diff --git a/code/ATMOSPHERICS/components/unary/cold_sink.dm b/code/ATMOSPHERICS/components/unary/cold_sink.dm
index 2534dc17a1..41e1f8d1db 100644
--- a/code/ATMOSPHERICS/components/unary/cold_sink.dm
+++ b/code/ATMOSPHERICS/components/unary/cold_sink.dm
@@ -113,6 +113,7 @@
 	if(stat & (NOPOWER|BROKEN) || !on)
 		cooling = 0
 		update_use_power(0)
+		update_icon()
 		return
 	
 	if (network && air_contents.temperature > set_temperature)
diff --git a/code/ATMOSPHERICS/components/unary/heat_source.dm b/code/ATMOSPHERICS/components/unary/heat_source.dm
index d69ae5ac33..ab474a3136 100644
--- a/code/ATMOSPHERICS/components/unary/heat_source.dm
+++ b/code/ATMOSPHERICS/components/unary/heat_source.dm
@@ -60,6 +60,7 @@
 	if(stat & (NOPOWER|BROKEN) || !on)
 		heating = 0
 		update_use_power(0)
+		update_icon()
 		return
 	
 	if (network && air_contents.total_moles && air_contents.temperature < set_temperature)