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vaillant ecotec plus 612 - error V.61

batarcam 8610 13
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  • #1
    batarcam
    Level 10  
    Hello everyone

    I have such a furnace vaillant ecotec plus 612 and this error V.61 is displayed.
    After pressing the chimney sweep button for a while it is good and then the same error V.61.
    I am asking for any suggestions and help.

    vaillant ecotec plus 612 - error V.61

    vaillant ecotec plus 612 - error V.61
  • #2
    irus.m
    Heating systems specialist
    F 61-Gas valve control fault. Very enigmatic description.
    The reason can be anything from automation to a gas unit, bad connections on tarnished electric contacts, etc.
    When was the solid review done? Maybe all you need is a good overhaul of the boiler ?.
    greetings
  • #3
    batarcam
    Level 10  
    Thank you for the hint.
    I will do a solid review with the service.
    After I will write what was
  • #4
    kch70
    Level 7  
    I have the same thing with ecoTEC plus VC PL186 / 3-5 - error F.61.
    And what a thorough / decent review helped. Is this something more serious?
    Thanks for the info.
  • #5
    VPS
    Level 22  
    With error f.61 it is necessary to check whether 22V DC voltage is reaching the gas unit from the main board. Then check the coil resistance in the gas assembly.
    Often the reason for the error f.61 is a motherboard failure.
  • #6
    kch70
    Level 7  
    Thank you for the information.
    Is a symptom of a motherboard failure can also be large pressure peaks between the furnace rest and its operation. (during standby 1.2 bar, heating of water in the tank 1.6, and heating operation up to 2.4).
  • #7
    VPS
    Level 22  
    kch70 wrote:
    Thank you for the information.
    Is a symptom of a motherboard failure can also be large pressure peaks between the furnace rest and its operation. (during standby 1.2 bar, heating of water in the tank 1.6, and heating operation up to 2.4).

    No
    These symptoms may indicate an inadequate pre-pressure in the expansion vessel or an expansion vessel that is too small for the volume of water in the heating system.
    A failure of the pressure sensor itself cannot be excluded.
  • #8
    kch70
    Level 7  
    Thanks. The furnace has been working for 8 years without problems. I will check the diaphragm vessel first.
    greetings
  • #9
    kch70
    Level 7  
    Thanks for the advice. After replacing the motherboard - turning off the oven ceased (error F.61 disappeared).
  • #10
    boodles
    Level 2  
    Hi,
    did you replace the motherboard in the oven yourself? If so, where did you buy? And how much did it cost you?
    I am asking because I have such a problem.

    greetings
    B.Art
  • #11
    kch70
    Level 7  
    boodles wrote:
    Hi,
    did you replace the motherboard in the oven yourself? If so, where did you buy? And how much did it cost you?
    I am asking because I have such a problem.

    greetings
    B.Art


    Hi
    Replacement and purchase of parts (motherboard) I commissioned an authorized service technician (purchase only in the service network). Purchase of the plate approx. PLN 900 plus replacement PLN 100. Costs should close at PLN 1000. A bit is but better than replacing the stove. Mine has been working for almost 10 years.
    greetings
  • #12
    boodles
    Level 2  
    In the end I did it too. 900 disc and service - 1300PLN. The service technician convinced me that this is better because there is a guarantee. My oven also works 10 years.
    He advised me to apply to the insurer because the board broke due to overvoltage. I have issued an application and I am waiting for a refund.
  • #13
    Qdlaty78
    Level 12  
    I hook up the topic with insights. Error f.61, while maintaining the correct operation of the gas unit (after resetting the stove it works several dozen hours) is the fault of the capacitors. For me (Ecotec plus VC186 / 3-5) there were just such symptoms. It works correctly, nicely and in general, until suddenly (often synchronously with the switching of the multi-way valve) the flame goes out and the error f.61 crashes. The band coil had the correct resistance (as I remember correctly 330Ohm). I measured the voltage on the coil during operation - it should be 22V and it was 17V. This caused the valve to open, but any increase in current consumption from the 24V power supply on board or other destabilization, e.g. a fluctuation of the mains voltage, caused the valve to close. I replaced 2 capacitors (470uF / 35V / 105C, I bought identical Epcosy with luck).
    It seems to have helped. The furnace is working properly, the voltages are correct, the family is happy.

    ps This is definitely a repair for someone who has an idea about electronics and the operation of the furnace itself. Prudence and attention are required. The coil may have the correct resistance, but e.g. the valve may have a mechanical fault. The controller will report the same error, because it checks whether after opening the valve and applying the spark a flame is ignited (based on the ionization of the ignition electrode). Rummaging at the gas valve itself is absolutely unacceptable, as are repairs when additionally F.62 appears, which means the ionization current is too high. As long as it results from dirt on the electrode, it is a small matter to be cleaned. However, the same error can mean that the gas valve does not close, which may cause a gas leak and explosion.
    pps but I don't know myself, I'm not a vaillant serviceman ;)
  • #14
    marcinekmm
    Level 12  
    Qdlaty78 wrote:
    I stick to the topic with observation. Error f.61, while maintaining the correct operation of the gas unit (after resetting the stove, it works for several or several dozen hours) is the fault of the capacitors. I had just such symptoms (Ecotec plus VC186 / 3-5). It works fine, fun and everything, until suddenly (often synchronously with the switching of the multi-way valve) the flame goes out and the error f.61 is triggered. The band coil had the correct resistance (330 Ohm as I remember correctly). I measured the voltage on the coil during operation - it should be 22V and it was 17V. This caused the valve to open, but any increase in current draw from the 24V power supply on the board or other destabilization, e.g. voltage fluctuations in the mains, closed the valve. I replaced 2 capacitors (470uF / 35V / 105C, I bought identical Epcos by luck).
    Looks like it helped. The stove is working properly, the tensions are correct, the family is happy.

    ps This is definitely a repair for someone who has an understanding of electronics and the operation of the furnace itself. Prudence and attention are required. The coil may have the correct resistance, but e.g. the valve may have a mechanical failure. The controller will report the same error, because it checks whether the flame ignites after opening the valve and giving a spark (based on the ionization of the igniting electrode). Fumbling with the gas valve itself is absolutely unacceptable, as are attempts to repair when an additional F.62 appears, which means too high ionization current. As long as it is due to dirt on the electrode, it is a small matter to be cleaned. However, the same error may mean that the gas valve does not close, which may result in gas leakage and explosion.
    pps but I don't know myself, I'm not a vaillant service technician ;)


    I confirm the above diagnosis and the solution to the problem also in my case. The purchase of original capacitors for literally PLN 7 (I paid so much for 10) and their replacement on the stove's main board did the trick. The job is indeed a watchmaker's job, but somehow it worked, and five are flying.
    Thank you for your help in solving the problem.