Known Test Procedures

[andy2]

Hoover Fridge / Freezer Mod HFA290

Hoover Fridge / Freezer Mod HFA290 but probably works with most similar

Fit a multimeter on min 20A range in series with N or L of supply (I use a 6ft adapted 13A adapter (GIAS patch cord)). Check stated current at each test phase.

1) HavingTHE REFRIGERATOR UNPLUGGED, TURN THE TEMPERATURE KNOB RIGHTWISE, UP TO THE “SUPER” SETTING (END OF RUN CLOCKWISE).
2) PLUG-IN THE REFRIGERATOR (OR, BETTER, FEED IT THROUGH THE MAINS SWITCH OF GIAS’ PATCH CORD).
3) THE GREEN LED LIGHTS-UP. WITHIN 7 SECONDS FROM IT’S LIGHTING, ROTATE LEFTWISE THE KNOB, UP TO REACH THE “0” (END OF RUN). IF THE ACTIVATION IS OK, THE YELLOW LED LIGHTS FIXED.

MISSING ACTIVATION IS CONFIRMED BY THE ONLY GREEN LED LIGHTED. UNPLUG THE FRIDGE AND WAIT 6′ BEFORE RETRYING.

CARRYING OUT OF AUTOTEST

•1st PHASE – DURATION ABOUT 7 SECONDS: IT’S BEING TESTED
• THE REFRIGERATOR’S NTC PROBE
• CURRENT TO THE FREEZER’S FAN MIN 1A
• CURRENT TO COMPRESSOR MAX 7A
• CURRENT TO THE REFRIGERATOR’S FAN (WHEN PRESENT)

•2nd PHASE – DURATION ABOUT 7 SECONDS: IT’S ON THE FRIDGE’S LAMP MAX 15W MIN 80 mA MAX 120 mA

•3rd PHASE – DURATION ABOUT 7 SECONDS: CURRENT TO THE DEFROSTING HEATER MIN 900 mA MAX 1A 233W

400 Litres – Top Mount – 700 mA 800 mA 165W
Combi – 300/350 Litres – 700 mA 800 mA 190W
Combi – 390 Litres – 900ma 1 amp 233W

•4th PHASE – DURATION ABOUT 7 SECONDS: Electric “OFF”
In this phase, it’s being fed the only microprocessor section of the electronic control board. MIN 60 mA MAX 80 mA

•END OF THE AUTOTEST ROUTINE:

ONCE THE AUTOTEST CHECKING ROUTINE IS ENDED, THE MICROPROCESSOR BRINGS THE APPLIANCE BACK TO NORMAL CYCLING, AFTER A 6 MINUTES DELAY TO BALANCE PRESSURES.

1st PHASE – DURATION ABOUT 7 SECONDS:

CHECKING THE CONDITIONS OF REFRIGERATOR’S PROBE

IN THIS PHASE, THE SOFTWARE TESTS THE CONDITION OF THE REFRIGERATOR’S NTC TEMPERATURE’S SENSING PROBE. IF THE PROBE SHOULD BE FOUND SOMEHOW FAULTY, THEN BOTH THE GREEN AND YELLOW LEDS FLASH TOGETHER FOR 7 SECONDS.
NEXT, THE ONLY YELLOW LED FLASHES, FOR 7 SECONDS. ONCE THE YELLOW LED STOPS FLASHING, THE AUTOTEST IS HALTED AND THE OTHER PHASES TO COME ARE JUMPED OVER. THE SOFTWARE STARTS IMMEDIATELY THE SPECIAL ALARM CONDITION (AS IT’S DESCRIBED NEXT), BY MAKING THE MOTOR RUN CONTINUOUSLY, IN ORDER TO PROTECT THE FROZEN FOOD. IF THE CHECK OF THE PROBE IS OK, THAN THE AUTOTEST GOES ON TO PHASE 2, 3 AND 4. HERE IT’S IMPORTANT THE READING OF CURRENT VALUES TO BE SURE TESTED COMPONENTS ARE OK.

ALARM CONDITION:
During the normal cycling of the appliance, the software performs checks of the condition of the probe at regular intervals of time. If a fault of the probe is confirmed after two checks in sequence, then:

The Yellow (SUPER) Pilot LED Is Lighted Flashing: The Compressor is Made Run Continuously (100{e5d1b7155a01ef1f3b9c9968eaba33524ee81600d00d4be2b4d93ac2e58cec2d})

Probable Reasons of the issuing of Alarm Condition:
A) Refrigerator’s NTC Temperature’s Sensing Probe being found SHORT or OPEN CIRCUITED.
B) The Refrigerator performed the last 3 Freezer’s Defrostings up to the designed limit time of one hour. This means that each one of the 3 defrostings lasted up to one hour. Reasons of this may be:

1) OPEN CIRCUIT DEFROSTING HEATER.
2) DEFECTIVE DEFROSTING THERMOSTAT AND THERMAL FUSE ASSEMBLY (SEE PREVIOUS).
3) FAULTY ELECTRONIC BOARD.

ALARM CONDITION:

HERE FOLLOWS A SUGGESTION ABOUT AN EASY TEST, HELPFUL TO IDENTIFY WHICH OF THE TWO REASONS (A AND B) IS THE ACTUAL CAUSE OF THE ALARM CONDITION, THAT’S TO SAY THE “SUPER” LED FLASHING:

1) ROTATE THE THERMOSTAT KNOB BACK TO “0” SETTING AND LEAVE IT ON “0” FOR 30 SECONDS.
2) RESET THE KNOB TO ANY SETTING, EXCEPT “0”.
IS THE YELLOW LED STILL FLASHING?

(A) YES – DEFECTIVE PROBE.
(B) NO – VERY LONG DEFROSTINGS.

WHAT MAY HAPPEN IN CASE OF OPEN CIRCUIT THERMAL FUSE?

CHECK CONTINUITY WITH METER ON CONTACTS 1 – 2 OF THE CONNECTOR. (Thermal fuse)

•EFFECTS ON THE BEHAVIOUR OF THE REFRIGERATOR:

DEFROSTING HEATER IS NOT WORKING. – THE DEFROST THERMOSTAT DOESN’T READ +10°C, SO IT STAYS CONTACTS CLOSED.

CONSEQUENCES:

TROUBLES RELATED TO THE BIMETAL & THERMAL FUSE ASSY:

Since the bimetal defrost thermosatat remains closed, the defrosting will reach the designed limit time of one hour. On ce this time is ended, the board halts the defrosting. Once defrosting is halted,the refrigerator goes back to the normal functioning, but this anomaly is kept in memory. If the anomaly (1 hour defrosting) is then repeated for three times in sequence, the Alarm Condition will be activated and the yellow led will be made flashing, for the User to ask for a Service’s intervention.

THE YELLOW “SUPER” LED IS FLASHING !!

Please note that extended time freezer’s defrosting can be due also to external causes, i.e. door was forgotten opened. If so, the next freezer defrosting to came (or at least the 3rd one) should set the situation. Trouble exists only if yellow led is still flashing after 24 hours.

WHEN IN DOUBT, CARRY OUT THE AUTOTEST.

WHAT ARE THE CONSEQUENCES OF SHORT CIRCUITED DEFROST THERMOSTAT?

PROBABLE CONSEQUENCES ON THE PERFORMANCES:

Since the defrost thermostat is short circuited, it remains with contacts closed, even after the temperature of + 10°C is reached
on the evaporator, so continuing to feed the heater. The heater goes on producing heat, until it’s reached the opening temperature of the safety thermal fuse (+ 75° C). This may happen during the 1st “faulty” defrosting (if the evaporator is poorly frosted) or for sure it will happen during the next defrosting to come. After the opening of the fuse, next defrostings will be performed without the heater. Their excessive duration will activate the Alarm Condition, confirmed by the yellow led flashing. Open fuse is mostly due to shorted bi-metal.

YELLOW “SUPER” LED IS FLASHING !!!

WHEN IN DOUBT, CARRY OUT THE AUTOTEST.

[andy2]

Gorenje Test program for WM with timers PG1 and PG2

Gorenje Test program for WM with timers PG1 and PG2
eg WA61111, WA61121, WA62121

Use in conjunction with fault codes in the other thread

MAKE SURE MACHINE IS UNLOADED !!

Press and hold buttons START/PAUSE and RINSE HOLD and turn round the program knob for 1 step in left (anti-clock side) ~10″

Self test of micro is executed and test program begins:

All LED goes ON for 5 sec.
• If self test O.K, than all LED OFF
• If self test is not O.K., than all LED are flashing. The rhythm of flashing is same that when some fault happen ( ¼ sec. ON and ¼ sec. OFF ).
~10″

Door lock control(activated door lock and wait, that contact is close – max.10 sec)
• If it is O.K. than all LED ON
• If is not O.K. the fault F2 display 2″

NTC control
(check resistance of NTC between 10 to 40°C , min. 2 sec.)
• If it is O.K. than all LED OFF
• If it is not O.K. the fault F1 display
~60″+20”

Water filling
Open the valves Hot Water, Man Wash and Pre Wash. Water goes in 3 different space in dispenser.
– HW : 5 ’’ (space 2), if it is connected to hot/cold water
– PW : 10’’ (space 1)
– MW : 10’’ (space 2)
– PW + MW : to reach level 1 (space 1,2 and 3)
max. time for all is 60’’
• If it is O.K. (before 60’’ reach level 1) than all LED ON
• If it is not O.K. the fault F3 display
~75″

Washing and heating
Washing: 15’’ON / 5’’OFF / 15’’ON/5’’OFF
– 3 times repeats washing
– last wash is in spin direction and without pause
– Heater ON all time of washing (75”)
All together is 75”. After this time switch OFF heater, washing goes to spinning.
• If it is O.K. (motor rotate in both direction) than all LED OFF
• If it is motor not O.K. the fault F4 or F5 display
~30″

Spinning with water
30’’ spin on max.500 rpm
(or speed define with Pad’s, if it is lower than 500 rpm)
– wait to drum stop
~40″

Draining– switch pump ON for 40 ‘’
Check if water level fall under level 1
• If it is O.K. ( in 40‘’ level under level 1) than all LED ON
• If it is not O.K. the fault F7 display
~60″

End spinning
pump stay ON
– 10’’ spin from 0 rpm to max. rpm
(if necessary switch ON tape field)
– 50’’ on max. spin speed
– wait to drum stop
– switch OFF all component
• If it is O.K. (motor reach max. spin speed) than all LED OFF
• If it is not O.K. the fault F8 display

Turn the program knob on 0 (OFF) position
End the test program

[kwatt]

Re: Known Test Procedures

Amica Washing Machines

Service Test Specifications – PG washing machine.

The servicing mode is a function of the machine that enables checking the operation of individual machine components and functions separately. This is not a self-test for detecting defective components, but only some assistance for the service technician in diagnosing the fault.

Inflow and outflow of water and power supply is required for carrying out full test. Certain checks do not require water.

Part I
Test start – switch to servicing mode

To secure against accidental launching, the servicing test is started with a special combinatio of dialing and pressing the EXTRA RINSE” and “SPIN OFF”:

Servicing Test Access Steps:
The machine must be in „READY” mode.
Set the selector in position 12 “SOFT RINSE”
Press the “extra rinse” and “spin off” buttons simultaneously and hold them while setting the following positions in the given sequence: 12,11,12,11,10,9,8,7,6,5,4,3,2,1
The “start/pause” LED starts to blink in red from position 9, showing that test programmes are being launched. Release the “extra rinse” and “spin off” buttons but continue the setting sequence as above.
Press the “spin off” button before switching to last position of sequence, i.e. position 1. Then, the machine will go to MANUAL TEST mode, which is signaled by yellow blinking of the “start/pause” LED.
To switch off test mode, press the “extra rinse” and “spin off” buttons simultaneously again in MANUAL TEST mode.

Part II
Washing machine testing. Ending the service test.

The machine is tested as follows:
turn the programme selector knob to the desired position – Note: do not turn through positions 10 to 12;
press and release the „START/PAUSE” button
note the machine behavior – only the “START/PAUSE” LED will stay on during this step, the other LEDs being off;
the test step can be interrupted through pressing the “extra rinse” and “spin off” buttons simultaneously again
before selecting next test step, interrupt (end) the previous step.
the door lock is only powered when the selected test step has been launched.
if you choose position 10, 11 or 12, the test will terminate without pressing “START/PAUSE” unless the machine is just performing a test step.

Tests on individual selector positions
Item Test: Execution:
1 Filling the machine to pressure control via wash compartment

Applying supply voltage to EV2 solenoid valve (to the right side when looking from machine front perspective). Voltage is disengaged when pressure control is switched.

2 Filling the machine without level control via rinse compartment

Voltage applied to both solenoid valves. Note: when pressure control overflow level is reached, the machine quits the servicing mode and displays error 4 – overfilling.

3 Filling the machine without level control via pre-wash compartment

Voltage applied to EV1 solenoid valve. See note to item 2.

4 Pump test / water drainage

Supply voltage applied to pump, draining takes ca. 80s after detecting the “empty” signal.

5 Heater test: heating up to preset temperature. Any temperature can be set, 40C is proposed.

More water is taken to the pressure control level via EV1 valve and heater relay goes on. The relay goes off when the selected temperature is achieved.

6 Engine test: washing movements.

The drum engages in washing movements: 12 seconds at a rate of ca. 53 rpm, 3 seconds break. Movements are alternately to the right and to the left, first movement clockwise.

7 Engine test: spin-drying cycle – rate can be selected

Water is drained (voltage applied to pump) and spin-drying cycle is carried out as in wash programme 8 of the machine.

8 Door lock activation.

Only the door lock is on.

[gandh1]

Re: Known Test Procedures

thank you ken 🙂

this wasnt a direct result of me speaking to simon earlier today was it? 😳

[Criscold]

Re: Known Test Procedures

Beko DE2431 + others with rotary switch

Functional test

to enter the functional test mode , select the knob position 2 while the DW is off
then press the start button and switch the DW on and keep pressing the button for 3 seconds.
All of the indicators turn on for 2 seconds after entering the short program mode.
The following Program lights blink if a fault exists
.
After entering the short program mode, press “start” button and the short program.begins the steps below.
1. Draining (15 seconds)
2. Water inlet (4.4 lt)
3. Water circulation , regeneration (60 sn),
4. Detergent (60 sn), heating (to 65° C) .
5. After reaching 65° , stops heating and water circulation. The water inside is discharged for 30 seconds. then Waits for
the start button to be pressed
Short program mode will be finished

In the case of a fault, the fault is shown by the following indicators.

All program follow indicators are off No fault
Washing indicator is on Water inlet or water counter is faulty
End indicator is on NTC is faulty
Both indicators are on Heater is faulty

All of the indicators blink after the functional test finishes in the case of no fault occurred

[Bernie]

Re: Known Test Procedures

Whirlpool 6th sense Whirlpool condenser Dryer AWZ 8477 all the red lights flashing – “empty water bottle” “clean the filter” and “clean the heat exchanger”

Turned it to 6 o clock press start 3 times turn clockwise 1 click and press start 3 times, it is now reset

Bernie

[Author]

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