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Ford F-250/350 Super Duty Truck
Heater Lockout Reset Procedure
The Blue
Heat
is designed with a lockout safety feature built into the control unit. After 3 consecutive unsuccessful
startup attempts, the heater will lock itself out from any further start attempts. The heater may also enter the
lockout mode after experiencing an overheat condition.
Reset Heater “Lockout” mode by performing the following procedure:
1 Ensure timer or switch is in the “OFF” position. Turn timer or switch to the “On” position. Remove main fuse
F2 (20 Amp), reinsert after 5 seconds.
2 Cycle timer or switch off and then back on once more. Remove fuse F2 once again and reinsert after 5
seconds. Heater should attempt to start after inserting fuse.
ATTENTION
– The engine coolant must be below 86 °F (30 °C) before the Webasto heater will attempt to start.
– Should the heater fail to start or operate correctly, contact your Webasto technical representative at:
1-800-555-4518
