Okofen PE 08 Operating Manual page 162

162
Cause and Remedy:
Display:
Description:
Cause and Remedy:
Display:
Description:
Cause and Remedy:
13.5 Underpressure box (Fault 5012, 5013, 5041, 5042)
Display:
Description:
Cause and Remedy:
PE 567 EN 1.1
Sensor defect
Sensor cable defect
Sensor temperature too
low
Sensor polarity reversed
[5048] PE Burner gas open-circuit (only SMART without combustion cham-
ber sensor)
Burner gas sensor fracture, measuring circuit of Burner gas sensor is open –
Output RGF
Sensor not connected
Sensor cable defect
Sensor defect
Sensor temperature too
high
[5049] PE Burner gas short-circuit (only SMART without combustion cham-
ber sensor)
Burner gas sensor short circuit, measuring circuit of Burner gas sensor short
circuit – Output RGF
Sensor defect
Sensor cable defect
Sensor temperature too
low
Sensor polarity reversed
[5012] PE Underpressure box BS
Negative draft input open, measuring circuit from negative draft measure-
ment open – Input UP
Signal incorrect
Signal cable defect
No signal
Combustion chamber leak
Measure sensor (approx. 5 mV at 125°C) re-
place if required
Replace sensor
Sensor temperature below measuring range
(– 10°C)
Change sensor connection + and –
Connect sensor at input
Replace sensor
Measure sensor (NiCrNi) replace if required
Sensor temperature above measuring range
(1100°C)
Measure sensor (approx.. 5mV at 125°C) re-
place if required
Replace sensor
Sensor temperature below measuring range
(– 10°C)
Change sensor connection + and –
Check poarity and signal (0-10V)
Replace sensor
Replace underpressure box
Check total closure of boiler door
Malfunction report