In message
Grimly Curmudgeon wrote:

It was somewhere around Barstow, on the edge of the desert, when the drugs
began to take hold. I remember "Christian McArdle"
saying something like:

Perhaps the installers were cretinous and replaced with a short element,
although the fact that the thermostat was 18" might suggest otherwise.

Likely the cretinous installers had only a dual element one with them and
used that.

The cretinous installers only wired up one element - the short one. I'd bet
the feed isn't 4core and the old switch is merely on/off with no bath/sink.

He can connect the long element instead of the short one.

Only one set of connections on the end of the immersion heater.

--
Dane Koekoek