Hi. I had a call out yesterday to look at a Credanet storage heater.

I understand that Creda no longer make the system although only 5 years old.

The PCB had burnt out which also appears to be a common problem with the heaters. I took a matching PCB from a spare heater on site and the peak boost side fired up.

The customer still hasnt got any off peak through it. All supplies are ok to the switch and through to heater from MCB's.

Does anyone know if the PCB's has to be re paired up with the wall mount controller and if so - how?

The PCB didn't have any press buttons on it. I cant find any user manuals on line for the heater CNT18CW or its wall mount controller.

Could anyone assist please?

Thank you

Have you googled it, some info came up when I did

yes - Google is very helpful. Says - Bin system - do not touch.

CEF have replacement PCB part number. Thats about it.

Nothing on re programming PCBs etc

Found this on the 'interweb' Does this help?

To reset a CNT18FW heater, first be very careful not to electrocute yourself . Switch off both supplies, and remove the lower pannel. Remove the 2 leads to the PCB from the room temperature sensor, and replace with a short between the two pins. Check nothing else is shorted, and power on. After 5-10 sec, the LED should flash, indicating the heater has been reset.

To reset the controller, dis-connect from the mains, ans set the battery switch off. Re-connect/disconnect again, and switch battery on. It should now be factory reset.

The link is:
http://www.houlihane.co.uk/blo...r-installation/


Have you tried phoning Dimplex who have acquired (some years ago) the Creda name for storage heaters?

Regards

Mike

Hi Mike, thanks for that - I will try Creda when they open on Monday morning. Many thanks for the link.

Hi Guys, just had a look at info on this subject, Dimplex know nothing about credanet since they dumped the creda guys after take-over. I've worked on lots of these systems and know most of the problems. The item about shorting out pins is silly, it's only a thermocouple.
There are 2 different but externally identical series of these heaters, the Mk 1s having 3 blocks of DIP switches and Mk 2s with software addressing. If there's demand, I could set up a subscription web page for this. (recently 'let-go' by a big user of c'net!)