Heater Lockout Reset Procedure - Webasto Thermo Top Evo Installation Instructions Manual

14 | Basic Troubleshooting

14.5 Heater Lockout Reset Procedure

Procedure in the event of a heater
lock-out (inter-lock) condition
The control unit continuously monitors the heater operation. The control unit identifies errors on
individual heater components and faults during operation. Should the control unit experience
component errors and operational faults, the heater may be shut down and without the ability to
restart.
Heater Lock out Reset Procedure:
1. Switch the heater ON
2. Within 10 seconds disconnect power from the heater (unplug the wiring harness, disconnect the
battery, remove the fuse)
3. Wait 10 seconds
4. Switch the heater OFF
5. Reconnect power
6. Switch the heater ON
7. Rectify the cause of the fault.
NOTE: In most cases, a heater lockout can be removed using the procedure as stated above. In
faults where safety is a concern, Webasto Thermo Test software must be used. Contact an
authorized Webasto dealer for assistance.
If you have any questions, contact our technical support team at:
(800) 860-7866 or via email at: info- us@webasto.com.
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