Category: hvac
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4-Zone Wall Controller Firmware Update: Latest Features for Existing Customers
If you have already purchased a TekOnline 4-Zone Wall Controller, the latest firmware adds a few useful features without changing the core wall-control experience. The front buttons still…
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How to Set Up the TekOnline 4-Zone Wall Controller in Home Assistant
Already have a wall controller for your HVAC? The TekOnline 4-Zone replaces it plug-and-play — same 24V wiring, same power supply, no electrician. Now with ESPHome for full…
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ESPHome StringRef Compile Error on the 4-Zone Wall Controller
Some customers using the TekOnline 4-Zone Wall Controller may see a compile error when flashing the newer hold-to-dim firmware in ESPHome. The error looks similar to: cannot convert…
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4-Zone Wall Controller Firmware v2026.05.07 – Hold-to-Dim with Spill Control
Latest Firmware: v2026.05.07 This is the latest ESPHome YAML for the 4-Zone Wall Controller (4zoneWallV1), featuring hold-to-dim PWM control with unique naming and relay-only spill overlay. What is…
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How To Hook Up The New 4-Zone Wall Controller
No electrician needed. The 4-Zone Wall Controller drops into your existing 24V HVAC setup — same damper wiring, same power supply. Here is the step-by-step wiring guide for…
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4-Zone Wall Controller Faceplate Update: Working Toward a Cleaner Clipsal 2000 Series Style Look
We are developing a cleaner faceplate direction for the TekOnline 4-Zone Wall Controller, aiming for a more familiar wall look inspired by the Clipsal 2000 Series style while…
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4-Zone Wall Controller Compatibility List
Check whether the TekOnline 4-Zone Wall Controller is a likely replacement for your existing 4-zone wall controller, including the SZ-SW4, and see what details to send before ordering.
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ESPHome 8-Zone HVAC Controller V2 Setup Guide
Thanks for purchasing the ESPHome 8-Zone HVAC Controller V2. This guide shows you how to: connect the board by USB flash it in ESPHome add it to Home…
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Is This ESPHome HVAC Zone Controller Right for You?
If you have been looking for a way to bring your ducted AC zoning into Home Assistant without relying on cloud services, apps you do not control, or…
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Can I Replace My iZone System with an ESPHome HVAC Zone Controller?
If you are currently using an iZone system and wondering whether our ESPHome 24V AC HVAC Zone Controller is a simple plug-in replacement, you are definitely not alone.…