How to mend ... Danfoss Will Not

Thorn Harcal 460?

Perhaps my 46 year old Thorn Harcal 460 is the last one in use, but its time is running out. The Danfoss RS 28... [Read more]

Cold Radiator?

Radiator in bedroom is not heating up, all other rooms are working fine. I have bled the Rad' but still not h... [Read more]

Danfoss RX1?

I have a Danfoss RX1 attached to my Samsung air-water underfloor heating system. It has two buttons: Prog and ... [Read more]

my danfoss 102 is not working proply?

The water only switch is working but when on set timer for water and heating only water comes on no central he... [Read more]

Danfoss RA 2000?

I can't seem to remove the RA 2000 knob. It is turning without gripping on anything. Any idea what to do? The ... [Read more]

Boiler override if roomstat fails?

How can I run the boiler for heating if the roomstat fails? Is the some sort of override function on the boil... [Read more]

danfoss SET3E contlolled heating system ?

In my Danfoss SET3E heating controlled system I can't turn the water heater section OFF! The switch on the... [Read more]

Danfoss rx1 program problem ?

I moved into this house a short while ago and haven't quite figured out the heating system. Its danfoss and fr... [Read more]

Danfoss REP230 Thermostat Wiring?

Long story short, I have the above thermostat and had an installer try to replace it with the new NEST thermos... [Read more]

danfoss setting boiler times/temperature?

Have set 4 programs start/finish for morning and evening at 21 degrees - however the boiler comes on in betwee... [Read more]

Danfoss RA 2000 thermostatic Radiator Valve Wont shut off?

When turning the thermostat all the way down to off position it wont shut off and continues to heat. Do I need... [Read more]

Danfoss timer not working?

Went on holiday and electric went out while I was away. When I returned and electric back on the the timer ... [Read more]

no heating no hot water?

i have a danfoss fp975 controler it has 2 red lights on, no time showing and nothing els happening this happen... [Read more]

heating?

my system is running continously 24hrs using a danfoss fp715 timer resetting does not appear to have any effec... [Read more]

danfoss motor?

when i put my oil heating on the burner keeps going off and on if iremove burner from boiler it fires no probl... [Read more]

Stuck Danfoss thermostat!?

Have a radiator with a Danfoss thermostat which is cold. How can I fix this?

Can I remove the thermostat from my Danfoss RV?

I have put radiator covers over two radiators and find that the thermostatic radiator valves installed on the ... [Read more]

Timer to Randall 4033 CH Control Unit Stopped?

The programming of my CH and HW system is controlled by a Randall/Danfoss 4033 unit. I know that being an ana... [Read more]