Technical data

58
Gas valve Connection to gas valve interrupted 16,26,28,29,31,33
Soft fault Error in software in the control 29
Reset button There is a fault with the reset button 29,31,34
Eeprom There is a fault in the EEPROM in the control 29
CAUSE No. REASON/ACTION
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
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 mm output setting is incorrect / Check and adjust mm output C02%
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
21.1 Screen display/
Diagnosis of faults (contd)
& corrective action
21.2 (possible) causes of fault