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Troubleshooting

Installation and maintenance instructions ecoTEC pro 0020129672_03

13 Troubleshooting

13.1

Contact Vaillant Service Solutions
(0870 6060 777)

If you contact Vaillant Service Solutions (0870 6060
777) or your Vaillant service partner, if possible, please
mention

– the fault code displayed (F.xx),

– the boiler status that is displayed (S.xx) in the "Live

monitor" (

¬ section 13.2.1

13.2

Performing diagnostics

13.2.1 Calling up Live Monitor (status codes)

You can call up the boiler status codes in the display which
provide information on the current operating status of the
boiler.

Press the left-hand

and right-hand selection

buttons

at the same time

S.0 4

13.1 Status code display view

13.2.2 Status codes – Overview

Display Meaning

Heating mode
S.00

Heating, no heat demand

S.01

Heating mode fan start-up

S.02

Heating mode pump flow

S.03

Heating mode, ignition

S.04

Heating mode, burner on

S.05

Heating mode, pump/fan overrun

S.06

Heating mode, fan overrun

S.07

Heating mode, pump overrun

S.08

Heating mode, burner anti-cycling time

13.1 Status codes

13.2.3 Status codes – Overview

Display Meaning

DHW mode (VUW boiler)
S.10

Hot water demand via impeller sensor

S.11

DHW mode, fan start-up

S.13

DHW mode, ignition

S.14

DHW mode, burner on

S.15

DHW mode, pump/fan overrun

S.16

DHW mode, fan overrun

S.17

DHW mode, pump overrun

VUW Comfort mode, warm start
S.20

DHW demand

S.21

DHW mode, fan start-up

S.22

DHW mode, pump running

S.23

DHW mode, ignition

S.24

DHW mode, burner on

S.25

DHW mode, pump/fan overrun

S.26

DHW mode, fan overrun

S.27

DHW mode, pump overrun

S.28

Hot water burner anti-cycling time

Special cases
S.30

Room thermostat (RT) is blocking heating mode

S.31

Summer mode active or no heat requirement from eBUS
controller

S.32

Waiting period because of fan speed deviation

S.34

Frost protection mode active

S.39

"Burner off contact" has triggered (e.g. contact thermo-
stat or condensate pump)

S.40

Comfort safety mode is active: Boiler is running with lim-
ited heating comfort (

¬ section 13.2.4

)

S.41

Water pressure > 2.8 bar

S.42

Flue non-return flap return signal blocks burner opera-
tion (only in connection with VR40 accessory) or con-
densate pump faulty, heat requirement is blocked

S.46

Comfort safety mode, flame loss at minimum load

S.53

Boiler is in waiting period of modulation block/operation
block function due to water shortage (supply-return
spread too large)

S.54

Boiler is in waiting period of operation blocking function
as a result of water shortage (temperature gradient)

S.76

System pressure too low; top up water

S.96

Return temperature sensor test running, heating
demands are blocked

S.97

Water pressure sensor test running, heating demands
are blocked

S.98

Flow/return temperature sensor test running, heating
demands are blocked

13.1 Status codes (continuation)

Содержание ecoTEC pro

Страница 1: ...Installation and maintenance instructions For the competent person GB IE Installation and maintenance instructions ecoTEC pro VUW...

Страница 2: ...2 Connecting the gas pipe 19 6 Hydraulic installation 20 6 1 Preparing for installation 20 6 2 Connecting the hot and cold water 21 6 3 Connecting the heating flow and heating return 21 6 4 Low loss h...

Страница 3: ...52 12 3 5 Cleaning the filter in the cold water inlet 52 12 3 6 Installing the compact thermal module 53 12 3 7 Checking the charge pressure of the expansion vessel 53 12 4 Checking the gas flow press...

Страница 4: ...B 286 5 3 LPG 0010011718 47 044 47 1 1 Appliance types article numbers and Gas Council Number The article number of the boiler can be found on the identi fication plate 1 4 Identification plate The id...

Страница 5: ...which aims to improve the standards of installation and commissioning of domestic heating and hot water sys tems in the UK and to encourage regular servicing to opti mize safety efficiency and perform...

Страница 6: ...at they do not play with the boiler The boiler is intended as a heater for closed hot water cen tral heating installations and for hot water generation The use of the ecoTEC pro in vehicles such as mo...

Страница 7: ...r off Check the flue gas route in the boiler and the flue gas pipes Material damage caused by corrosion To prevent corrosion on the boiler and also on the air flue gas duct note the following Do not u...

Страница 8: ...UP 7 Edition 2 Gas in timber and light steel framed buildings I S 813 Domestic Gas Installations 2nd edition Ireland BS 5482 Part 1 Domestic butane and propane gas burning installations 2 5 2 Install...

Страница 9: ...f BS 1363 Alternatively a 3 Amp fused doublepole switch with a 3 mm contact opening on both poles may be used 2 5 7 Water supply Combination boilers Designers and installers must ensure that all pipe...

Страница 10: ...tity during the operating life of the system exceeds three times the nominal volume of the heating installation or If the limit values shown in the tables are not observed Total heating output Overall...

Страница 11: ...nal elements Key 1 Gas valve 2 Water pressure sensor 3 Heat exchanger 4 Connection for the air flue gas duct 5 Expansion vessel 6 Air intake pipe 7 Compact thermal module 8 Ignition electrode 9 Fan 10...

Страница 12: ...nication vrnetDIALOG comDIALOG Accessories VR 65 Control Centre VR 66 Control Centre VR 61 2 Two Zone Wiring Centre VR 81 2 Remote Control Unit VR 68 2 Solar Module 4 1 Controller accessories Note 392...

Страница 13: ...person is performing lift straddle the load tilt and place carton into position on truck Recommend secure appliance onto truck with suitable straps Ensure safe lifting techniques are used keep back st...

Страница 14: ...d sides of appliance lift upwards onto worktop if practicable Ensure stable balance achieved and lift upwards to position in place on bracket If 2 persons positioning onto bracket obtain firm grip at...

Страница 15: ...m 500 mm in front of the boiler to enable easy access for servicing may be provided by an opening door Clearance at the side is not required but the side panels can also be removed if there is adequat...

Страница 16: ...g bracket 3 Heating flow 22 x 1 5 4 Hot water connection 15 x 1 5 5 Gas connection 15 x 1 5 6 Cold water connection 15 x 1 5 7 Heating return 22 x 1 5 8 Air flue gas duct connection 9 Condensate trap...

Страница 17: ...ket 1 on the wall using the wall plugs and screws 2 provided with the unit Hang the boiler 3 on the hanging bracket from above using the hanging bracket 4 7 Removing fitting the front casing 2 1 4 5 R...

Страница 18: ...ys only remove one side panel never both side panels at the same time 1 3 4 2 4 6 Removing fitting the side panel b Caution Risk of damage to the side panel Unscrewed side panels that are merely sus p...

Страница 19: ...isk of damage caused by incorrect gas installation Excess test pressure or operating pressure can cause damage to the gas valve When the entire gas installation is tested for leaks the maximum pressur...

Страница 20: ...esses in the supply line can cause leaks Make sure there are no stresses in the supply lines when they are installed b Caution Risk of damage caused by heat transfer when soldering Heat that is transf...

Страница 21: ...sures that a sufficiently high minimum quantity of water is always circulating through the boiler No electrical accessories are required in order to use a low loss header 6 5 Connecting the condensate...

Страница 22: ...ion of gas fired boilers of rated input not exceeding 70 kW net Before starting up the boiler the condensate trap 2 must be filled with water as described in the relevant section 6 6 Connecting the di...

Страница 23: ...icle number 303933 A concentric air flue gas ducting with an outer diameter of 100 mm that can be extended depending on the boiler out put range is available You can also get a vertical system For mor...

Страница 24: ...nuisance should be avoided c If the terminal is fitted less than 2 m above a balcony above ground or above a flat roof to which people have access then a suitable terminal guard must be provided and f...

Страница 25: ...or opening on pitched or flat roofs 600 mm S Above a window or opening on pitched or flat roofs 600 mm T Below a window or opening on pitched or flat roofs 2000 mm 7 1 Position of the termination in...

Страница 26: ...ning closing the electronics box Opening the electronics box Remove the front casing from the boiler section 4 7 1 2 3 4 8 1 Opening the back wall of the electronics box Fold the electronics box 1 for...

Страница 27: ...electrical isolation of the boiler and its ancil lary controllers It should be readily accessible and adjacent to the boiler A flexible cord fulfilling BS6500 or compara ble standard conductor diamet...

Страница 28: ...erature control to the boiler then remove the bridge at input 24 V RT X100 or X106 if a bridge exists If you connect a weather compensator or room tempera ture control via eBUS then bridge input 24 V...

Страница 29: ...0 X41 X1 06 2 3 1 1 6 1 Internal pump Ignition electrode Mains connection Appliance earth X1 8 X1 variant dependent 230 V AC room thermostat No function 24 V PWM Eart h Hall signal Diverter valve 1 3...

Страница 30: ...nstaller level can cause damage to the heating installation You should only access installer level if you are an approved competent person Installer level is secured against unauthorised access with a...

Страница 31: ...the test programs for the commissioning section 9 2 By activating various test programs you can trigger special functions on the boilers The following four test programs are available Display Meaning...

Страница 32: ...pump with break tank must be used The heating system will not be filled automatically from the domestic hot water side Alternative methods of filling sealed systems are given in BS 5449 To ensure the...

Страница 33: ...r all thermostatic radiator valves and both service valves on the boiler are open Connect a hose to the drain valve that is located at the lowest position in the heating system Open the drain cocks an...

Страница 34: ...is shown in the display The current values can be found in the technical data section 17 The combustion of this boiler has been checked adjusted and preset at the factory for operation on the gas grou...

Страница 35: ...til the boiler has reached its operating temperature Ensure that all other gas appliances in the property are turned off Measure the gas flow rate at the gas meter Check that the gas flow rate is as s...

Страница 36: ...the sealing screw Turn off gas at the gas isolation valve Put the front casing back on Turn off electrical supply to the boiler You must not start up the boiler If the gas inlet working pressure is w...

Страница 37: ...and allow the water to flow out of the heating system and the boiler quickly and fully Close the drain valve Fill the heating system again with water as described in section 10 5 3 Re fill the system...

Страница 38: ...iler to the heating installation and the needs of the customer i You can enter your settings in the last column after setting the system specific parameters Switch to the installer level section 9 2 a...

Страница 39: ...oom thermostat closed heat requirement Not adjusta ble D 009 Target value from external eBus con troller in C Not adjusta ble D 010 Status of internal pump 1 on 0 off Not adjusta ble D 011 Status of e...

Страница 40: ...100 Hot water 40 Mid position Not adjustable D 036 Hot water flow quantity impeller sensor In l min Not adjustable D 039 Solar feed temperature Actual value in C Not adjustable D 040 Flow temperature...

Страница 41: ...ot adjustable D 078 Limit on cylinder charging temperature in C Not relevant Not adjustable D 080 Operating hours heating In hours h Not adjustable D 081 Operating hours hot water generation In hours...

Страница 42: ...eat demand the pump is switched on every 25 minutes for 5 minutes once the overrun time has elapsed 11 1 3 Setting the maximum flow temperature The maximum flow temperature for the heating is set at t...

Страница 43: ...er appears in the display and this shows that the boiler must be serviced The display on the eBUS controller accessory shows the information Mainte nance MAIN Heat demand Number of persons Burner oper...

Страница 44: ...ndling and function of the ecoTEC pro Explain the importance of regular maintenance by a competent skilled trade company to the operator It is strongly recommended that a maintenance contract be taken...

Страница 45: ...evant ACS standard assessment which covers the use of electronic portable flue gas analysers in accordance with BS 7967 parts 1 to 4 The flue gas analyser is set to the correct fuel setting We recomme...

Страница 46: ...lways perform the following steps prior to inspection or maintenance work Switch off the main switch Disconnect the boiler from the power mains by disconnecting the mains plug or de energising the boi...

Страница 47: ...tegrity of the complete flue gas installation Check the integrity of the combustion circuit seals Check the gas inlet working pressure Check the gas flow rate 2 1 12 2 Removing the covering cap for th...

Страница 48: ...front casing removed Vol 9 0 1 0 10 0 0 5 Set for Wobbe index Ws kWh m3 15 22 5 CO value with full load ppm 250 250 CO CO2 0 0031 0 0026 12 1 Factory gas setting a Danger Risk to life due to poisoning...

Страница 49: ...re in the boiler on the water side observe pressure gauge and check the charge pressure of the expansion vessel Top up if necessary x 10 Remove the compact thermal module x 11 Check the integrity of a...

Страница 50: ...om the top to the bottom Once the water has drained off close the purging valves of the radiators and the drain cock 12 3 Carrying out maintenance work 12 3 1 Removing the compact thermal module a Dan...

Страница 51: ...signs of damage other than small cracks are apparent you must replaced it article number 193 595 12 3 2 Cleaning the heat exchanger b Caution Risk of damage from water spray If you fail to protect the...

Страница 52: ...below the upper edge Re fit the lower part of the condensate trap Flush through all discharge pipe work ensure route and termination are correct and it is unlikely to freeze up in severe weather 12 3...

Страница 53: ...10 fig 12 10 and the ground connection 9 fig 12 10 to the ignition electrode Attach the plug 5 fig 12 10 to the fan motor Attach the plug 8 fig 12 10 to the gas valve 12 11 Secure the gas pipe against...

Страница 54: ...ogen otherwise with air Ensure drain valve on boiler is open during topping up If water escapes from the measuring stub pipes 1 of the expansion vessel you must replace the expansion vessel 12 4 Check...

Страница 55: ...n overrun S 17 DHW mode pump overrun VUW Comfort mode warm start S 20 DHW demand S 21 DHW mode fan start up S 22 DHW mode pump running S 23 DHW mode ignition S 24 DHW mode burner on S 25 DHW mode pump...

Страница 56: ...ult occurs the display no longer shows the current heating flow temperature of the heating installation If multiple faults occur at the same time the display shows the corresponding fault codes for tw...

Страница 57: ...erruption in cable harness gas valve stepper motor defective electronics defective F 27 Safety switch off Flame simulation Moisture on the electronics electronics flame monitor defective gas solenoid...

Страница 58: ...primary heat exchanger or primary heat exchanger defective F 77 Flue non return flap condensate pump fault No response from flue non return flap or condensate pump defective F 78 Interruption to DHW o...

Страница 59: ...g of at least 3 mm e g fuses or power switches i When carrying out any repair to the boiler make sure that you observe the following instructions for your own safety and to avoid material dam age to t...

Страница 60: ...as valve Unscrew the two fixing screws 1 fig 14 3 from the gas valve and remove the fan from the gas valve Replace the defective fan or the defective gas valve Fit the gas valve and the fan in the sam...

Страница 61: ...leaks 14 5 Replacing the heat exchanger b Caution Risk of damage to the heat exchanger You can neither loosen nor tighten the four screws fig 14 7 pos 1 Drain the boiler section 12 2 2 Remove the com...

Страница 62: ...ct opening of at least 3 mm e g fuses or power switches b Caution Risk of material damage caused by incor rect repairs Using an incorrect spare part display can cause damage to the electronics Before...

Страница 63: ...boiler The Vaillant ecoTEC pro boiler consists primarily of materi als that can be recycled The boiler and its accessories must not be disposed of with household waste Make sure that the boiler and an...

Страница 64: ...t DT 35 K l min 9 4 11 5 Water volume at DT 30 K l min 11 0 13 4 Permitted overpressure MPa bar 1 0 10 0 Required connection pressure MPa bar 0 035 0 35 Hot water output temperature range C 35 65 Gene...

Страница 65: ...f the fuel The flue gas is cooled until the water vapour that it contains condenses The condensation heat that this releases can also be used In particular the flue gas losses are greatly reduced The...

Страница 66: ...Appendix 66 Installation and maintenance instructions ecoTEC pro 0020129672_03 19 19 Appendix Installation Commissioning and Service Record...

Страница 67: ...Benchmark Log Book Installation and maintenance instructions ecoTEC pro 0020129672_03 67 20 20 Benchmark Log Book 3OHDVH DIIL WKH ODEHO IURP WKH UHDU FRYHU RI WKH FRQWURO ER RYHU WKLV DUHD...

Страница 68: ...Name Telephone Number Engineer ID Number Comments Signature SERVICE 7 Date Energy Efficiency Checklist completed Yes No Engineer Name Company Name Telephone Number Engineer ID Number Comments Signatur...

Страница 69: ...EC declaration of conformity Installation and maintenance instructions ecoTEC pro 0020129672_03 69 21 21 EC declaration of conformity...

Страница 70: ...charge pipework 21 Controller 27 Flow and return 21 Gas line 19 Multi functional module 28 Connection diagram 29 Connection measurements 16 Customer service 63 D Diagnosis codes 38 39 40 41 DIA system...

Страница 71: ...Pump operating mode 39 42 Pump overrun 42 Purge Heating installation 33 R Removing Burner 59 Compact thermal module 50 Display 62 Fan 60 Front casing 17 Heat exchanger 61 PCB 62 Side panel 18 Repair 5...

Страница 72: ...0020129672_03 GBIE 072012 Subject to change Manufacturer Supplier...

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