6 discussions on HomeOwnersHub about the Honeywell RTH8500: what owners asked, what went wrong, and what fixed it.
Hi,I currently have a Robertshaw 300-208 thermostat running my Luxaireheat-pump and (some other brand) electric furnace as auxiliary heat.I just bought the Honeywell RTH8500 thermostat to replace it.There are two labels on the Robertshaw...
Hi.I have a heat pump and an electric heat system and I am trying to replace my oldthermostat (Robertshaw 300-208) with a Honeywell RTH8500D.The original wiring setup on the Robertshaw 300-208 was the following:terminal -...
Hello all,I want to connect a wood furnace to a thermostat, but I don't know thecoloring conventions here. The thermostat is a Honeywell RTH8500.For conventional heat, the left hand side is:Y2W2and the RHS is:RCRWYGCNow, I am almost...
Hi,I currently have a Robertshaw 300-208 thermostat running my Luxaireheat-pump and (some other brand) electric furnace as auxiliary heat.I just bought the Honeywell RTH8500 thermostat to replace it.There are two labels on the Robertshaw...
switching from an old Honeywell T87F (dial type) thermostat.... on thold tstat it was:Wire - TerminalRed - RWhite - WGreen - GYellow - YGrey - B (but this wire wasn't connected to the transformer on thother end)I tried...
I recently bought a home with a Honeywell Chromotherm III (T8600D)model thermostat. My home has a natural gas burning furnace and an a/c system, both operating off of a single transformer.I am going to replace the thermostat myself and am...