Hi, the municipality in Pretoria changed my conventional electricity meter to a prepaid (Hexing) meter yesterday. I noticed later that the water was not hot, and when I checked the geyserwise monitor, it was blank - receiving no power. It is definitely connected to the swap because of the timing - it has been working and was working up until the swap. Any idea why this happened and how/ if I can rectify the situation before calling someone out? Many thanks in advance.

Side note: It is a solar geyser controlled by Geyserwise. Furthermore, the geyser is the only item in the house that is not connected to solar, but only to Eskom power. (Not sure if this is relevant)

Loaded any credits for the meter?

Yes, there are credits loaded and everything else is working fine. Do you think there is a minimum amount of credits required? There are about 85 units on at the moment.

If there are units loaded, the meter should allow power through.

Have you checked the main breaker and geyser breaker?

Yes, both are on, but no power to the Geyserwise. According to Geyserwise, the surge when the power was switched on again could have blown a fuse or the CPU.

What about a breaker at the meter?

If you don't have a voltage detector or multi-meter, you would have to get someone to do fault finding.

But why did it not affect the conventional meter?

57 minutes ago, frivan said:

hat about a breaker at the meter?

If you don't have a voltage detector or multi-meter, you would have to get someone to do fault finding.

Is anything else in the house that runs thru eskom

Everything at night once the battery has reached the prescribed level of 30%.
The geyser hgowever has always bypassed this and worked exclusively on Eskom. No settings have been changed - and evertything works except the Geyserwise, which has no power since the meter exchange.

The issue has been resolved. Turns out installation was done incorrectly in that they swapped the live and neutral wires going into the house. Couldn't get hold of them to fix, so the electrician swapped the wires on the DB box and voila - the Geyserwise is working again. Thanks for all the input and support.

9 minutes ago, Louis B said:

Couldn't get hold of them to fix, so the electrician swapped the wires on the DB box

Let's hope the City doesn't suddenly remember that they miswired that meter and come to fix it.

1 hour ago, Louis B said:

The issue has been resolved. Turns out installation was done incorrectly in that they swapped the live and neutral wires going into the house. Couldn't get hold of them to fix, so the electrician swapped the wires on the DB box and voila - the Geyserwise is working again. Thanks for all the input and support.

Interesting. I presume the connections on the meter were not sealed with the anti tamper seal that should be crimped on the terminal cover?

On 2026/03/25 at 11:42 AM, Scorp007 said:

Interesting. I presume the connections on the meter were not sealed with the anti tamper seal that should be crimped on the terminal cover?

Sounds more like the electrician made a outside problem, a inside problem for whomever does work on the DB inside the house in the future.

I guess if it is a choice between no hot water and getting the municipality to rectify the issue, the path of least resistance triumphs, not unlike Ohms law. 😄

This issue has been resolved. I got the installing contractor back, and they immediately recognised and admitted their mistake. They swapped the lines back on the DB board (live = live and neutral = neutral) and then when they swapped their lines to the correct position, a "tampering" issue was triggered and the new meter was crippled. To get an overriding code took almost 2 days - but in the end, all good. Wiring is all in order and hot water
The contractors are not always that good or reliable - so we just have to hope for the best.

Case closed - thanks for all the support and assistance.This issue has been resolved. I got the installing contractor back, and they immediately recognised and admitted their mistake. They swapped the lines back on the DB board (live = live and neutral = neutral) and then when they swapped their lines to the correct position, a "tampering" issue was triggered and the new meter was crippled. To get an overriding code took almost 2 days - but in the end, all good. Wiring is all in order and hot water
The contractors are not always that good or reliable - sop we just have to hope for the best.

Case closed - thanks for all the support and assistance.