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Looking through the user manual, the specs given for this machine are 65 litres in total on program number 2 (7kg load).
During investigation of a fault, I noticed this program used around 55 litres (captured in a large container). The wash cycle uses around 10-11 litres and the remainder is split between the three rinse cycles (14-15 litres per rinse). Somewhere in the program, this machine is not reaching the correct level and I suspect its the wash cycle (the water used to lap the bottom of the door, now you cant see any residue splashing around).
The pressure switch appears to be working fine, although having a schematic of the switch contacts would be helpful.
Can anyone suggest what the average washing machine uses during a wash cycle for a 7KG load, or even better the exact specs for this machine ?
Re: Hoover HF7130M water usage during each cycle
You can’t do that.
The water levels on almost every modern washing machine are dynamic, determined by the load in order to save energy because you’re not heating more water than is required for the load.
The figure quoted in the manual will most likely be for an optimum load setting in test conditions or the maximum that will likely be used.
K.
Re: Hoover HF7130M water usage during each cycle
Hi Kwatt
I’m measuring the usage on a machine full loaded (7kg) without the extra rinse or mega wash and its still falling over 10 litres short.
It’s a 10 year machine with no micro processor control, so I assume its deriving the water level from the pressure switch.
I would have thought the marketing people strive to have the specs showing the least water usage, so would have expected hoovers 65 litre to be more like 70 in reality. Hence why it seems strange to be so far under.
Re: Hoover HF7130M water usage during each cycle
Okay, so as I was trying to explain he other day to someone…
Is that a kilo of denim or a kilo of duvet?
Completely different volumes, completely different densities, completely different absorbencies and so on.
In other words, measuring the weight of your laundry is a totally pointless endeavour as it is completely meaningless. Which makes the whole notion of using kilogram or any weight rating for a washing machine or tumble dryer seem pretty stupid and pointless because, it pretty much is.
What it does do is to allow marketing departments confuse the daylights out of people that don’t know any better.
The important figure is the volumetric capacity of the drum and the volume of the laundry you put in it.
Put in too much, it won’t move and therefore not wash properly. Among other issues caused by overloading and under loading.
There is a pressure switch indeed, looks like a multi-level one.
If there was a fault with that the machine would halt though so I strongly suspect you’re looking for a problem that doesn’t exist because, a pressure switch either works or it doesn’t. It’s a simple switch, either on or off, at the level (pressure) governed by the diaphragm inside it.
In 20+ years I have never seen one report an incorrect level although I have adjusted them on older machines to increase water levels for customers. I would not advise doing that however if you don’t know what you’re about.
K.
Re: Hoover HF7130M water usage during each cycle
Hi Kwatt
That makes perfect sense.
However, if I use a know quantity ( several towels already damp) and put them through on the same cycle, one with mega wash on and one with mega wash off. I should see a difference in the water usage for the wash cycle only. With this machine I don’t.
The mega wash should use more water and a longer cycle. The cycle is longer, but it uses the same water for the same load when the mega wash is switched off. I’m thinking the clue is in what the switch controls ? A second level on the pressure switch (dual level switch perhaps).
Re: Hoover HF7130M water usage during each cycle
Have you ever heard the term “placebo” being used… 😉
A lot of these things seem to do little more than bring up an icon or LED. Most are completely pointless as well as seldom used or checked.
It is possible that the switch is faulty of course but, if it doesn’t stop the machine from working I wouldn’t have thought so. In the end though, I suspect that the difference will be negligible in real world use.
K.
Re: Hoover HF7130M water usage during each cycle
TBH the pressure switch is one of the most reliable parts in a machine. The higher levels are mainly used for the woollen programmes.
If they go in dirty and come out clean and spun correctly I don’t see a problem. 😕
Re: Hoover HF7130M water usage during each cycle
Clothes come out dirty unless 5-10 litres of extra water are added.
Weak diaphragm on the switch which has taken it out of spec. New switch, new machine, clean clothes.
Re: Hoover HF7130M water usage during each cycle
Bana wrote:Clothes come out dirty unless 5-10 litres of extra water are added.
Hmmm, 5 to 10 litres of water throughout a full cycle will not radically alter the wash performance. A faulty heater or serial overloading might.The only time I have ever changed pressure switches in the past 40+ years is due to faulty or burnt out contacts, never, ever changed one to allow higher fill.
Part number of pressure switch is 28375048. 😉
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