Question about Honeywell Heating & Cooling
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Posted on Jan 02, 2017
SOURCE: Hi. I have a ST6400S
The only way to get the key sequence is to contact honeywell tech support, they will give you the sequence over the phone as long as you are a contractor (or pretend to be one), but they will not send out any literature on it. If you live in an owner occupier dwelling then it has been fitted by mistake, and the best thing is to replace it.
Posted on Sep 10, 2008
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