[pairodice]

Sorry, the guage is in the kitchen - Newell replaced the original with an after-market guage to show the temperature. I added coolant into the radiator cap directly and it took about a full gallon so it was definitely low. I noticed the guage still said LO so I decided maybe it meant the temp was low and not the antifreeze (which makes sense now). I turned on the Diesel AH and the temp came up quickly and the LO signal went away. So apparently the LO was in reference to the coolant temps. The Electric AH was not working because the A/C was on! Doh! i know that but didn't think about it... it only took about 10 minutes and the AH was up to 160degrees - I decided to turn it off since we were not using it and will turn it on when we need a hot shower. Thanks for the quick response!