Supplied By www.heating spares.co Tel. 0161 620 6677
10 Fault Finding
Instructions for Installation and Servicing turboMAX plus and thermoCOMPACT R1
40
10.7 Fault codes
Fault codes take priority over all other display functions
in the event of a system fault occurring. If multiple
faults occur, the corresponding fault codes are displayed
alternately for about two seconds each.
10.8 Fault memory
The fault memory stores details of the ten most recent
faults.
• Press the “i“ and “-“ buttons simultaneously.
• Use the “+“ button to scroll back through the list of
memorised errors.
To cancel fault error memory display mode, proceed as
follows:
• Press the “i“ button below the display.
or
• Do not touch any key for about four minutes. The
display will now revert back to showing the current
flow temperature.
Display
Indication
Displayed values/adjustment values
F.00
Flow-NTC:
NTC broken; NTC cable broken; Defective connection at NTC
Defective connection at electronics
Flow-NTC cable defective/ broken NTC faulty
F.01
Return NTC:
NTC broken; NTC cable broken; Defective connection at NTC
Defective connection at electronics
Return-NTC cable defective/broken NTC faulty
F.10
Short circuit - flow-NTC (<130°C)
NTC-plug shorted to casing, NTC defective
F.11
Short circuit - return-NTC (<130°C)
NTC-plug shorted to casing, NTC defective
F.20
Over heat cut off activated
Maximun temperature exeeded
F.22
Dry fire protection
No water in appliance, pump cable defective, pump
blocked or defective, pump output too low
F.23
Dry fire protection (difference between flow and
No water in appliance, pump cable defective, pump
return NTC's too large)
blocked or defective, pump output too low
F.24
Dry fire protection (temperature gradient of flow NTC too steep). Air in boiler/system, pump blocked or defective, pump
output too low
F.27
No demand to gas valve
Electronic board defective; Gas valve defective
F.28
Boiler goes to lock out
No gas; Isufficient gas; Incorrect gas valve
adjustment; Electrode defective; Ignition lead defect;
Electronic igniter defective
F.29
Flame extinguished re-ignition unsuccesful
Gas supply absent or insufficient
F.32
Main heat exchanger anti freeze protection mode
Check fan control cables/connections; Defective fan
(837/637 only) due to fan speed deviation too great
control cable;
F.33
Main heat exchanger anti freeze protection mode
Check air pressure switch, fan, fan supply or flue
(837/637 only) due to no switching signal from the air pressure switch
system
F.37
The rotary speed of the fan is too high or too low
Air pressure switch defect; fan defect; electronics
defect
(837/637 only)
F.41
No setting for the type of gas is stored
Set gas type in PCB (see page 30)
(837/637 only)
F.42
Faulty cable loom
Faulty or incorrect loom fitted
F.43
Faulty cable loom
Faulty or incorrect loom fitted
F.60
Electronic fault
Electronics defect
F.61
Electronic fault
Electronics defect
F.62
Flame rectification present 4 secs. after gas valve turns off
Check gas valve, burner tubes and injectors or
electronics defect
F.63
EMC fault
EMC or electronics defect
F.64
Sensor or electronics fault
Check NTC's/connections or electronics defect
F.65
PCB processor temperature too high
Check earth connection or electronics defect
F.66
Display fault
Display defect; fault in the connection to the display;
electronics defect
F.67
Electronic fault
Electronics defect
Table St.2: Fault codes
