josh mcdaniels1 Posted November 3, 2021 Share Posted November 3, 2021 Troubleshooting an issue where APU will reach about 20% RPM no ignition and also getting fuel. ACAWS screen throwing APU START 123 ECB TO. Any seen this before ? Quote Link to comment Share on other sites More sharing options...
hehe Posted November 4, 2021 Share Posted November 4, 2021 11 hours ago, josh mcdaniels1 said: Troubleshooting an issue where APU will reach about 20% RPM no ignition and also getting fuel. ACAWS screen throwing APU START 123 ECB TO. Any seen this before ? Not sure what you are doing to troubleshoot this but it's pretty easy to start. 1. Start diagnosing the tripped open ECB IAW 24FI for tripped ECB. 2. Swap/R2 APU relays and check all power connections. I would caution resetting the ECB multiple times until you figure out what is causing it to trip. Quote Link to comment Share on other sites More sharing options...
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