Timberline Binar-5B-Compact - Replacement of Temperature Sensors

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5.6 Purpose, Dismounting, and Replacement of Temperature Sensors
The overheating and temperature
sensors (Fig. 8 and 9) monitor the
temperatures of the heat exchanger.
If the temperature exceeds 110°С,
the control unit shuts the pre-heater
down with malfunction code 01; if
the coolant circulation is insufcient,
overheating may be caused by a large
temperature gradient between the
inlet and outlet (malfunction code
02) or by rapid heating of the sen-
sors (malfunction code 11). If failures
are caused by the sensors and not
by quality of coolant or the pump,
replace both sensors.
To dismount and replace the sensors:
• Remove the control unit (see 5.5).
• Cut the wires between the tem-
perature sensors and the control
unit. Make sure to remember
the position of the wires
marked black.
• Strip the wire ends and solder
new sensors to them. Cover the
connection spots with a heat-
shrink tube or a duct tape.
Reinstall the control unit in the
reverse order.
Fig. 9. Temperature sensors.
Fig. 8. Control unit
Temperature Sensors