diff -r 8448fcf3d799 -r a919c6dc2100 thermferm/thermferm.c
--- a/thermferm/thermferm.c	Mon Feb 16 20:41:09 2015 +0100
+++ b/thermferm/thermferm.c	Mon Feb 16 23:21:45 2015 +0100
@@ -1322,9 +1322,9 @@
 		     * PID controller compute
 		     */
 		    P_err = sp - pv;
-//		    if (P_err < unit->idle_rangeH && P_err > unit->idle_rangeL) {
-//			P_err = 0.0;
-//		    }
+		    if (P_err < unit->idle_rangeH && P_err > unit->idle_rangeL) {
+			P_err = 0.0;
+		    }
 		    pTerm = unit->PID_Kp * P_err;
 
 		    /*