What's causing a high carbon monoxide reading at my gas wall heater? Reading is 295 ppm.
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What's causing a high carbon monoxide reading at my gas wall heater? Reading is 295 ppm.
You must have a venting problem. Call a Pro ASAP.
Blocked flue or cracked heat exchanger. That is a high level, keep a window open and get professional help ASAP.
Dirty burners can cause high CO readings. Call a local professional NOW.
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