Fault Finding - IDEAL Evomax 30 Installation & Servicing Manual

73 fAuLt fInDInG CHARt - mAIn mEnu
Overheat Lockout
Fill System to 1 Bar
Vent System
Check Pump Spins Free
Reset Boiler
Ignition Lockout
Check Gas to Boiler
Check Condensate Pipe
Refer to Instructions
Reset Boiler
Too Many Resets
Turn Boiler Power Off
Turn Boiler Power On
False Flame Lockout
Check Flame Sense
Electrode
Check Flame Sense
Electrode Wiring
Low Water Pressure
Fill System to 1 Bar
Vent System
Flame Loss
Check Gas to Boiler
Check Condensate Pipe
Check Flue System
Fan Fault
Check Fan Wiring
Check Fan
Flow Thermistor Fault
Check Flow Thermistor
Wiring
Check Flow Thermistor
(10K @ 25°C,2K at 66°C)
No CH but DHW OK
No DHW but CH OK
Blank Display
CH Continues to run when
Timer is off
Flow Temperature Setpoint
cannot be increased to 80°C
EVOMAX -
Installation & Servicing

fAuLt fInDInG

Go to Frame 74
Overheat Lockout
Go to Frame 75
Ignition Lockout
5 resets within 15 mins
Turn power off and on
Go to Frame 76
False Flame Lockout
Go to Frame 77
Low Water Pressure
Go to Frame 78
Flame Loss
Go to Frame 79
Fan Fault
Go to Frame 80
Flow Thermistor Fault
Go to Frame 87
No CH but DHW OK
Go to Frame 88
No DHW but CH OK
Go to Frame 89
Blank Display
Ensure Night Setback
not enabled.
See Frame 41
Ensure Flow Temp is
not limited within Installer
Mode. See Frame 42
Return Thmr Fault
Check Return
Thermistor Wiring
Check Return Thmr
(10K @ 25°C,2K at 66°C)
Outside Sensor Fault
Check Outside Sensor
Wiring
Check Outside Sensor
(10K @ 25°C,2K at 66°C)
Low Mains Voltage
Less than 160V
Check Local Generator
Contact Electricity
Provider
PCB Fault
Ensure BCC fitted
Replace PCB
Flow/Return Reversed
Check Pump
Check System Pipework
Cylinder Thermistor Fault
Check Cylinder
Thermistor Wiring
Check Cylinder Thmr
(10K @ 25°C,2K at 66°C)
Ext' Interlock Off
External Interlock
Operated
Reset Interlock
BCC Fault
Ensure BCC fitted
correctly
Replace BCC
Flow Temperature Setpoint
cannot be reduced to 80°C
Pump runs during the night
Boiler does not respond to
0-10V Input
DHW Thermistor used and
DHW does not end
Error 20
Go to Frame 81
Return Thermistor Fault
Go to Frame 82
Outside Sensor Fault
Contact
Electricity Provider
Replace Main
PCB
Go to Frame 83
Flow/Return Reversed
Go to Frame 84
CylinderThermistor Fault
Go to Frame 85
Ext' Interlock Off
Go to Frame 86
BCC Fault
Ensure Flow Temp is
not limited within Installer
Mode. Go to Frame 42
Ensure system Frost
Protection Temp Setpoint
is not set too high.
Go to Frame 37
Go to Frame 90
0-10V Interface
Ensure boiler set for
DHW Thermistor
See Frame 43
Go to Frame 76
False Flame Lockout
51