1 - Jula

ENGLISHTROUBLE SHOOTINGDANGER! Never try to repair the solar collector array yourself. Always contact an authorised servicerepresentative in the event of a failure.The following chart lists some of the most common problems and how to rectify them.No. Problem Possible cause Solution1The pump is running but no flow isVent the system and top up theAir in the system.indicated.heat-carrying medium.2The pump will not start despite a The storage tank is already at the The pump starts when thesufficient temperature difference. set maximum temperature. storage tank temperature drops.The solar panel is already at theset maximum temperature.The pump starts when the solarpanel temperature drops.3Faulty temperature sensor or Check and repair/replace theThe auxiliary heating device doesconductor fracture or short circuit sensor connection and/ornot switch on.in the sensor circuit.sensor.4The auxiliary heating device is inoperation after 23:00.5 System pressure drop.6The pump is running even thoughthe specified temperaturedifference for switch-on has notbeen reached, and the auxiliaryheating device has switched on.The function for bacterial controlhas been enabled.Leakage in the solar collectorarray.The frost protection function hasbeen enabled, as shown by the Xsymbol which is flashing.This is completely normal.Inspect all pipes andconnections for leaks and bleedthe system.The pump stops when the solarpanel has reached the specifiedtemperature.The solar collector array displays the SP116 error message (temperature sensor problem) on the controlpanel (refer to chart below).Error message Meaning Possible cause Action Break in the sensor Faulty sensor or wire breakage Check the resistance. Replacecircuit.or short circuit in the sensor the sensor if necessary.Short circuit in the sensorcircuit.circuit.Faulty sensor or wire breakageor short circuit in the sensorcircuit.Check the resistance. Replacethe sensor if necessary.NOTE: If you suspect that a sensor is defective, you can unplug and measure it using an ohmmeter.Check that the measured resistance corresponds with the table below (minor differences are permitted).Resistance Pt1000°C 0 10 20 30 40 50 60 70 80 90 100 110 120 1000 1039 1077 1116 1155 1194 1232 1270 1309 1347 1385 1422 1460Resistance NTC10K B=3950°C 0 10 20 30 40 50 60 70 80 90 100 110 120 33620 20174 12535 8037 5301 3588 2486 1759 1270 933 697 529 40759