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greekgoddj
@greekgoddj
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Eminent Member
Joined: Dec 5, 2021
Last seen: Aug 26, 2026
Profile Activity
Topics: 5 / Replies: 15
AllTopicsReplies
Reply
RE: Flow temperature up and down like a yo-yo

@derek-m No update yet... Still (2 weeks now) waiting for Mitsubishi to send the replacement circulation pump first. Will for sure update this thread ...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Flow temperature up and down like a yo-yo

@glpinxit yup, that is more of less like what mine looked like last year.. so clearly something has gone wrong at the moment. I am very much looking t...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Topic
Flushing an ASHP system (and UFH) questions
3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Replies: 1
Views: 3607
Reply
RE: Flow temperature up and down like a yo-yo

@sunandair Yup, I wait for the new pump.. then see if that helps the flow rate. If not then a clean of the system. By that point the flow rate should ...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Flow temperature up and down like a yo-yo

@derek-m Outside temperature was 0 🙂 thermostats inside were already 1-2 degrees higher than normal to rule out the system not calling for heat in th...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Flow temperature up and down like a yo-yo

43C @ 0C to 25C @ 12C. Flow rate is 16l/min (it should be 20-32l/min, waiting for new pump) LWT and RWT, are those not the same values showed in t...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Flow temperature up and down like a yo-yo

Hi, it is in weather compensation. Water heater is not turned on, so it isn’t the cause of the interruption. I have also checked that it isn’t defrost...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Topic
Flow temperature up and down like a yo-yo
3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Replies: 15
Views: 5251
Reply
RE: GSHP in 11 year old house

Hi…. are you turning the system on/off or adjusting the room target temperature daily? If so, then yes that will be inefficient. The main benefit of t...

4 years ago
Forum
Ground Source Heat Pump (GSHPs)
Reply
RE: 2 x Mitsubishi Zubadan 14kW ASHPs in 400sqm house

Hi @alanb The clamps go around the live electric feed in your fuse box that feeds the ASHP. I used this video as a guide Obviously take great...

5 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: 2 x Mitsubishi Zubadan 14kW ASHPs in 400sqm house

My suggestion is to fit aShelly EM unit on your system as I have done and you can see exactly what is used by what. I have one clamp measuring the ent...

5 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Significance of delta betweeen flow and return temperature

@derek-m Thanks!

5 years ago
Forum
Air Source Heat Pumps (ASHPs)
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