Fix Fault Danfoss

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We have 160 questions about fixing 'danfoss'

AEG twin compressor fridge freezer frosting up?

Hi, My 5 yr old unit last year frosted up in the freezer and after cleaning it all off, it seemed fine until a month ago it started frosting up again slowly, however in the last 2 weeks the back panel ... more


Danfoss Thermostatic Valve - no obvious way to remove control to access pin?

There is no collar or scew to remove outer casing to access pin. Any ideas? Can send photo.


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Danfoss FP715 not working properly?

Just had new boiler put in. Got new pack of Danfoss (programmer plus other bits in box) The installer just used the programmer and I still have the other bits as he said didnt need them. The water and ... more


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DANFOSS TRV REPLACEMENT?

Where can i get a replacement danfoss trv. I need the typ that fits over a 25mm diameter valve, and has a ring similar to a jubilee clip that holds it in place.


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Central heating coming on when heating the water?

Hello, We had an issue with the boiler a while back, it broke down and wasn't heating the water, bloke came and fixed it but now everytime we have the water on the heating (ie radiators) come on fu ... more


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Is my boiler broken or do I just need to replace my Danfoss Rx1?

My Baxi Combi boiler is working at all. There are no LED;s lit at all. I think i've isolated the problem to the Danfoss Rx1 box, which I think isn't working as there are no LED's working on it and the ... more


Heating my hot water system?

We have a 210 litre megaflo tank and our boiler is an oil fired Boulter Camray 90/110 but it will not heat the hot water unless I set the Danfoss motorised valve to the manual position, I bought a new ... more


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How can I fix my Danfoss FP715 Thermostat?

How can I fix my Danfoss FP715 Thermostat? The display is not showing but the red lights for the hot water and heating are both on. I am unable to make any adjustments to the system. Please help :)


Oil boiler going out when it rains?

We have a Tranco boiler that always red lights (lockout) when it rains. We have checked the oil pressure and it is set at 120psi which is correct according to the manual. We have cleaned the photoc ... more


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Lockout after 2 or 3 minutes?

Hi, help we have an old Monoflame Minor burner, with a Danfoss pump. Changed the pump, coil, and motor two years ago, and been fine until now. It will run for 2 or 3 minutes, then cut out. The oil ... more


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Stuck wiring glow worm ultimate 70ff boiler?

I have a glow worm ultimate boiler and my system is a Danfoss heatplan pack with programmer and (2 x 2 port valves) the heatplan wiring looks straight forward, but confused with boiler looks like the ... more


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how do i fix my massey ferguson 375 tractor steering?

how do u set the danfoss timing and relief valves


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Radiator valve?

The plastic cap of the Danfoss radiator thermostat needs replacing because the small "lugs" have broken off. It is the one with the clamp which fits over the plastic lugs and attaches to the valve. ... more


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HEATING AND HOT WATER?

HEATING COMING ON WHEN ONLY HOT WATER IS CALLED FOR DANFOSS 3 PORT VALVE FITTED


Removal of anti-theft pin?

How do I remove what appears to be the anti-theft pin on a Danfoss thermostat in order to get to and free the 'temperature control' pin?


Danfoss motorised valve - 2 port?

Hi, My hot water is extremely hot. The cylinder stat works and is wired ok. I have replaced the head only of a Danfoss motorised valve. 4 core and earth cable, x1 wire is to the cylinder stat which ... more


change danfoss programmer?

my danfoss-randall time clock 102 is not working ,can I swap it for a 103 ,do I need to chnge some of the wiring


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danfoss horisontal radiator valve removal?

i have a couple of danfoss horizontal radiator valves that i am told that the needle inside is stuck. the 15mm pipe to the valve is hot but radiator is cold , not letting flow through the valve . how ... more


Lock out after service on Worcester Bosch 20/25?

Can anyone help - just had my fully functioning Worcester Bosch 20/25 boiler serviced. The engineer replaced the oil pump because he was concerned the fire up and timing was such that oil was pooling ... more


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danfoss thermostatic valve ?

one of our danfoss thermostatic valves is turned off but not working as rad. is roasting hot and my husbands getting hot flushes as a result. Please help. ps It is rather old would it be better to rep ... more


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