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Ecodan 11.2kw Wireless thermostat drop outs

 
Air Source Heat Pumps (ASHPs)
Last Post by RobS 4 months ago
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 skyecraig
(@skyecraig)
New Member Member
Joined: 4 months ago
Posts: 1
Topic starter 09/04/2025 9:01 am  

Hi,

I have some interesting behaviour with my wireless thermostat (the one that comes supplied with the FTC7 controller). It looks like it drops out for a bit that causes the heat pump to stop for a few minutes and then start back up again(graphs attached). I was wondering if anyone else had similar experiences? I have moved it to be closer to the control unit, with no luck. I do have a lot of zigbee devices... not sure if that is relevant. Im using

GITHUB.COM "https://github.com/F1p/Home-Assistant-Mitsubishi-Ecodan-CN105-to-MQTT"
GitHub - F1p/Home-Assistant-Mitsubishi-Ecodan-CN105-to-MQTT: Originally based on the CN105 decode by m000c400, this fork provides CN105 control from basic microcontrollers like the ESP8266 or ESP32
Originally based on the CN105 decode by m000c400, this fork provides CN105 control from basic microcontrollers like the ESP8266 or ESP32 - F1p/Home-Assistant-Mitsubishi-Ecodan-CN105-to-MQTT

to get log all the data from the Ecodan FTC7 controller 

 

Craig

 

image
image
image

 


   
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 RobS
(@robs)
Estimable Member Member
Joined: 10 months ago
Posts: 54
09/04/2025 9:46 pm  

@skyecraig

I've had our FTC7 wireless thermostat lose connection to the controller a few times, does yours display 3 in the top right where the temperature usually is? It didn't stop the heat pump when it did this though. I've moved it from beside the mesh WiFi router (interference seemed the likely cause) and it's worked fine since. 


   
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