I have an old Ford Rimor of 2004 with al-310 system working just fine. On the display i can see the temperature marked "--". I asume the sensors aren't installed, can i still order these temperaturesensors?

Thank you, i will buy a new one. Can you tell me what beep means or is this random? I mean why first 1 time, then 3 times, does the amount of beebs matter?

When heating my camper after about half an hour i can hear a beep comming from the al-310x. It happens when the heater ventilator is running at high speed and is drawing approximatly 7,5 Amp. The heater is running correctly, no problems there. After a while the al-310x beeps again but 3 times, then ...