Webasto DBW 2010 Service And Repair Manual

Webasto Product N.A., Inc. 34 www.techwebasto.com
FUNCTIONAL ADJUSTMENTS DBW 2010/2020/300 COOLANT HEATERS
6.2.6 FUEL SOLENOID VALVE CHECK
NOTE: A leaking solenoid valve seat or valve
results in a rather long smoke emission period
during run-down. In this case fuel keeps
dripping through the fuel nozzle.
Short smoke emissions are normal caused by
clearing the area between the solenoid valve
and the nozzle bore.
C
HECK
– Exchange control unit with tester P/N 1302691A and
swing burner head open (see Sec. 8.5.1).
– Press fuel solenoid button on tester several times.
You should hear an audible clicking sound indicating
that the fuel solenoid valve is functioning. If no
clicking can be heard, valve and or solenoid may
require replacement (see Sec. 9.2.6).
6.2.7 NOZZLE BLOCK PRE-HEATER CHECK
At a temperature of <0° C (<32° F) the heater cartridge
in the nozzle block is activated. The heating period
depends on the heat reflected within the combustion
chamber.
Preheating is deactivated when the thermostat ambient
temperature is +8° C (46° F).
Power consumption is 130 ±13 Watts.
C
HECK
– Swing burner head open (see Sec. 8.5.1)
– Disconnect electrical connector
– Connect ohmmeter to connector
– Using cooling spray to cool down thermostat
– Resistance (max. 4.5
Ω).

Webasto DBW 2010 Specifications

General

Brand	Webasto
Model	DBW 2010
Category	Water Heater
Language	English