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Michel54
@michel54
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Joined: Dec 15, 2024
Last seen: Dec 26, 2024
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Topics: 1 / Replies: 4
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RE: L9 error with Mitsubishi ecodan heat pump

Hi @sunandair, Over the last few days, I decided to contact a professional to take a look at my heating installation to see if they could resolve th...

6 months ago
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Air Source Heat Pumps (ASHPs)
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RE: L9 error with Mitsubishi ecodan heat pump

Hi everyone thank you for your answers.This is a picture of my setup, I have done all the plumbing myself. This is the diagram that i followed : ...

7 months ago
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Air Source Heat Pumps (ASHPs)
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RE: L9 error with Mitsubishi ecodan heat pump

Hi @gary ,I tried to put code 540 to get the flow reading and the machine is giving me a flow of zero. It seems logical because the pump doesn't start...

7 months ago
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Air Source Heat Pumps (ASHPs)
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RE: L9 error with Mitsubishi ecodan heat pump

@editor Yes, indeed, that’s what’s happening. Because of that, I suspect the liquid inside the heat pump gets too hot, which triggers the L9 error.

7 months ago
Forum
Air Source Heat Pumps (ASHPs)
Topic
L9 error with Mitsubishi ecodan heat pump
7 months ago
Forum
Air Source Heat Pumps (ASHPs)
Replies: 12
Views: 2183
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