Sime GO 18 BF G20, User, Installation And Servicing Instructions

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80
EN
8.6 Malfunction codes and possible solutions
LIST OF MALFUNCTION/FAULT ALARMS
Type No. Fault Solution
E 01
Fault in the flame
detection circuit
- Check the integrity of the
electrode and check that it
is not grounded
- Check gas availability and
pressure
- Check the integrity of the
gas valve and the card
E 02
Safety thermostat
intervention
- Check the sensor or
thermostat connections
- Deaerate the system
- Check the bleed valve
- Replace the sensor or the
thermostat
- Check that the pump
impeller is not blocked
E 04
Low water pressure in
system
- Restore pressure
- Check for any leaks in the
system
E 05
Air pressure switch
intervention
- Check the air pressure
switch and fan
- Check any blockage of the
silicone pipe between the
fan and the air pressure
switch and check the
correct positioning of the
pipe on pressure switch
point P2
- Check the correct usage
of the segmented air
diaphragm
- Check any blockage of
the flue gas outlet and air
inlet ducts
E 06
Domestic hot water
sensor fault
- Check connections
- Check the sensor is
working
E 07 Delivery sensor fault
- Check connections
- Check the sensor is
working
E 09
No water circulating in
the system
- Check the rotation of the
pump rotor
- Check the electrical
connections
- Replace the pump
E 11 Parasite flame fault
- Check that the electrode
is intact or that it is not
earthed
E 12
Gas valve modulator
disconnected
- Check the electrical
connection
E 28
Maximum number of
consecutive resets
reached
- Wait 1 hour and try
unblocking the board
again
- Contact the Technical
Assistance Centre
E 37
Fault due to low
network voltage
- Check the voltage
- Contact your network
provider
E 40
Incorrect network
frequency detected
- Contact your network
provider
E 41
Flame loss more than
6 consecutive times
- Check the ignition/
detection electrode
- Check the gas supply
(open valve)
- Check mains gas pressure
E 42 Button fault
- Check that buttons are
working
E 43
Open Therm
communication fault
- Check the OT electric
connection
Type No. Fault Solution
E 44
Gas valve timeout fault
without flame
- Check gas valve and board
E 72
The ΔT requested at
start-up has not been
reached
- Check the correct position
of the delivery sensor
E 80
Fault on the gas valve
control logic line/valve
cable damaged
- Check the gas valve,
board, electrode and valve
cable
E 88
Internal error (board
component protection)
- Check the board is
working
- Replace board
888 Over temperature
- Check the delivery probe
- Check flue gas outlet
- Check system pump
E 98
SW error, board
start-up
- Contact the Technical
Assistance Centre
E 99 Generic error
- Contact the Technical
Assistance Centre
- -
Frequent relief valve
intervention
- Check circuit pressure
- Check expansion vessel
- -
Limited production of
domestic hot water
- Check the diverter valve
- Check that plate heat
exchanger is clean
- Check domestic hot water
circuit valve