Use and Care Manual
LP-436 Rev. 5.2.18
22
Part 5 - Troubleshooting Guide
LED Diagnostic System
This water heater is equipped with an LED (light emitting diode) diagnostic system, which is located in the black electrical box on the front
left hand side of the water heater. The diagnostic system is designed to give the user or qualied service technician a visual indication of
the operational status of the dierent parts of the water heater’s control system. A fast look at the LED panel will identify where to begin
troubleshooting a non-functioning water heater. A green light means that the sequence is operating properly and a red light means ongoing
action or a problem with the sequence.