ambient temperature is too high.
Source: felicitysolar IVEM 6048 Solar Inverter User Guide.pdf, p.38 · IVEM8K-12K-II_compressed.pdf, p.44 · FelicitySolar IVEM8048-LV Single Phase Hybrid Inverter User Guide.pdf, p.39
Also applies to:T-REX-10KLP3G01
Bus voltage unbalance
Cause: The positive and negative halves of the internal DC bus have drifted apart in voltage — an internal balancing fault in the conversion stages.
Restart the unit, if the error persists, contact the repair center.
Source: T-REX-10KHP3G01-Inverter-User-Guide.pdf, p.29 · t-rex-10klp3g01-inverter-user-guide-english.pdf, p.28
Battery 1 SOC Low fault — Battery 1 SOC is too low, the battery should be charged.
Cause: Battery 1's state of charge has dropped below the protection threshold — the pack has too little usable energy left and must be charged.
Source: t-rex-25-50khp3g01-user-guide-en.pdf, p.46
It depends on the model — 8 devices use code 32. On the IVPS3524P1G1-LV it means: INV NTC is disconnected or abnormal. The card for each model on this page gives its exact meaning and fix.
32 is a fault code: the inverter cuts its output and the red LED stays solid until it is cleared.
Contact the repair center. The exact steps for each affected model are listed on this page.
All IVEM 6048 codes All IVEM8048-II codes All IVEM8048-LV codes
Prefer the full written guide? Read the complete Felicity inverter error-code guide
Compiled from official Felicity user manuals. Always consult your device manual and a qualified technician before performing repairs.