Quote Originally Posted by robot
Youther....Princeton WV is listed as elevation 2605 ft so water boils at appx 207.7 degrees F there. You could take your temp sensor out and put it into a container of water and boil the water....when the water begins to boil, the indicated temperature should be 207.7. Of course, you would also have to take your temp gauge along to the stove and rig up a 12 volt source to run it.

If the gauge/sender reads accurately, the next step is to inspect your installation. Did you change the position or location of the sender? Some folks mount the sender in a location where there is a trapped pocket of air that keeps the temp sendor tip from being in contact with the water. I've seen people put senders in some awful looking pipe adapters that insulated the sender....of course, these read low. One way to assure the absence of the air pocket is to burp the system by unscrewing the temp sensor after you fill the system (and it is still cold) so that a small bit of liquid escapes (to tell you that the air is gone).

You didnt say what brand of gauges you are using and if the sender matched the gauge brand.

hope this helps

mike in tucson
Great info. I'm not technical enough to pull this off....LOL! I can pull off the sender and see if it is full.

As far as the sender and the gauges, the sender was not part of the gauges but is new. The gauges are TPI Tech gauges.