Certikin COH280 Training

Type
Training

This manual is also suitable for

BOILERS LIMITED
Training notes for the following Certikin pool heaters:
Genie S
Genie C
Genie Dual
MB055 - MB405
COH110 - COH280
December 2011
Page 2
CONTENTS
Genie C Wiring 3
Genie C Schematic 4
Genie S Wiring 5
Genie S Schematic 6
Genie Dual Wiring 7
Genie Dual Schematic 8
Genie C & S Setup & Service Modes 9
Genie Dual Setup & Service Modes 11
Genie C & S Engineering Modes 13
Genie C, S & Dual Fault Guide 15
Genie C, S & Dual Parts Identi cation 18
Genie C, S & Dual Microcom Software 20
MB 055, 105 & 155 Wiring 22
MB 185, 265 & 405 Wiring 24
MB 055, 105 & 155 Troubleshooting 26
MB 185, 265 & 405 Troubleshooting 28
MB All Models Control Panel Lights 30
COH 100 - 275 Mk1 Wiring 31
COH 100 - 275 Mk1 Parts Identi cation 32
COH 110 - 280 Mk2 Wiring 34
COH 110 - 280 Mk2 Electrical Parts Ideni cation 35
COH 110 - 280 Flueing options 37
Oil Nozzle Sizing 38
Networking 39
Useful Multimeter Values 41
Page 3
GENIE C - WIRING
123456
78
9101112
131415
1617181920
21
22
ON /OFF
SWITCH
W ITH THE RMA L FU S E
TR A NS FO RME R
24 V
Y
3 A mps
POOL SENSOR
Pool Th ermosta t
CONDENS ATE PS
FLOW SENSOR
EXCHANGER SE NSOR
2B2C
230 V
Y
60 C
X1.1
X1.3
X1.5
X1.8
X1.10
FA N
Br
B
X12.1
X12.8
X12.16
X12.3
X12.12
Hi Limit
X12.4
X12.14
X12.5 W
X12.11
Y
910 ohm s
X12.13
Bk
B
1%
240v 3 Wire
X12.2
X12.10
X1.7
X1.9
X1.2
Flue
230V / 50Hz
L
N
SL
LIN K: R emove if seperate
switched liv e provided
WATE R P RESSURE SWITCH
Gy
P
P
Gy
Gy
Bk
Or
V
P
R/B
R/B
Gy /Bk
P
V
Or
Gy
V
B
Br
G/ Y
Br
B
Br
B
B
YY
Bk
Br
Br
Bk
R
Gy
R
Bk
W
W
G
G
Gy /Bk
Bk
Bk
W
V
Gy
HE AT DEMAN D
LO C K O U T A LA R M
FA N 23 0v
L
N
N
FA N TA C H O
RE SE T +ve
HI LIMIT
HI LIMIT
FA N P W M
MO D U LA TION +ve
RE SE T -ve
FA N +v e
FA N -v e
MO D U LA TION -ve
Gy /Bk
Br
B
2D
Bk B lack
B Bl ue
Gy Grey
Gy /Bk Grey/B lack
Br Brown
P Pink
V Violet
Y Yellow
R/ B R ed/B l ue
Or Orange
W White
G/ Y Green/Yellow
R Red
Control Stat
CVBC
Page 4
GENIE C - SCHEMATIC
Tf = Overheat stat,
Flue 100C
Th = Overheat stat,
Heat exchanger 150C
Tc = Limit temp control stat
Flow 80C
T = Temperature Sensor
Flow
Tp = Temperature Sensor
Pool
Pw = Pressure Switch
Pool ow
Tf
Th
T
Tc
Pw
Tp
Page 5
GENIE S - WIRING
123456
78
9101112
13
14151617181920
21
22
ON/OFF
SWITCH
W I TH TH E R M A L F U S E
TRANSFORMER
Y
3 A mps
POOL SENSOR
P o ol The rmo st at
CONDENSATE PS
FLOW SENSOR
EXCHANGER SENSOR
2B2C
Y
8 0C Co nt rol Sta t
X1.1
X1.3
X1.5
X1.8
X1.10
FA N
GyB k
B
X12.1
X12.8
X12.16
X12.3
X 1 2. 12
Hi Limit
X12.4
X 1 2. 14
X12.5 Or
X 1 2. 11
Y
910 ohms
X 1 2. 13
Bk
B
1%
X12.2
X 1 2. 10
X1.7
X1.9
X1.2
Flue
230V/50Hz
L
N
SL
LINK: Remove if seperate
sw itched li ve provided
WATER PRESSURE SWITCH
Gy
P
Bk
Or
V
P
R/B
Gy/B k
Gy
V
G/Y
Br
B
B
RR
Br
Bk
R
Gy
R
Bk
W
W
G
G
Br
Bk
Bk
Or
V
P
HEAT DEM AND
LOCKOUT ALARM
FAN 230v
L
N
N
FAN TACHO
RESET +v e
HI L IM I T
HI L IM I T
FAN PWM
MODULATION +ve
RESET -v e
FAN +ve
FAN -ve
R/B
Gy/B k
Y
2D
Bk Black
B Blue
Gy Grey
Gy/B k Grey/Black
Br Brown
P Pink
V Violet
Y Yellow
R/B Red/Blue
Or Orange
W White
G/Y Green/Y ellow
R Red
G Green
P
Gy
P
V
MODULATION -ve
G/Y
PUMP
B
PUMP RELAY
GyB k
B
Br
Br
Br
Hi Limit
Water
Gy
PUMP PRIMER
24 V
Br
Bk
BBr
Y
Br BrB
BBr
Br
Y
Or
Gy
IG N IT I O N
CONTROL
Page 6
GENIE S - SCHEMATIC
Tf
Th
To
Tc
T
Pw
Tp
Tf = Overheat stat,
Flue 100C
Th = Overheat stat,
Heat exchanger 150C
To = Overheat stat
Flow 100C
Tc = Limit temp control stat
Flow 80C
T = Temperature Sensor
Flow
Tp = Temperature Sensor
Pool
Pw = Pressure Switch
Pool ow
Page 7
GENIE DUAL- WIRING
NC
N
L
PL DM D
HT G D M D
HT R P M P
3P VL V
NC
BU RNE R
LKOUT
NC
RE SET
MODULATION
CO M B ' SE NSO R
++--
SE NSOR RTN
B' SEN SOR
PL SE NSOR
PR ESS URE
CO ND' HI
W
Or
R
B
Br
Gr
V
P
Bk Bl a c k
Bl ue
Br o wn
Gr e y
Orang e
Pi nk
Re d
Vi olet
White
KE Y
Y Ye llow
Flow s ens or
Po ol s ens or
Co mb usti on s ens or
Co nde nsa te
Level Switch
NC
Po ol d em and
He ating d ema nd
E
N
Pe rma nen t Li ve
>
>
>
>
>
Fac t or y F it t ed L ink
Rem ove when s e per at e
swit c hed liv e s u pp lied
He ater pu mp
E
N
E
N
3 Po rt Va l v e
Co ntro l St at
X1 .1
X1 .3
X1 .5
X1 .8
X1 .1 0
FAN
Gy Bk
B
X1 2.1
X1 2.8
X1 2.1 6
X1 2.3
X1 2.1 2
Hi L i m i t
X1 2.4
X1 2.1 4
X1 2.5 Or
X1 2.1 1
Y
910 ohms
X1 2.1 3
Bk
B
1%
X1 2.2
X1 2.1 0
X1 .7
X1 .9
X1 .2
Flue
Gy
V
R
G
W
G
Br
Bk
Bk
Or
V
P
HEAT DEMAND
LO CKOUT ALARM
FAN 230v
L
N
N
FAN TACHO
RESET +ve
HI LIMIT
HI LIMIT
FAN PWM
MO DULATI ON +ve
RESET - ve
FAN +ve
FAN - ve
MO DULATI ON -ve
Hi L i m i t
Wat e r
Gy
IG NITION
CONTROL
10 060 9
Pr e s s ure Swi t c h
W
G
R
P
Gy
Bk
Br
B
P
R
B
Gy
Br
Bk
G/ Y BGy
Bk
G
Y
R
Gy / B k
R/ B
P
P
Or V
Gy
VOr
G Green
Br
315 m A
Page 8
GENIE DUAL - SCHEMATIC
Tf = Overheat stat,
Flue 100C
Th = Overheat stat,
Heat exchanger 150C
To = Overheat stat
Flow 100C
Tc = Limit temp control stat
Flow 80C
T = Temperature Sensor
Flow
Tp = Temperature Sensor
Pool
Pw = Pressure Switch
Pool ow
To
Tc
T
Pw
Tp
Tf
Th
Page 9
Lock/Reset
Button
On / Off
Switch
Temperature
Display
Pool Temperature
Control Knob
Fig. 9.0
Pressure
Gauge
GENIE C & S - SETUP & SERVICE MODES
WARNING: BEFORE COMMENCING OR COMPLETING ANY ELECTRICAL WORK ON THE APPLIANCE, IT IS
RECOMMENDED THAT THE BASIC SAFETY CHECKS FOR EARTH CONTINUITY, SHORT CIRCUIT, POLAR-
ITY AND RESISTANCE TO EARTH ARE MADE. ALL WORK CARRIED OUT SHOULD FOLLOW GUIDELINES
LAID DOWN BY THE I.E.E.
Operation
The Heater requires Mains on both the Live (L) and Switched Live (SL) connection to be able to run. It is delivered
with a link between them which can be removed if a separate Heater switched live is going to be used.
To run, the Heater must have a Mains supply, Gas, Pool Pump pressure suf cient to activate the Pressure Switch,
all safety switches closed and a pool temperature below the set point.
If all the above are correct then the Gas Ignition Control starts the Ignition sequence:
1. The Fan and internal Pump runs as a pre-purge of the Heat Exchanger
2. After a few seconds a spark is created at the electrode and the burner is lit.
3. The burner ame is sensed and the spark is removed.
4. The Fan speed is then changed to the required speed according to the modulation curve.
5. If it fails to light the burner the spark will stop and the Fan and internal Pump will run on as a post-purge of
the Heat Exchanger.
6. The ignition sequence will be repeated up to ve times, then the control will lockout and will require
a reset to start again.
Safety Controls & Lockouts
The Pool Thermostat Control indicates the actual and set temperature of the pool and also displays all the lock-
outs. The next pages detail the fault conditions, the indicators, the display and the actions required.
User Setup Mode
Turn off on the Panel Switch. Turn on with the Panel Switch whilst pressing the Lock/Reset Button.
The Control is now in User Setup Mode.
The control can now be altered by rotating the Pool Temperature Control Knob to a certain position and then
pressing the Lock/Reset button, then switching off. (See Fig. 9.0)
Example:
To change from Fahrenheit to Centigrade:
Turn Panel Switch OFF then back ON whilst pressing the Lock/Reset button.
Turn the Pool Temperature Control Knob until the display shows ‘F’.
Press the Lock/Reset button once and the display will show ‘C’.
Switch the Panel Switch OFF then back ON again.
The Control will now display in Centigrade.
Page 10
GENIE C & S - SETUP & SERVICE MODES
Service Mode
This is a special mode used to set the operation of the Control and to investigate fault conditions, it is entered from User
Setup Mode.
Rotate Pool Thermostat knob fully clockwise to show the software version number.
Press the Lock/Reset Button for 3 seconds. The control is now in Service Mode.
It is now possible to change some of the Control’s parameters. To show them, rotate the Pool Thermostat
Potentiometer. To zero or change them, press the Reset/Lock button
To exit, turn the Panel Switch off then back on again.
Test Temperature Display Mode 1 (td1).
Temperatures are displayed to 0.1 degree resolution, not the normal 1 degree.
The display will now show each sensor temperature and cycle around them for each press of the Lock/Reset button.
1. Pool temperature as normally displayed. The green LED will be alight.
2. Pool temperature is dispayed to 0.1 degrees. The green LED will be alight.
3. Heat exchanger ow temperature. The yellow LED will ash rapidly.
4. Heat exchanger combustion temperature. The red LED will ash rapidly.
5. Aproximate pool water ow in l/m for Genie 50 multiply by 0.738 for Genie 35. the red and yellow LEDs
alternate.
Rotating the potentiometer will change the set temperature. Pressing and holding the button whilst one of the tem-
peratures is displayed will ‘lock/unlock’ it on the display for continuous observation.
Service Mode Setting Factory Setting Reset press Display Indicator
1 Pressure Log Number of Operations Resets to zero Yellow LED ON
2 Overheat Log Number of Operations Resets to zero Red LED ON
3 Combustion Gas Log Number of Operations Resets to zero Count, Red LED ashing
4 Gas Lockout Log Number of Operations Resets to zero Count, Red & Yellow LED ON
5 Condensate Blocked Log Number of Operations Resets to zero Count, Front Red PCB LED ON
6 Unused Rear Red PCB LED ON
7 Hours run 0 Press resets to zero 156 =1560 hrs both PCB LEDs on
8 Pool Temperature Offset 0.5 C (0.9 F) Steps of 0.5C (0.9F) -3.0C to 3.0C (-5.4 F to 5.4F)
9 Display td0 td1 td0 / td1
Genie S only
Genie C only
User Setup Mode Setting Factory Setting Alternative Display Indicator
1 Display units ° F = Fahrenheit ° C = Centigrade ° F or ° C
2 Maximum temperature 32 °C (90 °F) 41 °C ( 106 °F) PL or SPA
3 Software Version e.g 018
Page 11
GENIE DUAL - SETUP & SERVICE MODES
Page 12
GENIE DUAL - SETUP & SERVICE MODES
Page 13
GENIE C (up to V10) - FACTORY MODE
Genie Pool Thermostat, Engineering Mode
Background
As detailed in the Installation Instructions, it is possible, with the aid of a special setup plug, to enter into
an Engineering mode on this control.
Engineering Mode
Turn the Heater OFF with the Panel Switch
Remove the Front Top Panel and the Electrical Chassis Cover, remove the knob and Pcb retainer.
Pull off the PCB connector for the Sensors and replace with the Special Connector. (See Fig. 2.0)
Turn the Heater back ON.
Select the Parameter required by pressing the button, alter by rotating the potentiometer, then power off.
Replace the Sensor Connector and power back on
Parameters
NB. The following explanation uses Centigrade, if the control is setup for Fahrenheit the values will be
the equivelant.
1. bt1 or bt3. This sets the controls boilertype. bt1 is non-condensing, bt3 is condensing.
2. td0 and td1. This sets the display type, td0 is the default. td1 allows the temperatures of
the other sensors to be displayed to one decimal place.
Each press of the lock button moves the display to the next one.
a. Pool Temperature as normally displayed.. The Green LED will be alight.
b. Pool Temperature is dispayed to 0.1 degrees. The Green LED will be alight.
c. Heat Exchanger Flow Temperature. The Yellow LED will flash rapidly.
d. Heat Exchanger Combustion Temperature. The Red LED will flash rapidly.
Rotating the potentiometer will change the set temperature. Pressing and holding the
button whilst one of the temperatures is displayed will ‘lock/unlock’ it on the display for
continuous observation.
3. The proportional band. 0.0 to 7.9 degrees, the default is 1.0. This is the number of degrees
below setpoint modulation can start.
4. The DeltaT modulation point. 0 to 50 degrees, the default is 12. This also determines the
modulation charactersistic of the Heater. It is the temperature difference across the heat exchanger
where modulation will start.
Example: Default settings, 1 and 12. Required Pool temperature 30C.
At 28.9 pool temperature, no modulation in any circumstances
At 29.0 pool temperature and 10 degrees across the heat exchanger, no modulation.
At 29.0 poool temperature and 15 degrees across the heat exchanger, modulation.
If the propotional band is set to 0.0, there will be no modulation irrespective of the DeltaT setting.
If the DeltaT setting is 50, the Heater will always be in modulation.
It is recommended that the modulation points are not altered without consultation with the manufacturer.
.
Fig. 2.0
Page 14
GENIE C & S (from V10) - FACTORY MODE
Genie Pool Thermostat, Engineering Mode
Background
As detailed in the Installation Instructions, it is possible, with the aid of a special setup plug, to enter into
an Engineering mode on this control.
Engineering Mode
Turn the Heater OFF with the Panel Switch
Remove the Front Top Panel and the Electrical Chassis Cover, remove the knob and Pcb retainer.
Pull off the PCB connector for the Sensors and replace with the Special Connector. (See Fig. 2.0)
Turn the Heater back ON.
Select the Parameter required by pressing the button, alter by rotating the potentiometer, then power off.
Replace the Sensor Connector and power back on
Parameters
NB. The following explanation uses Centigrade, if the control is setup for Fahrenheit the values will be
the equivelant.
1. bt1 or bt3. This sets the controls boilertype. bt1 is non-condensing, bt3 is condensing.
2. td0 and td1. This sets the display type, td0 is the default. td1 allows the temperatures of
the other sensors to be displayed to one decimal place.
Each press of the lock button moves the display to the next one.
a. Pool Temperature as normally displayed.. The Green LED will be alight.
b. Pool Temperature is dispayed to 0.1 degrees. The Green LED will be alight.
c. Heat Exchanger Flow Temperature. The Yellow LED will flash rapidly.
d. Heat Exchanger Combustion Temperature. The Red LED will flash rapidly.
Rotating the potentiometer will change the set temperature. Pressing and holding the
button whilst one of the temperatures is displayed will ‘lock/unlock’ it on the display for
continuous observation.
3. The proportional band. 0.0 to 7.9 degrees, the default is 1.0. This is the number of degrees
below setpoint modulation can start.
4. The DeltaT modulation point. 0 to 50 degrees, the default is 12. This also determines the
modulation charactersistic of the Heater. It is the temperature difference across the heat exchanger
where modulation will start.
Example: Default settings, 1 and 12. Required Pool temperature 30C.
At 28.9 pool temperature, no modulation in any circumstances
At 29 0 l t t d 10 d th h t h d l ti
.
Fig. 2.0
Page 15
DISPLAY
LOCK / RESET
GREEN
YELLOW
RED
LED1
RED
RED
LED2
Running, raising pool temperature to 28°C
Up to temperature, 28°C
Insuf cient water pressure. Filter?, Blockage?
‘OH2’ Flue gas over temperature. Allow to
cool then investigate in Engineering Mode.
Reset with Button
‘GAS’ Gas Control Lockout. Unable to light burner, reset with Button.
OR Flue or Water Stat tripped, reset on stat OR Fan resistor open
cicuit, investigate cause. OR Valve Coils faulty. See “Gas” section
FRONT PANEL ON PCB EXPLANATION
OFF, no mains supply or failed power supply
Flashing
‘HI’ Condensate level high. Blocked? Clear
obstruction and allow control to auto reset .
‘SEr alternating with pool temperature. Serv-
ice required, working hours has reached
setpoint.
GENIE C, S & DUAL - FAULT FINDING
Page 16
GENIE C, S & DUAL - FAULT FINDING
DISPLAY
LOCK / RESET
GREEN
YELLOW
RED
LED1
RED
RED
LED2
FRONT PANEL ON PCB EXPLANATION
‘P’ alternating with ‘oc’ = Pool sensor open circuit OR No net-
work detected if a Master in a multiple heater installation
‘P’ alternating with ‘cc’ = Pool sensor short circuit
‘F’ alternating with ‘oc’ = Heat Exchanger
Flow sensor open circuit
‘H’ alternating with ‘oc’ = Heat Exchanger
Combustion sensor open circuit
‘H’ alternating with ‘cc’ = Heat Exchanger
Combustion sensor short circuit
‘F’ alternating with ‘cc’ = Heat Exchanger
Flow sensor short circuit
‘Err alternating with ‘4’ = Pool potentiometer open circuit
‘Err alternating with ‘5’ = Pool potentiometer short circuit
For all of the above. Turn off, correct problem and turn back
on again and the display and operation will be normal.
‘Err alternating with ‘6’ = Heating potentiometer short circuit
‘Err alternating with ‘7’ = Heating potentiometer short circuit
Page 17
Fault will not clear
Replace CVBC on
gas valve. Check for
bent pins. Fault will
self clear
Fault clears brie y (for 1 sec) Fault clears Brie y (for 20 sec)
YES
YES
YES
YES
NO
NO
YES
NO
Is wiring and con-
nections between
CVBC and fan OK?
YES
NO
YES
YES
YES
YES
NO Is gas being re-
leased by the gas
valve?
YES
NO Check
wiring /
Replace gas
valve
Suspect CVBC
to be at fault
NO
Replace Gas
valve. Fault will self
clear
Is CVBC seated
on gas valve
correctly?
Is continuity of gas
valve coils OK?
V1 = 2.8kΩ
V2 =1.6kΩ
Are there any
faults in the wir-
ing or connec-
tors?
Rectify fault. Fault
will self clear
Suspect CVBC
to be at fault Replace CVBC
NB - A fault involving the Gas valve circuit will
occur even if there is no heating demand. Reset
appliance when there is no heat demand to iden-
tify a fault of this nature. Once corrected, there is
no need to use the reset button, as the fault will
self clear.
Have either
the Flue gas or
Water ow tem-
peratures been
exceeded?
With main power
off push the red
reset buttons on
the Flue and Flow
limit devices.
YES
NOT CLEARED
Investigate cause
of overheating.
Are overheat
limit devices
working cor-
rectly?
Check limit
devices are not
open circuit.
Replace faulty limit
devices.
NOT CLEARED
NOT CLEARED
Are connec-
tors and wiring
between the
CVBC and limit
devices OK?
Replace faulty wiring
as necessary
Ensure wiring at
the connections
to the CVBC are
in good condition.
Suspect CVBC
to be at fault
Replace CVBC
Fan runs throughout Fan does not run
Does appliance reach
ignition stage (can you
hear the spark)?
Does gas ignition take
place (seen through sight
glass) but only for 10
secs?
Is appliance earth-
ing, the condition and
connection of electrode
and lead OK?
Replace faulty parts
Replace CVBC
Replace fan
NB - A fault involving the high limit circuit will occur even if
there is no heating demand. Reset appliance when there is no
heat demand to identify a fault of this nature. Once corrected,
the reset button will need to be pushed, as this fault will not self
clear.
NB - A fault involving the fan circuit or ignition circuit can
only occur if there is a heat demand. Once corrected, the
reset button will need to be pushed, as this fault will not self
clear.
NB - A fault in the ionisation circuit will be identifyable when
the ignition cycle is repeated 5 times.
?
?
Page 18
GENIE C, S & DUAL - SPARES
SPMBC009
100C Flow Overheat Stat
SPMBG055
80C Flow Control Stat
SPMBC011
Flow Sensor
Genie S
SPMBG057
Pool Thermostat PCB
SPMBG008
Condensate Pressure Switch
SPMBG054
Relay
SPCOH2/003
Pressure Gauge
Page 19
GENIE C, S & DUAL - SPARES
Item Mfg’ Part Number Supplier Part No
Primary Heat Exchanger (Genie35) M2136 SPMBG001
Primary Heat Exchanger (Genie 50) M2139 SPMBG002
Secondary Heat Exchanger (Bowman) M2745 SPMBG053
Propane Ori ce (Genie 35) M2150 SPMBG014
Propane Ori ce (Genie 50) M2151 SPMBG015
Combustion Fan M2138 SPMBG003
Gas Valve M2140 SPMBG004
Ignition Control (Honeywell) M2141 SPMBG005
Pool Thermostat PCB M2746 SPMBG057
Heat Exchanger Door Seal M2995 -
Relay M2688 SPMBG054
Pressure Gauge M4240 SPCOH2/003
Water Pressure Switch 651284 SPCOH2/014
HT Lead M2142 SPMBG006
Condensate Syphon M2143 SPMBG007
Condensate Pressure Switch M2144 SPMBG008
Spark & Sense Electrode M2146 SPMBG010
Flue High Limit Thermostat M2875 SPMBG060
Flow Control Thermostat M2667 SPMBG055
Flow High Limit Thermostat M0868 SPMBC009
Flow Sensor (Genie C) M2149 SPMBG013
Flow Sensor (Genie S) M3338 SPMBC011
Pool Temperature Sensor M2798 SPCOH2/002
Genie Pump M2683 SPMBG056
Expansion Vessel M3369 SPCOH103
Page 20
Genie CVBC Honeywell Controller error codes
Several checks are included to protect the boiler and its environment. Some checks are made even when
there is no demand for heat and will lead to “gas” lockout, which can only be cleared when the fault is recti-
ed. This includes the High Limit thermostats (in the ue and on the primary ow pipe) and the electrical
connection to the gas valve coils.
Other “gas” lockouts will occur during the heating operation of the unit and in the case of some lockout and
blocking conditions the fan may still operate depending on the parameter option fan On/Off during error.
Complete list of errors is given as following:
External Lock out conditions: Internal lock out conditions:
01 Flame lockout after several ignition trials 10 EEPROM (I2C) com error
02 False Flame Lockout. 20 IO Error
03 High Limit error 21 ADC test HUP
05 Fan Tacho Signal error 22 ADC test LUP
08 Flame circuit error
Blocking condition codes:
09 Valve driver circuit error
34 Low mains voltage
35 Mains Frequency error
36 Mains difference error
xx Other faults
External Lock out condition codes
FAULT 1 = Lock out signal after no ame and/or all ignition attempts have completed. This error condition is
stopping the boiler and to get to the normal operation again, a manual reset is required.
FAULT 2 = False Flame error - when a ame current is detected in when there should be no ame present
(i.e. when the gas valve is closed).
FAULT 3 = High limit error – if one or both of the two High Limit sensors detects a temperature of more then
105C or if Hi limit sensors or wiring is open circuit an error 3 will be generated.
FAULT 5 = Fan Tacho Error – The measured fan speed is not within 900 RPM of the
requested fan speed after 20 seconds. Connections or fan is open circuit.
FAULT 8 = Flame circuit error - during normal operation of the ignition controller, the ame circuit is regu-
larly checked. This check compares actual to predicted behaviour patterns and will result in error 8 if the
actual readings fall outside the predicted.
Internal Lock out condition codes
FAULT 10 = EEprom communication error. Non correct behaviour of the I2C protocol caused this error to
happen. EEPROM is not accessible. Fault with communications port on the controller itself. Replace Hon-
eywell controller if this fault persists.
FAULT 20 = IO error. Internal check of valve command and the signal feedback. The high limit circuit signal
is also checked. If the feedback signals are not aligned with commands for more than 3.5s, then a lockout
occurs.
GENIE C, S & DUAL - MICROCOM SOFWARE
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