SSANGYONG 2004 Rexton 2.7XDi Workshop Manual page 1422

Trouble
Trouble Description
Code
30 Speed of combustion fan motor out-
side tolerable range
31 Burner motor interruption
32 Overload, short-circuit or ground
contact, burner motor
34 Burner motor output defect
47 Overload, short-circuit or ground
contact, fuel pump
48 Fuel pump interruption
49 Fuel pump output defect
50 Operating block because too many
start attempts in vain (10 start
attempts, also one start repeat for
every start attempt)
51 Time exceeded for cold blowing
FFH/PTC SYSTEM
REXTON SM - 2004.4
Fan wheel or combustion air fan motor blocked (frozen,
contaminated, stiff, cable harness scrapes on shaft end, ...)
• Eliminate blockage
• Measure speed of combustion air fan motor:
- dismantle combustion air fan
- check with 8.2 V + 0.2 V, to do so, unclip the cable 0.75
black from chamber 13 of the 14-pin connector and the
2
cable 0.75 brown from chamber 14. Apply marking (white
paint) to the fan wheel and measure speed with contactless
speed meter.
If the measured speed is outside a range of 8,800 rpm to
10,400 rpm, then replace the combustion fan. If the mea-
sured speed is within a range of 8800 rpm to 10400 rpm,
then replace the controller.
• Check cable harness for this component for damage and
through current
• Check plug-in connection, replace component if necessary
• Fan wheel or combustion air fan motor blocked
(contaminated, stiff)
• Check cable harness of this component for damage, if neces-
sary replace component
• Check whether the lead to this component has a short-circuit
to GND, if not, check component for ground contact, if neces-
sary replace controller
• Check cable harness to the external component for damage
and through current and replace external component if neces-
sary
• Check cable harness to the external component for damage
and through current
• Check plug-in connection, replace external component if
necessary
• Check whether lead to this component has short-circuit to
+Ub, if not, check component for ground contact, replace
controller if necessary
Too many start attempts, the controller is locked
• Delete the fault memory to release the controller
• Check fuel quantity and fuel supply
• During start (no flame formed yet), the flame sensor reports
temperature value too high for too long
• Check exhaust and combustion air
• Check flame sensor
Remedies
CHANGED BY
EFFECTIVE DATE
AFFECTED VIN
10A-17
2