I just purchased the MRC AC Sounder (No. 1815). No matter what I do, I cannot get it to enter program mode. The instructions say "tap the direction button repeatedly" however this does nothing. I have tried a postwar ZW, modern CW-80 and other small transformers to no avail. Is there some secret trick to achieving this? I have tried tapping the direction button at different frequencies, used different voltages, etc. No luck. I do not have the optional MRC remote.
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