Technical data
57
STRATA1
22.2 (possible) Causes of fault (contd)
11 - Fan is defective / Replace fan
12 - There is no gas supply available / Investigate, restore gas supply
13 - Low gas pressure / Investigate and rectify
14 - Fuse defective / Check fuses and replace as necessary
15 - Gas valve min output setting is incorrect / Check and adjust min output CO2%
16 - Oxidation on burner mounting screws. Loosen and retighten screws.
17 - Poor ignition lead connection to electrode or damp connection or lead damaged
and shorting to earth / Check and rectify
18 - Transformer defective / Replace transformer
19 - Condense siphon is blocked or condense waste blocked or frozen / Clear siphon or
waste pipe
20 - Flue gas leakage from connection at rear of heat exchanger / Check, reposition or
replace seal
21 - System strainer blocked ?, isolation valve closed ? Or some other interruption to water
flow / Check and rectify
22 - Unacceptably high resistance in flue or air supply tubes or flue blocked / Check flue
for suitability or clear obstruction
23 - Leakage of flue gas from flue gas tube into air tube vitiating the combustion air / Strip
out flue system and remake joints
24 - Zone pumps not running / Check and rectify
25 - Heat exchangers fouled internally with silt or scale / Clean, descale heat exchangers
and system and re-dose system with water treatment
26 - Heat exchanger high limit stat defective / Replace limit stat
27 - Boiler set for wrong gas type / Convert boiler to burn the gas being supplied
28 - Flue gas limit stat defective / Replace limit stat
29 - Boiler control panel defective / Replace control panel
30 - Incorrect position of ignition electrode / Reset gap 4-5mm
31 - moisture in-on electrical connections or components / Dry carefully using warm air
from a hair dryer
32 - Incorrect electrical connection / Check and rectify
33 - Wiring interrupted (broken wire) / Check and rectify
34 - reset button stuck / Press button in attempt to free sticking contacts. If no success
then replace control panel
35 - Ignition electrode damaged or broken / Replace electrode23. User instructions