1.0
USING THE BOILER
© Dimplex Boilers 2008
3
1.1
CONTROL PANEL
1.2
CH - CENTRAL HEATING TEMPERATURE CONTROL
Control knob shown in the OFF position.
Turn the knob clockwise to increase the temperature of the
central heating.
1.4
CH - CENTRAL HEATING TEMPERATURE CONTROL
Adjustable via the CH temperature control knob to give radiator
temperatures of between 30°C and 80°C.
During periods of no central heating requirement, the control
should be set to the STANDBY position but the permanent live
to the boiler should be left on.
1.3
TO LIGHT THE BOILER
1. Switch on the electrical supply.
2. Turn the CH temperature Control knob to the midpoint
between the minimum and maximum setting. The display
changes from ‘O’ to ‘h’.
3. Ensure Programmer and room thermostat (if fitted) are
calling for heat.
4. The display changes to ‘H’. When the boiler has lit a small
dot will also appear in the bottom right corner of the display.
5. If the burner fails to light the fan will stop. Initially this may
be due to air in the gas supply. The boiler will automatically
have five attempts at ignition.
6. After the five attempts it may be necessary to RESET the
boiler by turning the control knob to the RESET/STANDBY
position and back to ‘ON’ within TWO seconds (then repeat
step 2).
Min
Max
Central Heating
Temperature Control
7 segments
LED display
Fig. 2
Fig. 3
Fig. 4
Min
Max
Fig. 5
Digital Display
Burner On Light
4.0
ERROR CODES
6
© Dimplex Boilers 2008
AFTER ENSURING THAT ALL ACTIONS HAVE BEEN CARRIED OUT RESET THE BOILER (REFER TO SECTION 5.4) IF ANY
Y OF
THE BELOW FAULTS OCCUR DURING INSTALLATION PLEASE REFER TO THE ACTIONS, HOWEVER IF ANY OTHER ER
RROR
CODE IS SHOWING PLEASE CONTACT THE INSTALLER OR TECHNICAL HELP LINE
E:: 01926 834834
ERROR CODE
DESCRIPTION
REASON
ACTION
RESET POSSIBLE
1
Overheated
CH Water temperature
•Check no air is in heat exchanger / CH system
appliance
greater than 105°C
•Check external pump operation
Yes
•Check PCB / X1C connector
•Check flow thermistor
•Check wires to sensors not crossed
2
Different check faulty / Sensor temperature
• Check water pressure
Flame for 15 seconds
differential incorrect
• Check external pump / CH system blockage
Auto Restart When Fixed
• Check no air is in heat exchanger / CH system
• Check flow, and return sensors
3
No gas or Lockout flame Low gas pressure.
• Check gas supply
signal / No flame,
Loss of flame signal during
• Check gas service cock
Lockout after 5 ignition operation
• Check gas valve and lead
attempts
• Check detection electrode / lead
Yes
• Check PCB / X2A & X2B connectors
• Check spark generator /spark electrode
• Check mains earth lead continuity
4
Flue gas sensor /
Flue gas temperature greater
• Check flue sensor
No flame
than 95°C
• Check flue system
• Check no air is in heat exchanger / CH system
Yes
• Check external pump
• Check PCB / PCB connectors
ERROR CODE
DESCRIPTION
REASON
ACTION
RESET POSSIBLE
5
Defective sensor or
Defective flow, return or flue • Check wiring to sensors
thermal fuse blown
sensor or heat exchanger
• Check PCB / X6 & X8 connectors
reached maximum safe
• Check flow, return and flue sensors
working temperature
• CHECK THERMAL FUSE IS OPEN CIRCUIT.
IF SO REPLACE HEAT EXCHANGER (SEE 10.8)
6
Defective gas valve /
5 sec flame signal after burner • Check gas valve and lead
Flame continues after
is switched off
• Check PCB
demand ends
7
Defective fan / No flame Missing or Erroneous RPM
• Check fan
signal
• Check mains fan lead & connector
• Check low voltage fan lead & connector
• Check PCB / X3 connector
Auto Restart When Fixed
A
PCB error / No flame
Internal error
• Check PCB
b
Activate BCC / No flame New BCC
• Turn CH control knob to reset twice to activate
C
Safety system failure / Failure of internal self
• Check PCB
No flame
checking system
• Check BCC is initialised
E
BCC error / No flame
Incorrect / missing BCC
• Reset or replace BCC
h
No flame
Faulty connector
• Check PCB / X1A connector
0
Different check faulty / Water flow rate too low
• Check water pressure
Flame for 15 seconds
• Check external pump / CH system blockage
• Check no air is in heat exchanger / CH system
• Check wires to sensors not crossed
• Check flow, and return sensors
P
Error in power supply / Low mains voltage
• Check mains voltage
No flame
• Check PCB connectors
No light indication
Defective power supply
• Check power supply
• Check PCB / X1B connector
• Check PCB fuse
RESET LOCK-OUT CODES
BLOCKING CODES