Sewerage

Vaillant gas boiler error codes, icon designation and troubleshooting. Error codes for a gas boiler vailant, designation of icons and troubleshooting Gas boiler double-circuit vaylant 20 kV

Wall-mounted gas single-circuit boiler with a capacity of 20 kW for heating and hot water preparation in an additional storage boiler. Forced removal of combustion products.

Designed for installation in apartments, houses and country houses.

The boiler belongs to heating appliances of increased comfort, it is easy to use and maintain.

Using the liquid crystal display, you can continuously receive information at any time during the operation of the boiler.

The display allows you to constantly monitor the entire process.

Key Features:

Single-circuit gas boiler
. Closed combustion chamber
. Power 20 kW
. Power is regulated by a modulating burner
. Forced evacuation of combustion products through a certified chimney / air duct system
. Can be used in dusty environments
. Built-in 3-way diverter valve
. Possibility of preparing hot water in an additional storage boiler
. Suitable for reconstructed and under construction houses and apartments
. Possibility of installation in a residential area
. Minimum side clearance required 10 mm, all units accessible from the front
. Possibility of cascading
. built-in circulation pump with automatic step change
. Closed expansion tank
. Automatic air vent
. Automatic adjustable bypass valve, safety valve
. Intelligent pressure control in the heating system
. Copper primary heat exchanger with average efficiency>=91%
. Chrome-nickel steel burner
. Integrated DHW cylinder control
. Permanent frost protection
. Protection against jamming of the pump and 3-way valve when they are idle for more than 24 hours
. Switch "WINTER / SUMMER"
. Possibility of setting to partial power in heating mode
. Electronic ignition and control of all functions
. LCD display with backlight, push-button control
. Internal software for status monitoring, parameter setting and troubleshooting
. Connecting kit included in the scope of delivery
. Integrated switching module for eBus interface
. Possibility of work on the main and liquefied gas
. Warranty 2 years

Contact our experts and get advice on how to choose and buy a vaillant gas boiler, as well as order delivery and installation at the best price.
Our manager will orient you on the characteristics of the boilers, clarify prices and availability.
You can get a price discount if you buy from us gas boilers vaillant wholesale or order installation and maintenance services for the boiler room.

Ecolife specialists are ready to install the boiler according to best price. Estimated cost installation of the boiler can be viewed in the Heating installation section, as well as clarified by phone.

Ecolife Group professionally performs the installation of heating systems, taking into account the requirements of manufacturers of equipment and components operating normative documents and safety technology. By ordering a turnkey heating installation from us, you can be sure of an excellent result!

OUR SERVICES

The Vaillant manufacturer gives a 2 year warranty on its equipment, unless stated otherwise.

The manufacturer's warranty is valid only if the installation and commissioning were carried out by a certified employee of a specialized organization in accordance with the regulations in force in the territory. Russian Federation legislative and regulatory acts.

The specific conditions of the warranty and the duration of the warranty period are established and documented at the time of sale and commissioning of the machine. Pay attention to the need to fill in the "Sales Information" section, which contains the serial number of the device, sales marks and corresponding seals, sales dates and seller's signatures in the warranty cards located on the back of the product passport.

The manufacturer's warranty does not apply to products whose malfunctions are caused by transport damage, violation of the rules of transportation and storage, the use of non-freezing coolants, contamination of any kind, including hardness salts, water freezing, unqualified installation and / or commissioning, non-compliance with the instructions for installation and operation of the equipment and accessories to it and other reasons beyond the control of the manufacturer, as well as work on the installation and maintenance of the device.

The established service life is calculated from the moment of commissioning and is specified in the documentation attached to a specific product.

The Vaillant factory guarantees the availability of any spare parts for this product for a minimum of 8 years after it has been discontinued.

For Vaillant equipment and accessories, the manufacturer sets a warranty period of 2 years from the date of commissioning, but not more than 2.5 years from the date of sale to the end user.

Spare parts are guaranteed for 6 months from the date of retail subject to installation of spare parts by a certified Vaillant technician.

In case of partial or complete absence of information about the sale and / or commissioning, documented, the warranty period is calculated from the date of manufacture of the device. The serial number of the product contains information about the date of manufacture: numbers 3 and 4 - the year of manufacture, numbers 5 and 6 - the week of the year of manufacture.

Delivery in Moscow 500 rubles
Delivery within MO: 500 rubles + 50 rubles/km from Moscow Ring Road
Delivery across Russia - transport companies
Pickup: free

You can always specify a convenient delivery date for you (but not less than two working days) when agreeing on an order. Delivery of goods is carried out from Monday to Friday from 12:00 to 18:00

Delivery at a later or earlier time interval is agreed individually with the Buyer and is carried out for an additional fee.

Delivery on Saturday, Sunday and public holidays (as agreed)

Delivery on weekends and holidays is carried out at the request of the buyer, upon confirmation of the application for 2 working days.

Delivery on weekends and holidays is carried out at the request of the buyer for an additional fee, upon confirmation of the application for 2 working days.

Pickup

You can pick up the order yourself at the pickup point at Podymnaya St., 14 building 37.

Self-delivery of goods is carried out daily except Saturday, Sunday and public holidays after confirmation by the sales officer.

Delivery terms

Delivery of orders placed through the Ecolife online store is carried out to the entrance or to the place where a truck can easily drive up and where you can unhinder the unloading of goods, as well as to the points of acceptance of cargo by transport companies transporting to the regions.

The driver of the delivery service can provide the services of a loader only by prior arrangement for an additional fee.

Upon delivery to the Buyer, the seller is responsible for appearance goods until the moment of its acceptance and transfer to the Buyer. Claims for the appearance and configuration of the delivered goods, in accordance with Art. 458 and 459 of the Civil Code of the Russian Federation, it is possible to present only before the transfer of the goods by the Seller to the Buyer. From the moment of acceptance and transfer of the goods, the seller's obligation to transfer the goods is considered fulfilled. The fact of acceptance of the goods by the Buyer is confirmed by the signature in the "Purchase and Sale Agreement" in the column "Acceptance and Transfer Certificate". If the appearance or packaging of the goods do not correspond to the proper quality, the buyer has the right not to accept the goods and not to sign the documents.

Payment

Currently, the Ecolife online store offers the following payment methods for orders:

Cash on delivery
Upon delivery of the order, as well as upon self-receipt of the goods at the pickup point, you can pay for the order in cash at the time of its receipt.
Payment by bank transfer
Payment by details to the company's account upon completion of the receipt in the bank or through the Internet bank. After placing an order, you will receive an invoice for payment and a receipt with our details. The prices indicated on the invoice are final and include VAT. The issued invoice is valid for 5 calendar days. This payment method can be used through any bank operating in Russia.
Note:
Banks charge a fee for money transfers. Check with the bank where you plan to pay the receipt for information on the amount of the commission fee. When choosing this payment method, please wait until you receive an invoice.

The Vaillant atmoTEC plus VUW gas boiler is new in 2015. This is a wall-mounted heating boiler with natural exhaust of combustion products. The atmoTEC atmospheric boiler uses air taken from the room for combustion and requires a classic chimney for the natural removal of combustion products. The VUW marking means that this model is a two-circuit one.

Features of Vaillant atmoTEC plus VUW boilers
- Modulating burner made of chromium-nickel steel to control the boiler output.
- Integrated hot water preparation.
- Improved DHW control.
- Natural removal of products of combustion.
- Hot water temperature control.
- Automatic switching to the mode of preparation of hot water at its expense from 1,5 l/min.
- Heating power control depending on the flow rate and temperature of the heated water.
- Minimum side clearance 10 mm, all nodes accessible from the front.
- Installation in a residential area is possible.
- Liquid crystal display with backlight, push-button control.
- Status monitoring and troubleshooting through the diagnostic system.
- Built-in flow plate heat exchanger for heating hot water.
- Built-in circulation pump with automatic stage switching.
- Closed expansion tank.
- Automatic air vent.
- Safety valve.
- Motorized priority diverter valve.
- "Intelligent" pressure control in the heating system.
- Copper primary heat exchanger.
- Frost protection.
- Protection against jamming of the pump and three-way valve.
- Modes "Winter" and "Summer".
- Possibility of setting to partial power in heating mode.
- Electronic ignition and control of all functions.
- The delivery set includes a connecting set.
- Built-in switching module for e-bus interface.
- Not used in cascading installation!

Specifications

Heating boiler type:	gas, convection
Burner:	gas
Number of circuits:	double-circuit
Thermal power:	7.60 - 19.70 kW
8.90 - 22.20 kW
The combustion chamber:	open
efficiency:	91 %
Control:	electronic
Installation:	wall-mounted
Primary heat exchanger material:	copper
Secondary heat exchanger material:	stainless steel
Mains voltage:	single-phase
Built-in circulation pump:	there is
Built-in expansion tank:	yes, 10 l
Fuel:	natural gas, liquefied gas
Consumption natural gas:	2.4 cu. m/hour
Liquefied gas consumption:	1.71 kg/h
Nominal pressure of natural gas:	13 - 20 mbar
Heat carrier temperature:	30 - 85 °С
Temperature in the DHW circuit:	35 - 65 °С
Hot water capacity at t 30°C:	9.5 l/min
Max. water pressure in the DHW circuit:	10 bar
Max. water pressure in the heating circuit:	3 bar

Comfort

Security

Connection

Delivery of goods is carried out throughout Russia. When delivering in Moscow and the Moscow region, we deliver the order within the terms agreed with the buyer within three days from the date of its confirmation. The day and time of receipt of the goods are discussed with the manager when placing an order.

OK, when gas equipment capable of self-diagnosis. Boiler errors "" indicate where to look for a breakdown. If you want to figure out the causes of the malfunction yourself, then study the meaning of the symbols on the display. And we will show you how to fix the situation without calling the wizard.

Features of diagnostics

Vaillant gas boiler error codes can appear not only in the event of a breakdown. Some icons are displayed during the operation of the equipment, during the switching of modes. Symbols will help to understand the frequency of occurrence. For example, if the code starts with the letter "F" - this means an error (malfunction). If with the letter "S" - this is the state of the device.

If you see the symbols on the display for the first time, reset the boiler. Perhaps this is a system failure. If the code appears again, you need to understand the problem and fix the problem.

Error codes

Fault designation	What does	Do-it-yourself elimination
F0/F71	The circuit of the supply coolant temperature sensor has broken.	Check: sensor performance; wiring condition; plug connection.
F1	Breakage of the temperature sensor on the return line.
F2	Fill temperature sensor open.	Insert the plug tighter. Make sure the wiring is not damaged.
F3	Drive thermal sensor circuit is open.
F5 (only for wall-mounted "Vailant Atmo")	Communication with the external smoke detector has been interrupted.	What to do: Pull contacts. Replace faulty wiring. Install the correct item.
F6	The internal retract sensor wires are broken.
F10	Short circuit (short circuit) of the thermistor when applied.	Check: Plug. Tighten contacts, replace broken parts. Cable. Thermistor.
F11	Short circuit of the thermistor on the return.
F13	Short circuit of the hot start sensor.	Shorted cable. Install new wiring. Defects in the temperature control element. Replace items. Loose or shorted plug. Check the detail.
F15, 16	Short circuit of the external sensor for the removal of combustion products.
F20	Blocking of work by protection against an overheat.	The thermistor is defective, so the system does not respond to overheating. Install a work item.
F22	The work of the equipment was stopped due to lack of water.	Check: Pressure meter. Circulation pump for jamming. Wiring from parts to the control module. Main fee. The defective part must be replaced. The system may not match the pump capacity.
F23	Not enough water in the boiler.	Check that the flow and return sensors are properly connected. Clean the pump, it may be blocked by a foreign object. Or its performance is not enough to service the system.
F24	Low coolant level. At the same time, the temperature rises sharply.	The pressure drops. Remove excess air. See solutions for F23.
F26	Problems with the operation of gas fittings.	Incorrect connection of the servomotor. Tighten the plug, replace damaged wires.
F27	Flame detection when fuel valve is closed.	Carry out diagnostics of the protection system, magnetic valve.
F28	The dual circuit device does not turn on. The burner does not start.	Diagnose and repair: pressure switch; gas meter; gas fittings; main module. Release excess air. Adjust fuel settings.
F29	The flame goes out.	Interruptions in gas supply. Wait until the supply is restored, or contact the gas service. Check the grounding of the device.
F32/F37 (for condensing turbo models)	The fan speed is not correct.	Tighten the loose plugs, put a working fan.
F33 (for turboTEC)	The pressure measuring switch does not turn on.	Problems with pressure switch contacts. Make contact calls and repairs.
F36	Protection worked, weak traction. Combustion products enter the room.	Shut off the gas supply, turn off the boiler. Open the ventilation, clean the chimney shaft from blockage.
F38	Fan failure.	Repair or replace.
F42	Open coding resistor.	Measure the resistance of the resistor. Check the cable for a short.
F49	Low voltage on eBUS.	The bus is shorted or the channel is overloaded.
F53	Incorrect combustion control.	Adjust dynamic pressure. Carry out diagnostics of the Venturi nozzle, gas fittings.
F54	Fuel supply problems.	How to fix the situation: Open the gas valve. Pressurize the system. Inspect the shut-off valve and check its serviceability.
F56	Component malfunctions in the combustion unit.	The contact with the fuel valve is broken, connect the plug. If the symbols reappear, check the valve.
F57	Comfort mode is on, incorrect adjustment.	Ignition electrode corrosion. Clean the parts or install a new element.
F61	An error has occurred in the control of the gas valves.	Cable short circuit, circuit break. Fuel valve failure. Carry out repairs. Replace components.
F62	The armature switches off with a delay.	The control electrode does not work.
F63	EEPROM failure.	Electronics failure. It is better to contact the service center.
F64/F67	Problems with electronics, sensors.	Diagnose wiring, contacts, sensors.
F65	Hot electronics compartment.	Malfunction of parts, external heating of the block.
F70	Invalid boiler number.	After installing the new display and electronics, you did not enter the boiler code.
F72	The temperature sensors in the supply or return line are out of order.	Broke, shorted wire. Install the correct item.
F73	The pressure sensor gives a low signal.	Broke, shorted wire. Install the correct item.
F74	The pressure sensor is high.	Wire shorted to 5-24V. Change connection.
F75	When the pump is turned on, the pressure does not rise.	Bleed air from the system, adjust the settings of the bypass, expansion tank.
F76	Blocking from an overheat of a primary radiator.	Heat exchanger not working, fuse cable defective.
F77	Malfunction of the diverting valve, condensate pump.	Run diagnostics on parts.
F80 combined with F91	Short circuit of the sensor of the secondary radiator.	Tighten the contacts, repair faults.
F81 in combination with F91	Loading pump problem.	Bleed air from the pump. Inspect the sensor, cable, impeller. Make sure the heat exchanger is not clogged, clean it.
F83	Incorrect thermistor measurement on the supply and return lines.	Add coolant. Correct the location of the thermistor.
F84/F85	Invalid thermistor data.	Swap the details. Incorrect mounting
F92	Coding resistor error.	Measure resistance, set gas group.
F93	The quality of combustion is not up to standard.	Replace the nozzle with a suitable one. Clean the venturi nozzle.
Con	There is no communication with the control unit.	Contacting a service center.
fxx	Software problem.	Contacting a service center.
5ER	Time for maintenance.

Intermediate codes may appear on the screen of the Vailant boiler. So, the symbols from S0 to S8 indicate the switched on heating mode. DHW heating in progress - S10 to S17. Hot start - S20–S28.

Some notations are better considered separately:

S30 - outdoor thermostat blocks heating.
S31 - heating blocking. Summer mode is on.
S33 - the "Antifreeze" function is enabled. Blocking for 20 minutes.
S36 - the regulator is set to 20 degrees. Heating mode does not work.
S41 - nominal pressure exceeded (2.8–4.5 bar).
S42 - the burner does not turn on. Causes: the outlet valve has tripped, the condensate pump has broken.
S51 - Combustion products entered the room.
S53 - waiting 2.5 minutes. Little water.
S54 - waiting 20 minutes.
S96, 97, 98 - test mode.

By studying the meanings of the codes, you can correct the errors. Spend Maintenance boiler once a year, then there will be no problems with operation.

2017-03-22 Evgeny Fomenko

Features of operation and diagnostics

During the connection, operation and maintenance of the Vaillant gas heating boiler, some malfunctions may occur. Models that have an electrical control system with a screen make it possible to understand what specifically does not work in a given situation.

To understand what to do in certain cases, consider the common error codes for the Vaillant gas boiler, and what needs to be done if they occur. If several errors occur at the same time, they are displayed alternately for approximately 2 seconds.

Icon designations can begin with the letter F (error) or S (status). Specifications and codes that are inherent in each particular model are prescribed in the instruction manual.

The most common error codes for Vailant boilers

F5

Error F5 means a break in the external exhaust gas sensor. Possible reasons there may be an incorrect operation of the flue gas sensor, the plug is removed or the cable is damaged, the spare resistor is incorrectly installed. The code is relevant only for the mounted model Vailant Atmo.

5ER

If the display alternates between the water temperature and the 5ER (or SER) error, this is a reminder that it is time to service the device.

The user himself can set the frequency of how often this reminder pops up. The value is set in the item for diagnostics D.084 within the range from 0 to 3000 hours with an interval of 10 hours (the number 300 corresponds to 3000 hours). To completely disable this feature, enter the character “---” instead of a numeric value.

F15

Error F15 indicates a short circuit in the outdoor sensor for exhaust gases. Presumably there was a short circuit with the sensor plug housing, a short circuit inside the wiring harness, or the sensor itself is faulty. Shown only in wall boilers Vaillant Atmo.

F20

Error F20 (F20) detects that a protective shutdown of the device has occurred due to the fact that the safety limiter of the STB temperature indicator has tripped. It is activated when the maximum allowable temperature is exceeded.

This can happen due to the fact that the “ground” contacts of the wiring harness with the housing are incorrect, the NTC of the return or supply line is broken (weak contact). Breakdown through the ignition wire, electrode or ignition plug is also possible.

F21

Error F21 means an emergency shutdown of the GFA flame control.

F22

Error F22 (F22) shows operation protective shutdown due to insufficient water. The reasons for this are a malfunction of the pump cable or toggle switch with insufficient water, the pump does not work or is blocked, or it has too little power.

F23

Error F23 detects an emergency shutdown due to too large a temperature difference between sensors located on the supply and return lines.

Highly low pump power why the pressure drops on one side;
pump blocked;
Return and forward NTC sensors are out of place.

F24

Error F24 signals an emergency shutdown when the temperature rises too sharply. This means the presence of air in the device, reduced pump performance, blockage or very low pressure in the heating system. The gravity valve may be improperly connected or blocked.

F26

Error F26 means that the flow of the gas valve of the stepper motor is not determined due to a breakdown of the gas valve. Perhaps this is not connected or the gas valve servomotor is broken, the connector is incorrectly placed on the board, or there is a break in the wiring harness.

F28

Error F28 (F28) indicates that the equipment did not turn on, a malfunction was detected when the device was started, ignition attempts were unsuccessful.

There are a number of options:

Boiler ignition electrode

electronics failure, for example interruption of the ionization current.

F29

Error F 29 (F29) indicates that the burner flame goes out during operation and further ignition attempts are unsuccessful. There may be a temporary fuel cut, a misfire in the ignition transformer, or improper grounding of the equipment.

F33

Error F33 (F33) reflects that the device for measuring the pressure force does not turn on. After turning off the fan, the pressure switch does not disconnect the contact. Relevant for the Vailant Turbo TEK PRO line.

S33

Error S33 indicates that the unit is locked and put into a 20-minute standby state, the heat exchanger frost protection mode has been activated. The reason is that the relay contacts of the air-gas path are not connected. This condition may appear in the Vailant 242 Turbo double-circuit boiler.

Gas boiler Vaillant turboTEC PRO 242

F36

Error F36 (F36) - the thrust tipping sensor has recognized the exit of combustion products. Indicates that the traction is too weak. Most likely, the chimney is clogged or the ventilation is closed. The elimination of this problem consists in cleaning the chimney, turning off the active hood above the stove and opening the window.

F37

Error F 37 (F37) means fan speed deviation (too fast or slow). The pressure sensor may be broken.

F38

Error F38 means that the fan is out of order and needs to be replaced.

F53

Error F53 shows incorrect combustion settings.

Possible reasons:

F61

Error F61 indicates an error in the control of gas valves. It is possible that the cable harness inlet is damaged and a short circuit has occurred, the gas valve or the electronic board is faulty.

F62

Error F62 - gas valve shutdown time delay. It can work if there is extraneous light inside (the control electrode does not show flame decay).

F71

Error F71 shows failure temperature sensor in the supply line. It is probably defective or located at a great distance from the supply line.

F72

Error F72 appears when the return or flow temperature sensor fails. It may be faulty or a very large temperature difference in the forward or return line of the NTC sensors.

F75

Error F75 (F75) means that there is no pressure surge when the pump is turned on. There may be oxygen in the heating system or the pump or water sensor may not work correctly. In order to correct the situation as soon as possible, the adjustable bypass is checked, an expansion tank is connected to the return line.

Gas boiler pump

SER

The SER error is the same as the 5ER code (the letter “S” and the number “5” are the same on the electronic display). After the problem has been resolved, the errors are reset after pressing the “Reset” button or turning the boiler on and off from the network.

Delivery terms

The driver of the delivery service can provide the services of a loader only by prior arrangement for an additional fee.

Upon delivery to the Buyer, the seller is responsible for the appearance of the goods until the moment of its acceptance and transfer to the Buyer. Claims for the appearance and configuration of the delivered goods, in accordance with Art. 458 and 459 of the Civil Code of the Russian Federation, it is possible to present only before the transfer of the goods by the Seller to the Buyer. From the moment of acceptance and transfer of the goods, the seller's obligation to transfer the goods is considered fulfilled. The fact of acceptance of the goods by the Buyer is confirmed by the signature in the "Purchase and Sale Agreement" in the column "Acceptance and Transfer Certificate". If the appearance or packaging of the goods do not correspond to the proper quality, the buyer has the right not to accept the goods and not to sign the documents.

Payment

Currently, the Ecolife online store offers the following payment methods for orders:

Cash on delivery
Upon delivery of the order, as well as upon self-receipt of the goods at the pickup point, you can pay for the order in cash at the time of its receipt.
Payment by bank transfer
Payment by details to the company's account upon completion of the receipt in the bank or through the Internet bank. After placing an order, you will receive an invoice for payment and a receipt with our details. The prices indicated on the invoice are final and include VAT. The issued invoice is valid for 5 calendar days. This payment method can be used through any bank operating in Russia.
Note:
Banks charge a fee for money transfers. Check with the bank where you plan to pay the receipt for information on the amount of the commission fee. When choosing this payment method, please wait until you receive an invoice.