YILKAR YH COMFORT, Operating Instructions Manual

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Cause: Cable may be cut or short-circuited.
Device Response: When the device sees the error, it wants to switch to stop mode. If the system is
hot, it will operate cooling mode before stopping.
Troubleshooting:
* Check the flame monitoring sensor cable and sockets.
* Disconnect the flame monitoring sensor socket, and reset the device from the button. If the fault code
E08 (Flame Monitoring Sensor Open Circuit) is displayed, the flame monitoring sensor is faulty.
Replace the flame monitoring sensor.
* Or remove the flame monitoring sensor and check by applying resistance test.
If the internal resistance is too low, there is a short circuit. Replace the flame monitoring sensor.
* If the resistance test is OK, replace the YHC.
* Reset the device from the button or disconnect the power supply and then connect again.
E 11 : Flame Monitoring Sensor High Current
Cause: Cable may be cut or short-circuited.
Device Response: When the device sees the error, it wants to switch to stop mode. If the system is
hot, it will operate cooling mode before stopping.
Troubleshooting:
* Check overheating sensor cable and sockets.
* Disconnect the overheating sensor connector, and reset the device from the button. If the fault code
E09 (Overheating Sensor Open Circuit) is displayed, the overheating sensor is faulty. Replace the
overheating sensor.
* Or remove the overheating sensor and check it by performing a resistance test.
There is a short circuit if the ohmic resistance is too low. Replace the overheating sensor.
* If the resistance test is OK, replace the YHC.
* Reset the device from the button or disconnect the power supply and then connect again.
E 12 : Overheat Sensor High Current
Cause: The voltage increases to 30 volts for 24-volt devices and 15 volts for 12-volt devices and if the
supply is present for more than 20 seconds, the device detects high voltage failure.
Device Response: If the device detects this fault in stop mode, it will not allow the system to operate if
the voltage drops and becomes operational, the error goes away automatically and the system can be
started. If such an error occurs while the device is running, the device will send itself to the stop mode
by cooling and the error will remain on the screen.
Troubleshooting:
* Check that the supply voltage from the vehicle to the system is within the appropriate range.
YH 24v - Supply voltage < 30v.
YH 12v - Supply voltage < 15v.
* If the supply voltage is appropriate, reset the device from the button or disconnect the power supply
and then connect again.
E 13 : High Voltage Failure
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