Originally Posted by CHICKDOE
we have a 2015 cardinal 5th wheel. it has manual switches for tank heaters on the control panel. i assumed that these were simple on / off switches to turn the electricity on or off for the tank heater pads. my this i mean if the switch is on, the pad is heating. i manually turned them on when the temperature got low and then turned them off the following morning. but several comments above allude to a thermostat with the heating pad to actually turn the pad on or off. by this i mean to have the pad heating the manual switch must be on AND the temperature must be low enough to have the thermostat close the electric circuit. if this is true, why not just leave the manual switch on the control panel on and let the thermostat turn the heating pads on and off? i guess i should run a test. get a reading of amps being used with the manual switch of (and the temperature up over 60 or so. then turn it on and take a second amp reading. if there is no change in amps used then there must be a thermostat in the circuit. so is there one common thermostat that controls multiple heating pads or does each pad have its own thermostat?
This is according to the manual. I heat my bays anyway in freezing weather, but sounds like using tank heat on empty tanks is not a good idea.
When do you turn "off" the Heat Panels or the entire system?
OFF - when there is NO liquid in the tanks or pipes
OFF - when the outside temperature remains above freezing.
OFF - when the black and gray holding tanks and drain pipes are being dumped.
OFF - when the fresh water holding tanks and supply pipes are being drained for storage or empty.
OFF - when the RV is connected to city sewer and the gate valves are open (free draining is never recommended, especially in cold weather RVing) .
Heaters must be turned "off" when there is NO liquid present (empty), or when ambient temperatures rise and remain above freezing. Only the Holding Tank Models have built-in sensors designed to monitor the temperature of the liquid within the holding tank when powered “on”, it will power cycle the heat panel "on/off" to maintain the tank fluid contents between 44°F and 64°F (6.6°C - 17.8°C) and conserve power consumption. Pipe and Elbow heat panels are either "on" or "off" based on the manual switching position. The built-in sensors of tank models are very poor and not used to monitor the air in empty tanks, nor are the heat panels designed to operate in warmer temperatures. For this reason all UltraHeat® heat panels must be turned "off" when the holding tank systems have been vacated of fluids, or ambient temperatures rise and remain above freezing. We recommend each tank system (I.E. Black, Grey and Fresh) has a separate switch to control power independently, and suggest the integration of our Ambient Temperature Master Power control kit (info, click here).
Notice: Failure to observe criterias stated for when to power "on" or "off", could result in damage to the anti-icing system or tanks.
2015 Georgetown 329DS
2014 Chevy Equinox