Title: Lost Your Guide? How to Use and Program the TGC BC901H Calculator

Q5: Is the BC901H compatible with Alexa or Google Home? A: The base model is not smart-home ready. However, some later versions include a Wi-Fi module (look for a “Cloud” icon). For those, download the “TGC Smart” app and follow in-app pairing.

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Step 3: Wiring – CRITICAL

Improper wiring is the #1 cause of BC901H failure. Turn off all power before connecting.

Likely a mechanical fault with the combustion fan or thermistor. Requires professional service. 60-Min Auto Stop