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The heater can be switched on and off using the following Webasto controls:
Before switching on the heater, the vehicle heater must be set to “hot", and the vehicle heater fan must be
set to the slowest speed (reduced current consumption)!
Toggle Switch
Switch On:
Upon switching on the Webasto heater:
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the operation indicator lamp comes on;
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The heater motor and the coolant circulating pump begin to run;
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After about 10-25 seconds, the fuel pump begins to cycle and the fuel-air mixture in the combustion
chamber is ignited;
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Flame is detected;
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At this time the heater is working and produces heat
Switch Off:
Switching off the heater stops combustion. The operating indicator light remains on and run-down
commences. The combustion air fan and circulation pump are deactivated after approximately 150 seconds.
The operating indicator light goes out to indicate the heater is now fully off.
Reactivation of the heater during run-down is permitted. The burner immediately resumes operation after the
run-up time.
Operation Instructions
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2
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Heater Control Harness Connection
Using a 24 Volt Switch
1. White (Ground)
2. Red (Power)
3. Black (On signal)
4. Green (Operation indication)
