diff --git a/tasmota/tasmota_xdsp_display/xdsp_13_tm1640.ino b/tasmota/tasmota_xdsp_display/xdsp_13_tm1640.ino
index 3f8032c22..a4f0318e2 100644
--- a/tasmota/tasmota_xdsp_display/xdsp_13_tm1640.ino
+++ b/tasmota/tasmota_xdsp_display/xdsp_13_tm1640.ino
@@ -641,6 +641,8 @@ void IoTTimerShowDate(void)
 
 
 void IoTTimerRefresh(void) {  // Every second
+  if (!disp_power) { return; }
+
   // Update temperature display content:
   IoTTimerUpdateTemperature();