Article reference KA-02032
We have made a video guide showing how the RXPW4N timer operates:
Watch on VimeoIn addition, you can also download the instruction booklet here.
If your timer is controlling hot water or a towel rail, the switching device was the RXPWIF, instructions here.
Note, this controller is now discontinued and spare parts are no longer available for it, but this article may help.
If you have a controller with "PW4" written on it, see this article.
Keywords: RXPW4N pilot wire timer panel heaters duoheat duo, RXPWIF