Why inverter IGBT modules fail: 6 root causes
Six typical failure modes of IGBT modules in string inverters — overheating, overvoltage, gate driver faults, solder fatigue, vibration, counterfeit parts — and what to check before replacing.
ReadSolar spare parts blog
Field guides on failures, board compatibility, original vs refurbished parts and logistics into the rest of the world.
Fault guides
Compatibility & matching
Huawei SUN2000 board compatibility: what to check before ordering
M0 and M1 board revisions of Huawei SUN2000-36/50/60KTL are not interchangeable. How a nameplate photo and firmware version eliminate the risk of ordering the wrong board.
ReadOriginal vs counterfeit
How to spot a refurbished IGBT module before you pay
Practical guide to identifying re-marked and refurbished IGBT modules: marking quality, date codes, base surface, electrical tests and documented origin checks.
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Send a nameplate photo — exact match within 24 hours.