Part 5, Troubleshooting guide – HTP CG300N65 User Manual
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LP-436 REV. 3.21.14
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 qualified service technician a visual
indication of the operational status of the different 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.
This manual is related to the following products: