diff --git a/platform/broadcom/sonic-platform-modules-cel/silverstone-v2/utils/FanControl/SwitchInternalPIDRegulation.py b/platform/broadcom/sonic-platform-modules-cel/silverstone-v2/utils/FanControl/SwitchInternalPIDRegulation.py
index a2de835a34b8..3c1cfb0c272b 100755
--- a/platform/broadcom/sonic-platform-modules-cel/silverstone-v2/utils/FanControl/SwitchInternalPIDRegulation.py
+++ b/platform/broadcom/sonic-platform-modules-cel/silverstone-v2/utils/FanControl/SwitchInternalPIDRegulation.py
@@ -127,10 +127,10 @@ def pid_control(self):
         sw_temp = self.exception_data_handling()
         if not sw_temp:
             return DUTY_MAX
-        if len(T_LIST) < 3:
+        if len(T_LIST) < 2:
             T_LIST.append(float(sw_temp))
-            self.syslog.debug("Init PID Control T_LIST:%s" % T_LIST)
-            logging.info("Init PID Control T_LIST:%s" % T_LIST)
+            self.syslog.debug("Init Switch Internal PID Control T_LIST:%s" % T_LIST)
+            logging.info("Init Switch Internal PID Control T_LIST:%s" % T_LIST)
             return PWM_LIST[0]
 
         else:
@@ -147,6 +147,6 @@ def pid_control(self):
                              % (PWM_MAX, PWM_MAX))
                 pwm_k = PWM_MAX
             PWM_LIST[0] = pwm_k
-            T_LIST.pop(0)
             logging.info("Switch Internal PID: PWM=%d Temp list=%s" % (pwm_k, T_LIST))
+            T_LIST.pop(0)            
             return pwm_k