Plug’s lead harness for damage and continuity, if ok –> replace control box, If the values of the continuity test and functional test are ok –> check the glow.0.6 Ω ± 0.04 Ω (heat resistance)Ģ4 volt heater – approx. Check glow plug is working and for continuity.ġ2 volt heater – approx.If the heater is switched on again, the fault code 015 is displayed. The hardware threshold value for the overheating sensor has been exceeded,īecause the control box failed to recognise the fault code 012 or 013 –> the The hardware threshold value for the overheating sensor has been exceeded –> The fault code 015 is displayed, if the heater was switched back on after the fault Check flame sensor, if ok –> check overheating sensor, if overheating sensorĭefective –> replace combination sensor, if overheating sensor ok –> measure fuel quantity, if fuel quantity ok –> replace control box.System, if necessary re-lay – for component ratings, please refer to additional Sum of the component ratings of air-conducting parts is too large –> Check air.Temperature difference between flame sensor and overheating sensor too large Check flame sensor, if ok –> check overheating sensor, if overheating sensor defective –> replace combination sensor, if overheating sensor ok –> measure.Check overheating sensor If ok –> measure fuel quantity.įlame sensor signals temperature at heat exchanger is too high. Sum of the component ratings of air-conducting parts is too large –> Check air system, if necessary re-lay – for component ratings, please refer to additional parts catalogue.Check hot air pipes for blockage –> remove blockage.Temperature of the overheating sensor too high. In case of a voltage drop, check the fuses, the supply cables, the negative connections and the positive support point on the battery for corrosion and correct contact. The measured value and the voltage at the battery should be the same. Disconnect connector S1 / B1 at the heater, the vehicle’s engine is switched off, measure the voltage at connector B1 between PIN 1 (cable 2.52 rt) and PIN 10 (cable 2.52 br).Undervoltage applied to control box for at least 20 seconds without interruption Disconnect connector S1 / B1 at the heater, start the vehicle’s engine, measure the voltage at connector B1 between PIN 1 (cable 2.52 rt) and PIN 10 (cable 2.52 br).ĪIRTRONIC L 12 volt – voltage >16 volt -> check generator regulator.ĪIRTRONIC L 24 volt – voltage >32 volt -> check generator regulator.Overvoltage applied to control box for at least 20 seconds without interruption – If you still can't find what you are looking for, try sending our helpful customer support team an email.ĭisconnect connector S1 / B1 at the heater and at the connector B1, PIN 16Ĭheck the cable up to the fresh air fan relay for short circuit to negative, if ok –> replace control box.ĭisconnect connector S1 / B1 at the heater and at the connector B1, PIN 15Ĭheck the cable up to the relay isolating switch or the car alarm input for short circuit to negative, if ok –> replace control box,ĪDR shutdown due to signal change from (+) to (–) at connector S1, PIN 13 (D+) or plus signal at connector S1, PIN 14 (HA+). Using this table you can diagnose errors for all Eberspacher vehicle and marine heaters. Find out what the error codes and fault codes on your Eberspacher Heater with our useful guide.
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