Is my Heatmiser UFH controller dying?
I've got a Heatmiser UH8-RF controlling my underfloor heating. I've never liked it, the room stats are inaccurate and cheap & nasty (old ones, not the sexy Neo ones) and every so often the system seems to get confused. Yesterday it stopped controlling the valves, although the stats were still clicking the relays nothing was happening. The actuators are 230v, when I measured the valves that were open it was reading 280v. The incoming supply is ok (although there may have been a brief outage) but surely I shouldn't be seeing 280v? Can anybody who has one of these verify this?
I'd love to replace it with something that integrated properly with my Vaillant ASHP, but there doesn't seem to be anything else on the market. Any suggestions?
- 26 Forums
- 2,364 Topics
- 53.6 K Posts
- 192 Online
- 6,027 Members
Join Us!
Worth Watching
Latest Posts
-
RE: Need Help Optimising My Rushed ECO4 Install: 12kW Bosch Heat Pump
Welcome @mickamills We too have an oversized 12kW Sa...
By Old_Scientist , 11 minutes ago
-
RE: My Powerwall 3 Consumes 3-4 kWh/Day in Self-Consumption: Is This Normal?
@caron I can confirm that the power usage of the PW3 is...
By Old_Scientist , 25 minutes ago
-
RE: Balancing financial efficiency and comfort using the Octopus Cosy tariff
Looking at your figures, I'm guessing you'd ideally nee...
By Old_Scientist , 1 hour ago
-
I agree, I'm equally predisposed to a cold sunny winter...
By Old_Scientist , 1 hour ago
-
RE: Octopus Cosy Heat Pump Owners & Discussion Thread
@andrewj they will release smarter controls, its been m...
By swwils , 3 hours ago
-
RE: Speedcomfort radiator fans
Thats true, but having tried (and succeeded) in constru...
By JamesPa , 4 hours ago
-
RE: Solis S6-EH1P8K-L-PLUS – Why I Chose It and What I’ve Learned So Far
@bash brilliant, thanks for the feedback
By energy9165 , 6 hours ago
-
RE: Setback savings - fact or fiction?
The OpenWeatherMap API provides plenty of historical da...
By Majordennisbloodnok , 6 hours ago
-
RE: Heat Pump Heats the House… But It’s Not Cosy. Emitter Changes or System Tweak?
@alastair There I was, feeling grumpy, he said “Cheer u...
By Toodles , 8 hours ago
-
RE: Grant Aerona: Is there a setting to keep the 2-port valve open during pump blockade
Depends on OAT. Mine cycles at OAT>10 and of course...
By JamesPa , 9 hours ago
-
RE: New Fogstar 15.5kWh upright solution
@transparent My conclusion is as you have noted, tha...
By Bash , 10 hours ago
-
That makes sense to me,although we don't know what the ...
By Transparent , 12 hours ago
-
RE: Mitsubishi Ecodan R290 10kW performance
And to you too. Wishing you a very enjoyable festive s...
By Sheriff Fatman , 12 hours ago
-
RE: External pipework insulation
They do? But that isn't apparent from the photos we'r...
By Transparent , 14 hours ago
-
RE: Say hello and introduce yourself
@velcro welcome to the forums. Please feel free start a...
By Mars , 1 day ago
-
Daikin EDLA11D3V3 DHW Settings
I have a newly installed EDLA11D3V3 which I'm still get...
By Velcro , 1 day ago
-
RE: Midea ASHP – how to set weather compensation
@curlykatie did you get sorted with this?
By MickaMills , 1 day ago
-
RE: MyVaillant Connect Regular Disconnect
Thanks. Yes, if the time is consistently 11pm every nig...
By buckwem , 2 days ago


