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Ecodan heat pump that has lost connection

 
Air Source Heat Pumps (ASHPs)
Last Post by mandie 1 year ago
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 mandie
(@mandie)
Active Member Member
75 kWhs
Joined: 1 year ago
Posts: 9
Topic starter 17/12/2023 12:02 pm  

Hi I’m new to this so pls bear with me! I have an Ecodan heat pump that has lost connection with its stat - YouTube tells me to turn the pump off (3secs) then turn server off for 5 secs - but my connection won’t turn off manually or otherwise- any ideas 💡 pls


   
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Abernyte
 Abernyte
(@abernyte)
Honorable Member Member
4162 kWhs
Joined: 2 years ago
Posts: 213
17/12/2023 1:42 pm  

Hi  Mandie,

When you say the Ecodan has lost connection with the stat, are you referring to the MELcloud interface known as a MAC-567IF  which is connected to the big box on the side of the DHW tank, and has a series of green or orange lights down the right hand side?  If yes - what lights are you seeing?


   
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 mandie
(@mandie)
Active Member Member
75 kWhs
Joined: 1 year ago
Posts: 9
Topic starter 21/12/2023 6:56 pm  

Sorry for the delay - yes I mean this but mine has green light on top and when you reset it the orange light to the left flashes (it’s then supposed to reset back to green but mine stays orange for ages and then as soon as I put my batteries back in my thermostat the J1 fault reappears in the box next to my water tank) (this is the box that I can adjust all my heating and water settings (hopefully this makes sense ) 


   
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 HarriUp
(@harriup)
Reputable Member Member
1073 kWhs
Joined: 3 years ago
Posts: 107
22/12/2023 12:12 am  

If you refer to this document - https://library.mitsubishielectric.co.uk/pdf/book/Ecodan_Controls_PAR-WT50R-E-PAR-WR51R-E_Install - part D-9 explains the process of re-pairing your wireless controller and receiver.

Mitsubishi EcoDan 8.5 kW ASHP - radiators on a single loop
210l Mitsubishi solar tank
Solar thermal
3.94kW of PV


   
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 mandie
(@mandie)
Active Member Member
75 kWhs
Joined: 1 year ago
Posts: 9
Topic starter 22/12/2023 5:04 pm  

@harriup thank you ! I’ll try giving this a go - I work for a heating company so I’ll get one of our senior engineers to try after Christmas and pop back on here if no joy - thank you again😊


   
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