Halstead Ace HE 35 Error Code 1

[81ll]

Hi I'm new to fault finding and have come across this boiler which I haven't seen before.

- CH no problem
- DHW when the taps are mid - full no problem
- when DHW run at very low flow rate the boiler quickly displays the error code 1

What I have done:

- the temp differential between the flow & return is 18 degrees when at about 85 degrees & 6 degrees when cool
- I have removed DHW thermistor of the pipe and got the same issue
- Was thinking about checking the ohms but didn't know what valves should be, tried to call Halstead but the phone line indicated they were closed (it was only 4pm)
- The MIs state that the boiler will lock out when the temp reaches above 105 degree, when I had my probes on the flow & return the boiler was locking out at about 85 degrees

I'm thinking its the thermistors but don't want to change them if there ok.

Any suggestions, any help would be appreciated

 

[Atouchofgas]

Unfortunately we cant discuss gas appliances in the open. If your gsr pm one of the mods with a copy of your id badge and then we can discuss it in the closed forum

http://www.ukplumbersforums.co.uk/g...ic-forum/82396-entry-into-gsr-only-forum.html

 

[kris]

Or just post it in the private gas forum which is situated in the public one .

 

[81ll]

Pls discard this post, posted on wrong forum

 

[Atouchofgas]

Cannae see his badge on tapatalk

 

[Dotty]

Thread rehoused.

 

[Dotty]

And closed being as you've another one running.