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    maxdeisgn Posts: 1, Reputation: 1
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    Jan 27, 2017, 07:30 PM
    Can I use a Honeywell thermostat RTHL3550 with 8 wires?
    I didn't tag wires from old thermostat. Now have 8 wires exposed. Don't know where they went on old thermostat. Bought a new thermostat- Honeywll RTHL3550. Non Programmable. Wondering if it works with 8 wires or have top return it?

    Also how risky is it to try and wire it myself?

    Blown transformer?

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