Electrolux iE0 error

[Bepi63wg]

Hi.
My dishwasher Electrolux ESL8315RO display a new error iE0. The meaning should be “check the spray arm level for flow control position”. I tried run the machine empty but error doesn’t disappear.
The machine doesn’t heat during the cicle but I check in diagnostics mode all the function works fine (heater, motor, charge and discharge water). I replaced 6 months ago the tacho coil and the heater (but at the time the errors displayed were different. Many thanks for any suggestion.

[electrofix]

The flow control is a motorised valve in the sump that alternates water flow between the bars

Dave

[Bepi63wg]

Thanks for your detailed reply , do you think I have to replace the unit or try to dismantle to clean or check if something is wrong inside ?

[electrofix]

well you can start by checking the coil resistance to see if its open circuit

its either

faulty or no power is getting to it due to a wire broken or timer problem

Dave

[Bepi63wg]

Hi
I checked the flow control extracting the synchronous motor and the microswitch. Both run , I applied 220v to the motor to check rotation and it’s ok, checked switch on-off by the tester. Even the mechanism works properly. Nevertheless the issue remain, the machine complete the cycle without heat water. The resistance is ok but no voltage arrive on the cable. Are the other suggestions ?

I found this description of the error:
iD0.
9.2.13 “iE0” code family: Flowmeter position
– The alarm is stored and displayed only in service mode; there is a new control for each new phase.
– The alarm is signalled if the desired position of the flowmeter is not reached after 120 sec; the
heating element is deactivated.
– If the signal from the flowmeter does not change after 15 sec, the software suspends the positioning
for 2 sec and resumes after another max 120 sec.

[electrofix]

i assume whats hapening is one of 2 things

either
the motor is not being energised
or
the motor is running but the switch is not working or the board does not detect its operation

Dave

[Bepi63wg]

Ok I’ll check if voltage reaches the motor. The doubt is only on which pin to misure. I belive that “desired position of the flowmeter ” mentioned in description error is when switch is closed then there must be 220v between pin 1 and 2. I presume that 220v on pin 1 is the signal for the board to stop the rotation of the motor.

[Bepi63wg]

I checked the continuity of the three cables from plug to the card and it’s ok. Then I disconnect the plug from and when the machine is running measured the voltage that is 60v. Is this voltage right? Furthermore I extract the motor and switch trying to press and depress the switch. The motor rotates for a quarter turn then stops for a while and does another quarter turn. It is possibile to do this for a short time ’cause water loss from the flow regulator without the motor. Is it worth replacing the flux regulator since the voltage is 60 volt or is it a board problem?
thank for reply

[electrofix]

is there a voltege on the motor ?

should be 240 v cant see it being 60 v

Dave

[Bepi63wg]

Yes there is. The synchronous motor is a 50SM16 220v – 50/60Hz – 3.5W. Looking at the scheme the supply come from a TRIAC. Maybe the designers reduced the voltage to decrease the motor speed . I guess that TRIAC either it works or it doesn’t since there is voltage I presume it’s ok. Is there a way to know the right output voltage from the board because on the scheme is not shown.

[electrofix]

no you cant run a 240 v motor on less voltage and its synchronous its linked to the frequency of the AC supply so voltage cant change speed

Dave

[Bepi63wg]

I checked the flow regulator mounted on the water sump. I disconnected cable from board and powered by 220v the motor rotation was regular as well as the switch activation and deactivation (measuring the voltage on the switch pin). Then I guess the flow regulator is ok. I removed the board to see if there was visible damages (overheating, burns..) but from this side it’s all right. The TRIAC 102H6D ( NXP) checked by tester seems ok (no short circuit or other) as well as the diode US1M6SY which receive the signal from swich on flowmeter. Then I don’t know what else to do.

[electrofix]

ran out of idea myself as you seemed to have checked it all

if its a board fault it starts getting expensive

Dave

[Bepi63wg]

Yes, the board’s cost is 160€ (130 GBP) then is not worth to replace on a six year old machine. I found a french site (activating the automatic translation) with a similar voltage issue (60v instead 220v) where the TRIAC 102H6D ( NXP brand) was out of order. Replacing it the machine started working again. This is the link

https://bricolage.linternaute.com/forum/affich-121207797-machine-a-laver-sechante-electrolux-e10

now I try to search the TRIAC or equivalent

[electrofix]

Nxp Triac – 102h6d Triac, 600v 0,2a, Smd Soic-8 [Nxp] – £4.99 : Spares2Repair

[Author]

Posts