yes it has a ignition molule & board with no wire it mounted on a box where 110 come in and other wire go out to motor & etc:yes it has a ignition molule & board with no wire it mounted on a box where 110 come in and other wire go out to motor & etc:
Depending on the board, and since you have no terminals labeled R and C, then you must have a module with a TH termimal, this is where the thermostat wire attachDepending on the board, and since you have no terminals labeled R and C, then you must have a module with a TH termimal, this is where the thermostat wire attach
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very limited information generic answer look on the covers of the unit for your c line connection and check if your thermostat wires were connected if all are then you have a c line but not connected on stat if not connection at units then run a line to the stat
The standard color code for the HVAC is as follows....
Red=Hot or 24v
White=Heat
Green=Fan
Yellow=A/C
White 1=secondary heat.
Blue=Spare
Orange=Heat Pump
C=Common
The thermostat has the terminals marked R,Rh,W,G,Y.
The furnace should have a terminal strip with similar markings.
If you only have 1 control transformer this will be easy.
Hook the wires up using the colors I have listed. If you don't have the same color wires go with whats close to them....such as use Orange for Red etc. It really doesn't matter as long as they are landed on the same terminals on the thermostat and furnace. Two wires running to A.C unit outside put one on Y the other on C. If you need any more help let me know!
Inside the furnace there is either a transformer relay with the markings of R & W stamped near the terminals or T TH or a circuit board with terminals marked R and W. This is where your thermostat wires will connect to. At the thermostat, connect the R terminal to the wire connected to the R terminal at the furnace or T terminal at furnace. The other wire goes to the W terminal on the thermostat. This will give you heat
you have to go down to your furnace and follow the thermostat wire ...it connects to a terminal strip or fan centre...the color doesn;t really matter...installers mix and match all the time....look at the furnace wiring and mark it down...Red on "R"...Green on "Y" whatever it is...and connect it accordingly upstairs...if you only have 4 thermostat wires downstairs you will need a jumper wire between RH and RC...if you have 5 wires you will see 2 wires on "R" at the furnace.,...and connect either to RH and RC at the thermostat
Usually when you have the Y terminal on the thermostat (that would be cooling terminal), there should be 4 screws to connect to. They would be R- to transformer, W- to furnace or heat, Y- to outdoor air conditioner and G- to furnace blower.
You might go to the furnace to see where these wires go, they should have the same terminals on the furnace except for cooling, it usually connects to the outdoor unit wire directly.
if the ac outside is working, but not the furnace, means there is a control problem with the furnace, check wires in the furnace, make sure there is a blower wire plugged into the contact marked cool on the control panel of the furnace
Sounds like the flame sensor. But it could be the thermostat. Is the furnace standing pilot or electronic spark or hot surface ignition. I would start by checking thermostat. Turn power off to furnace take thermostat off wall and take wires marked r & w and connect them together. Turn power back on if furnace works then change out thermostat.Most eclectronic ignition Furnaces have a flam sensor, You could take flame sensor out and clean it up with steel wool or wire brush. If you need anymore help just reply back .
Does the furnace burners light? You could have a bad thermostat or a flame sensor. To check if it is thermostat turn power off to furnace take thermostat off wall take wires marked r & w and connect them together then turn power back on. If furnace comes on and stays on then you need a new themostat if not it is the flame sensor inside furnace. Also check furnace filter
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