TROUBLESHOOTING
SETTING THE MULTI-TIMER
EN
31
10
Troubleshooting
The control unit monitors the electrical circuit for electronic faults. In the
case of a short circuit, the internal fuse switches the control unit off. After
the fuse cools, the control unit is switched on again.
Temperatures over 60°C can also cause the control unit to switch off. In
this case it is necessary to find a cooler location for the control unit.
LED error code
Cause of error
Flashes 1x per second
Normal status
Off
Check operating voltage
Flashes 1x per 12
seconds
Compressor fault:
If DIP switch number 4 is set to the "On"
position:
- Short circuit to ground
- Excess temperature of electronics reached
- Open circuit to the compressor
Flashes 2x per 12
seconds
Valve fault:
If DIP switch number 4 is set to the "On"
position:
- Short circuit to ground
- Excess temperature of electronics reached
If DIP switch number 4 is set to the "Off"
position:
- Open circuit to the valve
