---
title: Temperature Controllers
description: Inkbird ITC-306A WiFi temperature controller setup and troubleshooting
published: true
date: 2026-04-12T00:00:00.000Z
tags: pncfish, equipment, inkbird, reef
editor: markdown
dateCreated: 2026-04-12T00:00:00.000Z
---

# Inkbird ITC-306A Temperature Controller

## Specs & Requirements

| Item | Detail |
|------|--------|
| Model | Inkbird ITC-306A |
| WiFi | 2.4GHz only — will not connect to 5GHz |
| App | INKBIRD+ (iOS and Android) |

## Setup

1. Ensure phone is connected to a **2.4GHz WiFi network** (not 5GHz) before pairing
2. Put device in pairing mode (hold button per manual)
3. Open INKBIRD+ app → Add device → follow pairing wizard
4. Enter 2.4GHz WiFi credentials in app — do not attempt to connect to 5GHz SSID

## Known Issue — App Not Functioning After WiFi Connect

**Status: INCOMPLETE — resolution not confirmed**

Symptom: Device connects to WiFi successfully but INKBIRD+ app still does not function correctly (cannot control or read device).

Troubleshooting steps to try:
- [ ] Close and fully restart INKBIRD+ app
- [ ] Check if a firmware update is available in the app
- [ ] Try re-pairing: remove device from app → factory reset device → re-add
- [ ] Try a different phone if available
- [ ] Check if router has AP isolation enabled (would prevent app ↔ device communication even on same network)

## Configuration (Once App Working)

Set temperature probe calibration offset if probe reads inaccurately. Configure heating/cooling setpoints appropriate for the tank species being controlled.