70
Fault code dis-
played
System characteristics
Cause
Measures
E1
Burner in a fault state
Oil pressure incorrect
Check the oil supply. Replace the
motor/pump unit if necessary.
Press reset button
R
.
E2
Burner in a fault state
Oil pressure during start-
up phase too low
Check the oil supply. Check oil
pressure sensor lead and connec-
tion and replace if necessary.
Check plug-in connection at the oil
pump motor PCB
Press reset button
R
.
Replace the oil pump motor PCB if
necessary. Replace control unit if
required.
E4
Burner blocked
24 V power supply fault
Replace control unit.
E5
Burner in a fault state
Flame amplifier fault
Press reset button
R
.
Replace the control unit if the burn-
er will not restart.
E6
Burner in a fault state
Oil preheater does not re-
spond within tolerated
time
Check oil preheater and supply line
and replace if necessary.
Press reset button
R
.
E7
Burner in a fault state
Fault with oil pump motor
PCB supply voltage
Check the oil pump motor PCB
power cable.
Press reset button
R
.
Replace the oil pump motor PCB if
necessary.
E8
Burner in a fault state
Motor/pump unit faulty
Check the plug-in connection at
the oil pump motor PCB and at the
oil pump.
Replace the motor/pump unit if
necessary.
Press reset button
R
.
EA
Burner in a fault state
Oil pump motor fault
Check the oil pump motor connect-
ing cable and replace if necessary.
Press reset button
R
.
Replace the motor/pump unit if
necessary. Replace the oil pump
motor PCB if necessary.
Eb
Burner in a fault state
Oil pressure sensor fault
Check the sensor lead and lead
connection, replace if necessary.
Press reset button
R
.
Replace the motor/pump unit if
necessary.
EC
Burner in a fault state
Oil pump motor PCB com-
munication error
Check the connecting cable be-
tween control unit and oil pump
motor PCB and replace if necessa-
ry.
Press reset button
R
.
Replace the oil pump motor PCB if
necessary. Replace control unit if
required.
Troubleshooting
Fault codes
(cont.)
5686 293 GB
Diagnosis
Содержание J3HA
Страница 10: ...10 2x 1 2 4 3 Fig 2 Installation sequence Mounting the boiler and making connections 5686 293 GB Installation ...
Страница 21: ...21 2 3 2x 1 Fig 14 Installation sequence Fitting the front panel 5686 293 GB Installation ...
Страница 78: ...78 Troubleshooting Maintenance cont 5686 293 GB Diagnosis ...
Страница 90: ...90 0004 0006 0005 0003 0001 0002 Fig 51 Parts lists Miscellaneous assembly 5686 293 GB Components ...
Страница 114: ...114 5686 293 GB ...
Страница 115: ...115 5686 293 GB ...