Technical data

13
 Troubleshooting4
What to check first in case of faults
• Check
– Fuelinthetank?
– Fuelpipesleaking?(visualcheck)
– Summerdieselinthefuelpipe?
– Combustionairsystemorexhaustsystemdamagedor
blocked?
– Hotairsystemblocked?
– Airpressuresensorinstalled?Ifyes,referto„Whattodo
if…?“chapterofthe„AltitudeKit“installationinstructions.
– Newgenerationcontrolboxinstalled?
 Features:
 >Cableloomofcontrolboxwoundwithcabletie
 >Temperaturesensormountedonthesideofthecontrol
box(visiblewhencoverremoved)
• Electrical components
– Cables,connectionsdamaged?
– Contactscorroded?
– Fusesdefective?
– Incorrectwiring?(shortcircuits,interrupted/broken)
• Measure battery voltage
– Batteryvoltage<10.5volt,theundervoltageprotectionof
the12voltheaterhastriggered.
– Batteryvoltage<21volt,theun
• Measure voltage supply (Cl 30)
 Disconnectthe16-pinconnectorS1/B1andmeasurethe
voltageappliedatconnectorB1betweenchamber1(cable
2.5
2
rt)andchamber10(cable2.5
2
br).
 Ifitdiffersfromthebatteryvoltage,checkthefuses,the
supplycables,thenegativeconnectionandthepositive
supportpointonthebatteryforvoltagedrop(corrosion/
interruption).
• Check switch-on signal
 Disconnectthe16-pinconnectorS1/B1andthenswitch
ontheheateratthecontrolunit.
 CheckwhethervoltageisappliedintheconnectorB1
betweenchamber4(cable0.5
2
ge)andchamber10(cable
2.5
2
br).
 Ifnovoltageismeasured,thencheckthesupplycable(ca-
ble0.5
2
ge),the5Afuse(item2.7.1inthecircuitdiagram)
andthecontrolunit.
• Check control unit
Control device, mini-timer, mini-controller
and modular timer
 Disconnecttheconnectoratthecontrolunit;installajumper
betweenthered0.5
²
rtcableandtheyellow0.5
²
gecable.
 IfavoltageismeasuredinconnectorB1betweencham-
ber4(cable0.5
²
ge)andchamber10(cable2.5
²
br),then
replacethecontrolunit.
EasyStart R+ / EasyStart R / EasyStart T
 Disconnecttheconnectoratthecontrolunit;installajumper
betweentheblack/white0.5
²
bl/wscableandthered0.5
²
rt
cable.
 IfavoltageismeasuredinconnectorB1betweenchamber
8(cable0.5
²
bl/ws)andchamber10(cable2.5
²
br),then
replacethecontrolunit.