Summary

A homeowner in South Orange called us when their generator showed a warning light and failed to start. Upon our arrival, we observed that the generator was displaying Error 1505 - RPM Sense Loss. This kind of issue can leave a property without backup power, so quick and accurate troubleshooting was key.

The Work

Ran a full diagnostic to identify the source of the failure (Fuse, Battery, 12V DC Starter Control Wire, Starter Contractor Relay (SCR), Start Contactor)
Replaced a faulty starter control relay (SCR)
Installed a new battery connector to address related wiring concerns

The Outcome

The generator now starts and runs reliably, with indicator lights returning to normal. This gives the homeowner confidence that their backup power is ready when it's needed most.

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Diagnostics Visit - RPM Sense Loss

October, 2026 | South Orange, NJ

Project Overview

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