Over the last year, approximately, my hot water goes cold intermittently at very random times. I know some of it is due to usage as I am on night owl and I understand that. But today only one shower in the morning and I had a lukewarm one tonight., checked the meter and when all taps are off the metre does not move, so it is not a leak/overflow. Has happened maybe 10 times over the last year when usage was not excessive. Any ideas please?
ryanm2,
Mar 23, 6:03am
Presuming you are on a night rate , if you are having late showers or using hot water late at night / early in the morning as you suggest you are , then maybe you are not giving the hot water cylinder enough time to reheat properly. You should check what power plan you are on , if on day/night switch to an all day economy so the hwc will always be on.
tweake,
Mar 23, 6:26am
are you on controlled hot water? sometimes its not cold enough for the thermostat to come on when the power is turned on for the hot water. so it misses the first one. then it cools down during the day and then you use it before the hot water power is on again.
power plan won't change anything without changing how its wired. controlled hot water is controlled even if your on a non-controlled plan.
maclad,
Mar 23, 6:57am
Yes I think this is what I may need to do, thanks
marte,
Mar 23, 10:40am
How often does the 'night rate' power actually turn off?
retrogold,
Mar 23, 6:48pm
Meridian say from 7am-11pm the power is off for the water heater Marte.
maclad,
Mar 24, 3:22am
Thanks everyone I am going to change my plan
trade4us2,
Mar 24, 7:44am
My controlled hot water is almost never turned off even at dinner time, even though Huntly is burning coal at the moment. I have a pilot light on the supply.
ryanm2,
Mar 24, 6:49pm
Either you dont have controlled hot water or you are on a 20/4 plan. Some power co's put you on a controlled plan where for 4 hours a day they can turn your hot water off (but this is at anytime though , generally to load shed during peak times) . Caught me out once working on a HWC.
trade4us2,
Mar 24, 9:16pm
They turn the power off occasionally, maybe for half an hour or an hour at dinner time. It has not been turned off at all for months. Maybe there is a fault in my ripple control switch. Do I care? I made the injection transformer for Auckland ripple control in about 1968.
Huntly have stopped burning coal today, after coal registered as being burned yesterday. NZ power consumption: http://www.em6live.co.nz/Default.aspx
jenny188,
Mar 25, 12:01am
had a house with an inside switch-board and the meter would not occasionally pick up the Start( heat up) signal sent by the Power Co. It was triggered on a radio frequency. So the water would not heat up untill the next signal was sent, the following day.
trade4us2,
Dec 5, 11:47am
Maybe when they installed my smart meter they did something wrong. I used to hear the ripple control signal in my audio amplifier at 10 or 11pm at night, but they almost never turned my heater off.
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