Vaillant ecoTEC pro 24 Installation And Maintenance Instructions Manual

Also see for ecoTEC pro 24: Instructions for use Instructions for installation and servicing Instructions for installation and servicing Instructions for installation and servicing

Troubleshooting 90020244995_02 ecoTEC pro Installation and maintenance instructions 259 Troubleshooting9.1 Checking service messagesappears if you have set a maintenance interval, for ex-ample, and this has passed or a service message is issued.The product is not in fault mode.▶ Call up the Live Monitor. (→ Page 17)Conditions: S.46 is displayedThe product is in Comfort protection mode. The product con-tinues to run with restricted comfort after it has detected afault.▶ To establish whether or not a component is defective,read the fault memory. (→ Page 25)NoteIf no fault message is present, the product willautomatically switch back to normal operatingmode after a certain time.9.2 Eliminating faults▶ If fault messages are displayed (F.XX), eliminate the faultafter checking the table in the appendix.Check programmes – Overview (→ Page 38)Overview of fault codes (→ Page 36)If several faults occur at the same time, the display showsthe corresponding fault messages for two seconds each inalternation.▶ Press (max. three times) to restart the product.▶ If you are unable to eliminate the fault and the fault re-curs despite reset attempts, contact customer service.9.3 Calling up and clearing the fault memoryThe last 10 fault messages are stored in the fault memory.▶ Call up the installer level. (→ Page 17)▶ Navigate to the fault codes.◁ The number of faults that have occurred is shown inthe display and the faults that are currently called upare displayed with their fault numbers F.xx.▶ Press or to call up individual fault messages.▶ To delete the entire fault list, navigate to diagnostics codeD.094 in the installer level.▶ Set the diagnostics code to 1, and confirm by pressing.9.4 Resetting parameters to factory settings1. Navigate to diagnostics code D.096 in the installer level.2. Set the diagnostics code to 1, and confirm by pressing.9.5 Preparing the repair work1. Decommission the product.2. Disconnect the product from the power mains.3. Remove the front casing. (→ Page 11)4. Close the gas isolator cock.5. Close the service valves in the heating flow and in theheating return.6. Close the service valve in the cold water pipe.7. Drain the product if you want to replace water-bearingcomponents of the product.8. Make sure that water does not drip on live components(e.g. the electronics box).9. Use only new seals.9.5.1 Procuring spare partsThe original components of the product were also certifiedby the manufacturer as part of the declaration of conformity.If you use other, non-certified or unauthorised parts duringmaintenance or repair work, this may void the conformity ofthe product and it will therefore no longer comply with theapplicable standards.We strongly recommend that you use original spare partsfrom the manufacturer as this guarantees fault-free and safeoperation of the product. To receive information about theavailable original spare parts, contact the contact addressprovided on the reverse of these instructions.▶ If you require spare parts for maintenance or repairwork, use only the spare parts that are permitted for theproduct.9.6 Replacing defective components9.6.1 Replacing the burner1. Remove the compact thermal module. (→ Page 28)212. Undo the four screws (1) on the burner.3. Remove the burner.4. Install a new seal (2) on the new burner.5. Install the compact thermal module. (→ Page 29)