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Troubleshooting
Always remove the plug before working on the machine!
Multi-function thermostat
The thermostat has several functions.
Display
Possible cause
"Err OFF"
Temperature of over
170° at the sensor
"Err 2"
Sensor broken
"OIL"
Fuel tank empty
"FLA"
Combustion defect
"E 1"
Memory error. Target
value can be set but
not saved
"E 4"
Memory loss
"E 5"
"888" not
Defective display unit
displayed
when
machine is
switched
on
18
Troubleshooting
The burner does not switch off properly. Check thermostat,
thermocouple and klixon and renew if necessary
Check that the sensor plug (2-pole plug on back of
thermostat) is properly engaged and contacted.Follow the
sensor cable to the end.
Refill EL heating oil
1) check fuel filter, clean if necessary
2) check ignition electrode and burner setting and adjust or
replace if necessary
3) check fuel pump and magnetic valve
4) Check the ignition transformer
Replace thermostat at the next opportunity and send in for
repair. Target value must be reset each time the machine is
switched on.
Replace thermostat and send in for repair
Replace thermostat and send in for repair
IMPORTANT!!!
Action
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