Glen Dimplex System 30 - Error Codes; Boiler Operation

3.0 BOILER OPERATION
3.1 CENTRAL HEATING
1. With a demand for heating, the pump, circulates water
through the primary circuit.
2. Once the main burner ignites the fan speed controls the gas
rate to maintain the heating temperature measured by the
temperature sensors.
3. When the demand is satisfied the burner is extinguished and
a 5 minute delay occurs before the burner will re-light (anti-
cycling), the pump continues to run for a period of 2 minutes
(Pump Overrun).
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© Dimplex Boilers 2008
3.2 FROST PROTECTION MODE
1. Providing there is mains power supply to the appliance, the frost
protection mode is integral.
If the system temperature falls below 5°C then the boiler will fire on
its minimum setting until a flow temperature of 20°C is reached.
Further protection can be incorporated by using a system frost
thermostat.
3.3 PUMP PROTECTION
1. The pump will automatically operate for 1 minute in every 24 hours
to prevent sticking.
Expansion
Vessel
Primary
Heat Exchanger
Burner &
Burner Flange
Primary Return
CH flow
Thermistor
CH return
Thermistor
Condensate
Trap
Pressure
Gauge
CH
Return
3 BAR
Pressure Relief
Valv e
Pump &
Hydroblock
Automatic
Air
Vent
CH
Flow
Flue Products
Manual
Bleed Valve
Fig. 3
16.0 ERROR CODES
The boiler is in an ERROR state when there is an error code flashing on the back lit display.
CH = C
e
entral Heating
BCC = Boiler Chip Card
Press and release the RESET button, the control tries to i
n
nitiate a restart if possible
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 plate heat exchanger for blockages Y
•Check CH thermistor
•Check system bypass is functional
4 No flame No flame signal on ignition •Check detection electrode/lead – electrode may require cleaning
•Check spark gap
•Check gas supply & pressure Y
•Check flue system is connected properly
•Check condensate trap not blocked
•Check gas valve and/or lead
5 Flame loss Loss of flame signal •Check detection electrode/lead Y
during operation •Check gas valve mains lead
6 Temporarily Water temperature •Check overheat thermostat
overheated appliance greater than 95°C •Check no air is in heat exchanger/CH system
•CH system and hot water plate heat exchanger blockage Auto Re-start after 1 minute
•Check CH thermistor
•Check system bypass is functional
7 Overheated appliance Flue over temperature •Check no air in heat exchanger
> 92°C •Check flue thermistor
•Check flue system Y
•Check pump
•Check PCB/X8 connector
11 Flame simulation Flame detected when •Check detection electrode/lead electrode may require cleaning Y
gas valve closed •Check gas valve operation.
12 No ignition CH Flow thermistor failure •Check CH flow thermistor – open circuit Auto Re-start when fixed
•Check PCB/X6 connector – open circuit
13 No flame Flue thermistor failure •Check PCB/X8 connector
•Check flue thermistor Auto Re-start when fixed
•Check thermal fuse – open circuit
16 No ignition CH Return thermistor failure •Check CH return thermistor – open circuit Auto Re-start when fixed
•Check PCB/X6 connector – open circuit
20 No flame Gas valve V1-V2 failure •Check/replace gas valve
•Check gas valve harness Y
•Check PCB/X2A
24 Faulty fan signal, Missing or defective •Check fan operation
no flame and fan signal from fan. •Check fan connection Y
runs continuously •Check PCB/X3 connector
•Check flue condition
32 No flame Power supply failure •Check mains supply voltage to boiler Auto Re-start when fixed
•Check all PCB connectors
34 CRC Error / No flame Incorrect BCC •Replace correct BCC Auto Re-start when fixed
(BCC’s only fitted to replacement PCB’s)
35 BCC Error / No flame Incorrect/missing BCC •Reseat or replace BCC Auto Re-start when fixed
(BCC’s only fitted to replacement PCB’s)
36 BCC Error / No flame Damaged BCC •Replace BCC Auto Re-start when fixed
(BCC’s only fitted to replacement PCB’s)
37 BCC Error / No flame Different BCC •BCC and PCB software incompatible, replace BCC Auto Re-start when fixed
(BCC’s only fitted to replacement PCB’s)
38 BCC Error / No flame Different BCC •Reset the appliance in accordance with BCC fitting instructions Auto Re-start when fixed
(BCC’s only fitted to replacement PCB’s)
39 BCC Error / No flame BCC installation failed •Refit BCC in accordance with BCC fitting instructions Auto Re-start when fixed
(BCC’s only fitted to replacement PCB’s)
41 Water flow failure/ Low water pressure •Check CH flow circulation
Flame for a short Reversed sensors •Check water pressure(> 0.5 bar)
period only •Check pump/lead Y
•Check expansion vessel
•Check flow and return sensors connected correct way around
42 Water flow failure/ Low water pressure •Check no air in heat exchanger
Flame for a short No flow •Check CH flow circulation
period only Dry run protection •Check water pressure(> 0.5 bar) Y
•Check pump/lead
•Check expansion vessel
50 BCC Error / No flame BCC Activation •Press reset to activate BCC (BCC’s only fitted to replacement PCB’s) Y
(No display) No light indication Defective power supply •Check power supply
•Check PCB/X1B connector Auto Re-start when fixed
•Check PCB fuse
© Dimplex Boilers 2008
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