12
Heater Lock-out Reset Procedure
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.
Causes:
The heater is shut down (fault lock-out) if:
No or incorrect start
Temperature sensor defective
Overheating sensor interrupt or short circuit
Overheating sensor installed incorrectly
Ceramic glow pin interrupt or short circuit
Fan motor overload or blocked or short circuit or interrupt
Error in the fuel metering pump or circuit
Under voltage or over voltage for longer than 20 seconds.
Control unit defective
Overheating
Effects:
The fuel supply is stopped if the heater overheats.
The heater continues to run in the same way as if it is switched off manually.
After the heater stops the control unit may set in fault lock-out mode.
Heater Lock out Reset Procedure:
1. Switch the heater ON
2. Within 10 seconds disconnect power from the heater (unplug the 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
IMPORTANT: Heater fault codes can be read using PC Diagnostics, however,
the heater lockout reset must be manually performed using the procedure
stated above.
If you have any questions, contact our technical support team at:
(800) 860-7866 or via email at: [email protected].
Product Registration
The heater can be registered by visiting
www.techwebasto.com or by scanning the
code.
A proof of purchase is required for all heaters that
are not registered.
