https://www.googlenestcommunity.com/t5/Nest-Thermostats/Nest-App-is-not-firing-my-boiler/m-p/711575#M134260 <P>It does, thank you. The App on my phone talks t the thermostat. It just doesn’t fire the boiler unless I also put on the heating&nbsp;</P> Thu, 17 Apr 2025 08:10:08 GMT MordenMark 2025-04-17T08:10:08Z https://www.googlenestcommunity.com/t5/Nest-Thermostats/Nest-App-is-not-firing-my-boiler/m-p/711157#M134193 <P>My Nest App will not fire my boiler for Hot water only. The heating is now off. It was not a problem when the heating was running but now I have no hot water. The App goes orange, the heatlink gives me three green lights, I hear clicking, but the boiler will not fire up. Unhelpfully whenever I need to do something complicated with the App it just logs out. I have deleted the App several times and reinstalled it from the App Store. My iPhone is up to date.&nbsp;</P> Mon, 14 Apr 2025 14:59:16 GMT https://www.googlenestcommunity.com/t5/Nest-Thermostats/Nest-App-is-not-firing-my-boiler/m-p/711157#M134193 MordenMark 2025-04-14T14:59:16Z https://www.googlenestcommunity.com/t5/Nest-Thermostats/Nest-App-is-not-firing-my-boiler/m-p/711449#M134229 <P>Does the system work as it should by using the display?</P> Wed, 16 Apr 2025 10:16:35 GMT https://www.googlenestcommunity.com/t5/Nest-Thermostats/Nest-App-is-not-firing-my-boiler/m-p/711449#M134229 Frustratedddd 2025-04-16T10:16:35Z https://www.googlenestcommunity.com/t5/Nest-Thermostats/Nest-App-is-not-firing-my-boiler/m-p/711575#M134260 <P>It does, thank you. The App on my phone talks t the thermostat. It just doesn’t fire the boiler unless I also put on the heating&nbsp;</P> Thu, 17 Apr 2025 08:10:08 GMT https://www.googlenestcommunity.com/t5/Nest-Thermostats/Nest-App-is-not-firing-my-boiler/m-p/711575#M134260 MordenMark 2025-04-17T08:10:08Z https://www.googlenestcommunity.com/t5/Nest-Thermostats/Nest-App-is-not-firing-my-boiler/m-p/711578#M134261 <P>You state this in your first post, is this correct?</P><P><STRONG>The App goes orange, <FONT color="#FF0000">the heatlink gives me three green lights,</FONT> I hear clicking</STRONG></P><P>I assume you get this when you call for Hot Water in the app icon, correct?</P><P>&nbsp;</P><P>Do you have a combi boiler or system boiler?</P> Thu, 17 Apr 2025 08:49:41 GMT https://www.googlenestcommunity.com/t5/Nest-Thermostats/Nest-App-is-not-firing-my-boiler/m-p/711578#M134261 Frustratedddd 2025-04-17T08:49:41Z https://www.googlenestcommunity.com/t5/Nest-Thermostats/Nest-App-is-not-firing-my-boiler/m-p/711678#M134272 <P>Sorry, I have been away for a few days, so I have been unable to reply. The screen goes orange (mainly) on the app, and I hear clicking when I manually start the heat link. When I got home last night, I ran both the heat and hot water to ensure that I had water. This morning, the hot water fired up on its own accord when it was supposed to. It is the inconsistency that is driving me nuts. And having to use the heating when I don't need to</P> Fri, 18 Apr 2025 05:56:04 GMT https://www.googlenestcommunity.com/t5/Nest-Thermostats/Nest-App-is-not-firing-my-boiler/m-p/711678#M134272 MordenMark 2025-04-18T05:56:04Z https://www.googlenestcommunity.com/t5/Nest-Thermostats/Nest-App-is-not-firing-my-boiler/m-p/711713#M134275 <P>Just to confirm.</P><P>You can press the Heat Link button, 3 lights come on and the heating and hot water work correct?</P><P>When you call for hot water in the app, you get an orange screen <STRONG>BUT</STRONG> do you hear a click at the Heat Link?</P><P>Do you have any motorised valves in the system, if so have you checked they are working when you call for hot water?</P> Fri, 18 Apr 2025 08:50:19 GMT https://www.googlenestcommunity.com/t5/Nest-Thermostats/Nest-App-is-not-firing-my-boiler/m-p/711713#M134275 Frustratedddd 2025-04-18T08:50:19Z