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Hi
I have a 12 year Hoover Ecologic Washer Drier (Model A8578 & Serial No A857811101476) that has starting overflowing with water through the overflow pipe at the rear of the machine.
The machine uses a small air pipe to use air pressure to switch off the water intake when the drum fills with water. This pipe is clear of sludge and I can hear the switch clicks when I blow into the pipe.
I’m unsure how many clicks I’m supposed to hear but if I into the switch at the top of the machine I can get the drum to tumble the clothes through the water but can’t get the water to switch off.
If however the machine is on a shorter cycle like cotton refresh for example, the water intake works fine and the machine runs fine with no flooding.
I suspect that maybe a switch setting for a longer wash is broken but I’m not sure.
Does this sound feasible, and if so, would this be cost effective to fix ?
Any advice would be much appreciated.
Thanks😕
Re: Hoover Ecologic Washer Drier Flooding Problem
Your age of machine may be a little out, 😉 Listed in pre 1993 manuals.
The pressure switch ( two different ones) are both 3 level switches, so if you blow gently into the hose you should hear 3 clicks under pressure, then three clicks on release of pressure. Although you say the hose is clear how is it fixed at its lower end. Is it connected to a plastic, egg shaped moulding at 6 o’clock on the outer drum backplate or does it go into a small plastic air bell inserted into the black rubber drain hose that goes between the drum and the pump. Blockages on either of these are very common, more so in the older egg shaped air bell. It is possible to clean out either configuration but often the amount of corrosion on the older type backplate can mean that this is only a temporary solution.
Jim.
Re: Hoover Ecologic Washer Drier Flooding Problem
Hi Jim
Thanks for the reply.
The pipe at the bottom is the latter one you describe with the plastic air bell going into the rubber drain hose. I can confirm that this is clear and is not causing the problem.
When I blow through the hose I indeed hear 3 clicks on increasing the air pressure and 3 when releasing.
As a test I attached a plastic straw to the switch at the top of the machine where the hose connects and started a wash cycle (Cycle E – Non Fast Colours). I heard the 3 clicks as I increased the air pressure but the water did not cut off.
I assume the 3rd click is to stop the water intake. Is it possible that the switch clicks but doesn’t function properly? Is this a common malfunction or is it more likely what the switch connects to, is more to be the problem ?If I use cycle G (Cotton Refresh) the machine carries out this cycle fine with water intake stopping when it should, so again seems to point to a switch sequence or beyond.
Are switch or controller parts for this machine still available and if so, are they expensive ?
Any advice / help would be much appreciated.
Thanks
Ian
😕Re: Hoover Ecologic Washer Drier Flooding Problem
The three levels are for different wash programmes, the higher levels are for woollens and rinse programmes.
If the pressure switch is operating correctly then it should isolate the fill valves when it trips. The only way to test the three levels is with a circuit tester or multimeter. Pressure switches do fail although not that often.
Some parts for this machine are becoming hard to get and to be honest, if the fault was in the control timer, your money would be more wisely invested in a replacement. The timer is well over £100.00 The pressure switch is not that expensive, should it turn out to be at fault.We do not advise, live testing, the pressure switch can be checked without the machine being plugged in, please take care.
Re: Hoover Ecologic Washer Drier Flooding Problem
Hi Jim
Thanks for your reply.
Do you have any form of circuit layout to indicate what wires are for what cycle on the switch?
The switch is a round device with 8 connections that I can see.
They have the following numbers beside them (11,12,13,21,22,23,31 & 32).
I assume the multimeter should give a reading between a pair when the machine is switched off.
I appreciate your warning to take care.
I’ve no intention of testing the switch while switched on.
Thanks
Ian
🙂Re: Hoover Ecologic Washer Drier Flooding Problem
It is very difficult to go into any great detail, two different timers, different pressure switches etc. all tech info is copyright and is of limited availability even to the trade.
Re: Hoover Ecologic Washer Drier Flooding Problem
Hi Jim
I disconnected the switch.
I found the following:
11 – 12 is a circuit (apply air pressure, switches correctly)
13
21 – 22 is a circuit (apply air pressure, switches correctly)
23
31 – 32 is a circuit (apply air pressure, switches correctly)It seems that the switch is functioning properly.
Leaves the timer as a possibility.
It progresses through the cycles fine so I suspect the timing aspect is right. If the timer unit is sealed then I suspect a new machine is my only option.🙂
Thanks for the help, most valuableRe: Hoover Ecologic Washer Drier Flooding Problem
Timer still available, now around £200. 😥
The pressure switch does appear to be functioning correctly.
You do seem to have an unusual fault but the engineer who has seen it all has not been born yet. 🙂
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