Boiler receiver wiring - Danfoss RX1

[ianmcd]

OK so your wiring is correct , but the system pressure is far too low you need to take it up to between 1 and 1.5 bar, if that doesnt work come back but the wiring is correct, if you want to test the Danfoss RX1 with the power isolated put a link between terminals 2&3 or put the wire in terminal 3 into terminal 2 with the existing wire and the boiler should fire without putting the RX1 back on when you turn the power back on, if it doesnt it is not an external control fault

 

[bunkotungus]

OK so your wiring is correct , but the system pressure is far too low you need to take it up to between 1 and 1.5 bar, if that doesnt work come back but the wiring is correct, if you want to test the Danfoss RX1 with the power isolated put a link between terminals 2&3 or put the wire in terminal 3 into terminal 2 with the existing wire and the boiler should fire without putting the RX1 back on when you turn the power back on, if it doesnt it is not an external control fault

I increased the pressure but it did nothing. I put wire from terminal 2 and 3 together and the boiler didn't fire up when the power came back on. The only way I can get the boiler to fire up is with the Test switch that you can see on my previous pics. Does this mean something must have shorted inside the boiler? How should I troubleshoot this?

 

[ianmcd]

Have you re-set the manual over heat switch ?

 

[bunkotungus]

Have you re-set the manual over heat switch ?

How do I do that? I have unscrewed the black cap above the system pressure gauge and held the reset button which didn't do anything.

 

[bunkotungus]

The burner reset button also didn't do anything.

 

[bunkotungus]

@ianmcd @CBW
I just fixed it by putting the black wire with the browns.
Made a post on plumbersforums, a user suggested that and it worked. I was starting to worry that I had broke the new boiler.

 

[Deleted member 267285]

@ianmcd @CBW
I just fixed it by putting the black wire with the browns.
Made a post on plumbersforums, a user suggested that and it worked. I was starting to worry that I had broke the new boiler.

That seems odd, but glad it’s now working.

 

[ianmcd]

@ianmcd @CBW
I just fixed it by putting the black wire with the browns.
Made a post on plumbersforums, a user suggested that and it worked. I was starting to worry that I had broke the new boiler.

you have by-passed the Danfoss now, the boiler will be constantly on you have by-passed the controls