Joining the Renewable Heating Hub forums is completely free and only takes a minute. By registering you’ll be able to ask questions, join discussions, follow topics you’re interested in, bookmark useful threads and receive notifications when someone replies. Non-registered members also do not have access to our AI features. When choosing your username, please note that it cannot be changed later, so we recommend avoiding brand or product names. Before registering, please take a moment to read the Forum Rules & Terms of Use so we can keep the community helpful, respectful and informative for everyone. Thanks for joining!
Below is an extract from the MIM-E03CN manual, which is the recommended controller for use with your heat pump.
Do you only have the one water pump?
Is your system still short cycling at the same frequency?
One possible problem could be incorrect settings within the controller. If possible go into the installer menu and make a note of any parameter settings that you can find, and then post the results.
@derek-m I have two pumps I believe. You can see both pumps in this pic.Â
I am still getting short cycling, yes.Â
What settings do you mean, sorry?Â
It's entirely possible the settings are incorrect, I've had to wing it to get as far as I have.Â
What is the temperature setting of the two thermostats, and what is their make and model?
@derek-m okay, I'm not at home at the moment. I'll do it later and report back. I've made various adjustment to water law which is Samsung for WC. The temp in the house is nice and the COP is acceptable too. Just the cycling. Thanks again
The Joule Samsung instructions are available on line, they don’t use a PWM pump. They have a separate interface PCB that comes after the MIM. I’ll see if I can find a link.
I would be inclined to get the installer to wire/plumb it up as per the Midsummer wholesale instructions that give details on how to fit a PWM pump and use the Samsung controller as the room stat.
Off grid on the isle of purbeck
2.4kW solar, 15kWh Seplos Mason, Outback power systems 3kW inverter/charger, solid fuel heating with air/air for shoulder months, 10 acres of heathland/woods.
My wife’s house: 1946 3 bed end of terrace in Somerset, ASHP with rads + UFH, triple glazed, retrofit IWI in troublesome rooms, small rear extension.
- 27 Forums
- 2,776 Topics
- 65.5 K Posts
- 1,463 Online
- 7,183 Members
Join Us!
Installer Finder
Degrees of Separation
Latest Posts
-
RE: Say hello and introduce yourself
@paul1098 — I like many others have an old listed grade...
By cathodeRay , 2 hours ago
-
RE: Is This Initial Free Quote From Octopus Trusted Partner Reasonable?
@editor That's a pity, but thank you for checking. I'l...
By ltron2 , 10 hours ago
-
My fifth heat pump book, Heat Pumps Explained, is out n...
By Mars , 18 hours ago
-
RE: Who's your electricity provider and what's your tariff?
Just furkled Into the parameter menu. Found the master ...
By AgentGeorge , 19 hours ago
-
RE: Analysis of the economics of switching to an A2W ASHP compared to other heat sources
It's interesting that Norway with a much colder climate...
By Rob of York , 20 hours ago
-
RE: Review your electricity provider
Happy to add Scottish Power and the review 'dont touch ...
By JamesPa , 1 day ago
-
RE: Is it just me, or does tradesperson timekeeping and communication drive you absolutely mad?
Yes, and I would suggest likely to get worse with more ...
By Batpred , 3 days ago
-
RE: Electricity price predictions
This topic seems more suitable for this thread... I a...
By Batpred , 3 days ago
-
RE: Why are ASHP installs so expensive?
It is clearly difficult to say, there must be cases whe...
By Batpred , 3 days ago
-
RE: Panasonic Free Multi Z and Etherea Internal units.
@dgclimatecontrol Thank you for that information and re...
By Toodles , 3 days ago
-
RE: My Kronoterm Adapt 0312 ASHP is finally installed!
@editor It was serendipitous really. Both my wife and I...
By tomasmcguinness , 3 days ago
-
@mrkfm, I'd also suggest that whenever you're ready, st...
By Mars , 4 days ago
-
RE: Are you planning to use a wood burner to supplement your central heating this winter?
I use my stove daily for backup and comfort. Definitely...
By Margarethomas , 4 days ago
-
@rob-of-york Thanks. I wish I'd started on this site as...
By mrkfm , 4 days ago







