How do I recalibrate or trouble shoot that? My Grandson (19months) was seen playing with it,don't know if he was the reason(can't overlook that) or if this thermostat/module has gone bad,but so far have not had luck finding any calibration or trouble shooting info. Have attempted to do the temp recalib in the module,that only took me up to about 35 degrees F,room is at 70 F,thanks in advance for any wisdom,help an thoughts,WI Dale