ETi 400
Ignition, temperature, flow and heater faults.
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Choose a troubleshooting guide below for your pool equipment. Each interactive guide walks through symptoms and next steps, with links to matching parts when a failure has been isolated.
Open all troubleshooting guides →
Ignition, temperature, flow and heater faults.
Start troubleshooting →Startup and heating problems.
Start troubleshooting →Heater symptoms and service checks.
Start troubleshooting →Priming, alarms, flow and automation.
Start troubleshooting →Pump faults, priming and app connections.
Start troubleshooting →Salt, output, flow and cell warnings.
Start troubleshooting →Generation-specific cell and sensor-module checks.
Start troubleshooting →Internet, app and Pentair account connectivity.
Start troubleshooting →Flow, pH / ORP probes and dosing problems.
Start troubleshooting →Filter flow and pressure troubleshooting.
Start troubleshooting →No light, flashing, color control, dimness and verified replacement.
Start troubleshooting →Power, color and brightness checks, fitting and cord-length matching.
Start troubleshooting →Priming, low flow, motor faults, overheating, noise and leaks.
Start troubleshooting →An alarm or symptom alone does not prove a part is defective. Match the model, generation and part number, and complete the guide’s verification steps before ordering. Internal electrical, gas and chemical-feed checks require a qualified technician.
These guides use your answers; they do not test or connect to your equipment remotely.
Send your equipment model, serial number, fault and technician findings to sales@poolsupplydepot.net.
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