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I need the correct wiring for a honeywell pro 3000. im

Customer Question
I need the correct...

I need the correct wiring for a honeywell pro 3000. im replacing a old mercury thermostat

Contractor's Assistant: Just to clarify, do you think this is a larger HVAC problem, or something specific to the thermostat?

Thinking thermostat

Contractor's Assistant: Do you plan on doing the work yourself?

Yes. the old stat had the blue wire to the yellow terminal

Contractor's Assistant: Anything else we should know to help you best?

I put the wires in new unit and no ac would work, if i put the heat on. ac and heat ran at same time

Submitted: 10 months ago.Category: HVAC
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Answered in 6 minutes by:
9/28/2017
HVAC Technician: airheatman, HVAC Technician replied 10 months ago
airheatman
airheatman, HVAC Technician
Category: HVAC
Satisfied Customers: 9,376
Experience: Furnace, A/C and heat pump specialist.
Verified

I will be glad to help.Tell me where each wire went on old

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