Technical data

56
STRATA1
Fan 2 low Upper burner fan speed too low 9,10,11,14,18,29,31,33
during pre-purge
Fan 2 oper Upper burner fan is detected as 4,11,29,31
operating when should be idle
Flame 2 on/w Flame is detected at the upper 17,30
burner when there should be no
flame
Ignit 2 fault Ignition to upper burner has not 12,13,15,16,17,20,22
been successful after 4 attempts 23,27,29,30,31,35
Flame 2 out Flame at upper burner has been 13,15,17,20,23
lost on 4 consecutive occasions
during operation
Gas valve Connection to gas valve interrupted 26,28,29,31,33
Soft fault Error in software in the control 29
Reset button There is a fault with the reset 29,31,34
button
Eeprom There is a fault in the EEPROM 29
in the control
22.1 Screen display/Diagnosis of faults (contd)
22.2 (possible) causes of fault
& corrective action
CAUSE REASON/ACTION
No.
1 - Dip switches not set correctly / Check and correct settings
2 - Unsound electrical connections to flue limit stat / Check and correct
3 - Sensor not correctly connected or sensor defective/Check connections and or
replace sensor
4 - Short circuit in wiring / Check and rectify
5 - Short circuit in wiring to sensor / Check and rectify
6 - Boiler pumps not rotating (seized or defective)/Free seized shaft or if defective replace
pump
7 - System lacks water / Investigate, refill and vent
8 - Connections to heat exchanger limit stat unsound /check & rectify
9 - Unsound electrical connection to fan / Check integrity of fan connection plug
10 - Fan blades heavily contaminated / Clean fan