Original message
| mlpasp
 |  ""PF" on the display screen?!?!"
, posted Fri 1 Oct 18:17  
I have a Totaline Thermostat CPV220 with a temper...
I am trying to turn my heat mode on but I am getting "PF" letters on the display screen.....
The main question is what is wrong, and what can I do to fix it.
Thanks,
Tony
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Replies:
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| Xenos
Webmaster 
| "Re(1):" , posted Fri 1 Oct 19:55
Is this a new thermostat ? Why I ask is it may need a common wire however I seem to recall the possibility of Carrier having thermostats that required a resistor installed on the W terminal at the furnace to keep the thermostat powered during heating.
Xenos.
The best way to escape a problem is to solve it.
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| | mlpasp
| "It is about 2 years old......" , posted Fri 1 Oct 22:54
Well, it is about two years old....and it has been working great until about a week or 2 ago.
Nothing has really changed, except for a flood came threw, but nothing about the furnace good wet. Now the stand-alone A/C was just about under water, but I threw the main breaker right away.
Thanks for the quick response.
Tony
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| | Xenos
Webmaster
| "Re(1):It is about 2 years old......" , posted Fri 1 Oct 23:14
For a test Jump r and W at the thermostat and see if the furnace operates. That would be R and W1 on that one I belive
Xenos.
The best way to escape a problem is to solve it.
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| | Xenos
Webmaster
| "Re(2):It is about 2 years old......" , posted Fri 1 Oct 23:15
why I say that is there could be a short in the unit.
Xenos.
The best way to escape a problem is to solve it.
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