notsobigjoe wrote:
Thanks! Is the stat your showing me the same as mine? It sure looks it but the wires are thicker and mines a dual stage. If I can do this it would be great. Actually, I'll have my Hvac friend Garrett take a look at your post. I can afford that... LOL Thank you very much my friend, I'll let you know how I make out.
Yes my heater is 2 stage , same stat , your is 15btu 22btu furnace, mine because of larger area inside 5th wheel ,is a 25btu 40btu , but thermostat is the same
The wires are of different size I would guess because Lance wired yours and the wiring on mine came with the furnace , pos and neg colors of yours are red and white , mine are red and green as shown in attwoods wiring diagram , thats not going to matter , show your buddy page 13 and 15 of the second link towpro gave.
If your stat is just failing on the AC side , but works the heater a second stat is cheaper than replacing the heater to get a new stat that will operate both , just remember to turn one off and the other on or the AC will come on to lower the room temp that the heaters rising , vis versa.
If your AC is a coleman the 2 pages below are from the coleman/airxcel analog stat I put in my Lance TC , its for a AC and single stage furnace, but the make them for AC only ,the only difference I see is the low fan wire on yours is blue and they call it gray ,not going to matter. you would have to extend the yellow , small blue and green wires , add a jumper from the pin 3 -red wire on the exiting stat to the new one for 12vdc+, I dont think you need the 12vdc- except if its used for a furnace
IF you call airxcel with the model AC you have they can confirm the cool only stat you need , If its a dometic still the same sort of thing but their stat
I`m guessing you have a coleman /airexel AC judging from the yellow jumper going from the 3rd pin to the 4th pin
Your small blue wire on pin 7 is the high fan ac wire
green wire on pin 6 is low fan ac
yellow on pin 5 is ac compressor wire
Disconnect those and remove the yellow jumper wire
Buy a cool only coleman stat (cheaper) or a heat and cool -only use the cool function
Hook those wires to the new stat , possible you may need to jump the 12v neg wire on pin 1 to the new stat but I think thats only for heat
pic of 2 stats in my 5th wheel- notice only 3 wires connected
In my Lance TC I have a attwood single stage heater and a coleman AC connected to a coleman stat
Your small blue wire on pin 7 is the high fan ac wire
green wire on pin 6 is low fan ac
yellow on pin 5 is ac compressor wire
Disconnect those and remove the yellow jumper wire
Buy a cool only coleman stat (cheaper) or a heat and cool -only use the cool function
Hook those wires to the new stat , possible you may need to jump the 12v neg wire on pin 1 to the new stat but I think thats only for heat
pic of 2 stats in my 5th wheel- notice only 3 wires connected
In my Lance TC I have a attwood single stage heater and a coleman AC connected to a coleman stat
The problem is, when I turn the heat on the A/C turns on and off a couple of times and then it runs normally. That's it really, I've been looking all day for 2 stage thermostats and really haven't found much more that I told you about. I'll let you know what Coleman and dometic say but we already know what dometic is going to say. I'm not buying a new furnace that's for sure. Sometimes I wish I could afford some new stuff.
Hers a pic of my rig!!!
Click For Full-Size Image.
Hers a pic of my rig!!!
Click For Full-Size Image.
First time not so bad! The wires go through a hole in the bathroom wall with no pigtails that I can see.
Lets see if this works. The pics speak for themselves and a pic of the furnace.
Click For Full-Size Image.
Click For Full-Size Image.
