Vaillant ecoMAX 665 Installation And Maintenance Manual

Also see for ecoMAX 665: Instructions for use Installation and maintenance manual

Vaillant ecoMAX 665 Installation And Maintenance Manual Manual pdf 33 page image

33Installation and maintenance manual ecoMAX 665 / 0020020159_03Troubleshooting 8Code Meaning Display value/adjustable valued.0 Partial-load heating adjustable values in kWd.1 Pump over-run time heating 1 - 60 minutes or “continuous” (factory setting: 5 minutes)d.2 Max. anti-cycle time heating 1 - 60 minutes (factory setting: 20 minutes)d.4 Cylinder temperature actual value actual value in °C; with use of solar energy:actual value of the upper cylinder temperature sensord.5 Flow temperature target value target value in °Cd.6 Cylinder temperature target value target value in °Cd.7 Cylinder temperature target value for VC appliances target value in °Cd.8 Terminal 3-4 0 = room thermostat open (no heating operation)1 = room thermostat closed (heating operation)d.9 Terminal 7-8-9 target value in °C (continuous controller)d.10 Internal pump 1 = on; 0 = offd.11 External pump 1 = on; 0 = offd.12 Storage charging pump 1 = on; 0 = offd.13 Circulation pump 1 = on; 0 = offd.14 Pump speed target value target value internal pump in %. possible settings:factorysetting auto, 53, 60, 70, 85, 100 %)d.15 Pump speed actual value actual value internal pump in %d.16 2. Pump 3 = storage charging pump (only this function can be used)for other functions, use module 1 of 5 (item no. 306 253) ormodule 2 of 6 (item no. 306 247)d.17 Control type 0 = supply temperature control;1 = return temperature controld.22 Hot water request 1 = on; 0 = offd.23 Operating mode summer/winter mode: 1 = on; 0 = offd.25 Hot water enabling via warm restart clock 1 = yes; 0 = nod.33 Fan target value target value in r.p.m./10d.34 Fan actual value actual value in r.p.m./10d.40 Flow temperature actual value actual value in °Cd.41 Return temperature actual value actual value in °Cd.44 Ionisation current actual value actual value/100 in Ad.46 External temperature correction value correction value in K8.1.2 Diagnosis codesIn the diagnosis mode, you can change certain parame-ters or display more information (see following table).• Press the “i” and “+” keys under the display simulta-neously.The display shows “d.0”.• Scroll to the desired diagnosis number with the “+” or“-” buttons.• Press the “i” key.The display shows the relevant diagnosis information.• If necessary, use the “+” or “–” keys to change thevalue (display flashes).• Save the new value by holding down the “i” key forapprox. 5 seconds until the display no longer flashes.You can end the diagnosis mode as follows:• Press the “i” and “+” keys simultaneouslyor• do not press any key for about 4 minutes. The currentheating flow temperature appears in the display again.