Ravenheat RSF82E No Hot Water

[picasso]

so try the hot water on DHW/CH, if it doesnt work its back to the board, and you could measure the new thermistors to be sure they are within limits.(just to keep tony happy)

 

[Agile]

The system pressure switch has the same effect on CH or DHW.

Thats to stop the boiler working if the pressure is too low, typically below 0.6 Bar.

Tony

 

[v8cavalier]

I tried that, still no hot water in DHW/CH position sadly!

What readings am I looking for on the thermistors please?

 

[Agile]

I think they are about 25 k when cold.

Most other boilers are 13 k though.

Tony

 

[v8cavalier]

I'm getting 50.4 and 53K... Boiler is cold - last time the thermistors played up though it knocked the CH out straight away..

 

[picasso]

I dont know what the sensors should measure but I would take a guess with both reading roughly the same they are ok.

 

[v8cavalier]

Is it still looking like the control PCB then? or will the lack of continuity on the summer/winter switch on the DHW setting on the main switch cause me problems?

Sorry for all the questions, I'm a right wuss when it comes to cold showers!

 

[picasso]

no the DHW/CH switch is ok, looking more like the main PCB, but as always there are no guarantees.

 

[v8cavalier]

Rubbish!

At least now I have some piece of mind that i'm not going mental as it should work but doesn't!

 

[Agile]

It should not work if there is a fault.

I have just been looking at the manual for the boiler.

I do find it annoying that they do niot put the sensor resistance in their book.

At their place John Wilson said they were all 25 k. However, I thought that I had measured some as 13 k.

Tony

 

[vini297]

I would change the wires around on the microswitch as I changed the diverter and put the wires the wrong way around, so only I called a proper plummer he put this right what a plonker I am!!!!

 

[Slugbabydotcom]

It should not work if there is a fault.

I have just been looking at the manual for the boiler.

I do find it annoying that they do niot put the sensor resistance in their book.

At their place John Wilson said they were all 25 k. However, I thought that I had measured some as 13 k.

Tony

10k thermistors on these 007TER05005/0 Here's a resistance chart I got from John Wilson who definitely said they were 10k

BTW this post is 2 1/2 years old .... just saying!