Glow Worm Flexicom Sx User Manual

Posted : admin On 10/7/2021

Dec 16, 2011  glow worm flexicom 18sx f9 fault, according to manual could be water presure sensor faulty or connector faulty/loose or pump ceased, how do i check to see which one is faulty or could it be something else? Managed to clear f9 fault 4 times approx by reset button, now f9 fault wont clear. Boiler Manuals and Literature Downloads. All of Glow-worm's boiler and control product literature, collected together in one place. Search for, view and download installation and service manuals for any one of our award-winning domestic boiler and heating control products. To be left with the user www.glow-worm.co.uk Instructions for Use High Efficiency Condensing System Boilers Flexicom hx. Glow-worm is a licensed member of the Benchmark Scheme which aims to improve the standards of installation. Flexicom 24hx Flexicom 24hx 13109 Position of name badge (typical shown) G.C. Listed below are all the manuals for Glowworm. Just click on the model or the Gas council number and the manual will download at the bottom of the page. After you have downloaded the manual double click on the download for the manual to open, if you want to save the download right click. The Glow-worm Flexicom SX is compatible with a broad range of third-party roomstats and clocks. It is also compatible with our advanced eBUS connected controls such as the MiGo. For more information on roomstats you can contact an approved installer by clicking here. Full instructions on how to operate are available in the user manual.

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1

Fitting the Analogue Timer (to a boiler without timer

housing)

If the boiler does not contain the timer housing,

follow the instructions below.

If the boiler does contain the boiler housing, follow

the instructions detailed in section 2.

1.1

Remove the front casing and hinge down the control

box.

1.2

Remove the timer blanking plate at the bottom of

the boiler by pressing the retaining latches, using an

appropriate tool e.g. a flat bladed screwdriver.

Carefully remove the blanking plate.

The timer kit harness and plug are attached to the

blanking plate to aid fitting of the timer.

Unplug the harness from the blanking plate by pressing

the retaining catch.

TIMER

BLANKING

PLATE

use a flat bladed screwdriver here

to remove the blanking plate

Worm

TIMER KIT HARNESS

AND PLUG

RETAINING

CATCH

TIMER

BLANKING

PLATE

1.3

Fit the plug to the timer kit socket, the plug will only fit

one way.

18 17

16

15

14

13

12

11

8

19

20

21

22

23

24

10

9

7

6

5

4

3

2

1

TIMER KIT SOCKET

1.4

Locate the timer kit body into the space left by the

blanking plate on the underside of the boiler.

TIMER AND

Glow Worm Flexicom 30 Sx Installation Manual

HOUSING

1.5

Ensure good positioning of the harness then replace

control box and front casing.

1.6

Re-establish mains and gas supply to the boiler.

When using the timer, push the bottom of the timer kit

slide to release it from it’s housing, allow the timer to

fall naturally, it’s movement is controlled by a damper,

do not pull the timer down. To re-engage the timer,

push gently upwards until it clicks into position.

0020136593 - 01/12 - Glow-worm

- 3 -

INSTALLATION

EN

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Listed below are the common Glowworm fault codes as described by the boiler manufacturer along with a possible cause.

Glow-worm Boiler Error Codes

Boiler ModelFault CodeCause of Problem
BetacomRed LED onLockout – low water pressure (increase pressure to 1.5bar) and reset boiler
BetacomRed LED flashingOverheat – check both overheat stats
BetacomYellow LED flashingTurn domestic hot water (DHW) control knob into temperature range and turn central heating (CH) temperature control knob into power (reset position) and wait for minimum of 30 seconds before turning into either summer or temperature position
BetacomYellow LED onFlame present on the burner
BetacomGreen LED onBoiler ready for operation
BetacomGreen LED offNo power to boiler – Check for 230volts into the appliance, check fuse on printed circuit board (PCB)
Betacom / Ultracom₂ cxi / sxi / 35F00 / F10 / F71Flow heating temperature sensor fault
Betacom / Ultracom₂ cxi / sxi / 35F01 / F11Return heating temperature sensor fault
Betacom / Ultracom₂ cxi / sxi / 35F20Overheating fault
Betacom / Ultracom₂ cxi / sxi / hxi / 35 / Flexicom cx / hx / sxF9 / F22Low water pressure (or ignition temperature rise too slow)
Betacom / Ultracom₂ cxi / sxi / 35F26 / F77Fault in gas valve
Betacom / Ultracom₂ cxi / sxi / 35 / CI / hxi / Xtramax HEF27 / F16Flame detection fault
All BoilersF28 / F1 / F4Ignition fault (flame detection)
Betacom / Ultracom₂ cxi / sxi / 35F29Loss of flame during operation
Betacom / Ultracom₂ cxi / sxi / 35F32Incorrect air pressure
Betacom / Ultracom₂ cxi / sxi / 35F49EBUS voltage fault
Betacom / Ultracom₂ cxi / sxi / 35F61 / F62 / F63 / F64 / F65 / F67Fault in the main board
Betacom / Ultracom₂ cxi / sxi / 35F68Fluctuation of flame signal
Betacom / Ultracom₂ cxi / sxi / 35F70User interface incompatible with the main board
Betacom / Ultracom₂ cxi / sxi / 35F72 / F84Permanent temperature difference between flow and return heating sensors
Betacom / Ultracom₂ cxi / sxi / 35F73 / F74Heating circuit pressure sensor fault
Betacom / Ultracom₂ cxi / sxi / 35F76Thermal fuse fault
Betacom / Ultracom₂ cxi / sxi / 35F83Thermal fuse fault
Betacom / Ultracom₂ cxi / sxi / 35F85Flow and Return heating sensor fault
Betacom / Ultracom₂ cxi / sxi / 35F86Underfloor heating contact fault
All BoilersERR / F12 / F18User interface fault
Betacom cTemperature 30 flashingFault on central heating (CH) thermistor
Betacom cTemperature 40 flashingFault on DHW thermistor
Betacom cTemperature 50 flashingFault on outside sensor
Betacom cTemperature 60 flashingLow system pressure
Betacom cTemperature 70 flashingFault on APS
Betacom cTemperature 80 flashingOverheat open circuit
Betacom cTemperature 90 flashingFlame or gas failure
Compact e / sNo DHWCheck dhw microswitch / Check external controls, Please test for 230V on switch live contact
Compact e / sNo C/HCheck dhw microswitch if dhw demand led is lit / Check external controls, Please test for 230V on switch live contact
Compact e / sNo C/H but boiler is firingCheck divertor motor and cartridge / Check external controls, Please test for 230V on switch live contact
Compact e / sBoiler locks out within 10 secondsCheck pump proving switch, air pressure switch and overheat state / Check pump proving switch, air pressure switch and overheat stat
Compact e / sPoor burner pressureCheck burner pressure/ignition adjustment pots on PCB
Ci Range (plus) / Si rangeF2Fan/APS
All BoilersF5Overheat Fault
All BoilersF6Central heating flow thermistor
All BoilersF7Domestic hot water thermistor
All BoilersF8Tank thermistor fault
sxi / si / ci (plus) range / Xtramax HEF9Water pressure sensor fault (please contact GW technical department for further information)
All boilersF10Central return flow thermistor
All boilersF11Main board connection fault
Ci (plus) / cxi / hxi / si / sxi rangeF12Connection fault between main printed circtuit board (PCB) and display PCB
Ci (plus) / cxi / hxi / si / sxi rangeF13Main pcb connection fault
Ci (plus) / cxi / hxi / si / sxi rangeF14Central heating flow temperature > 95 degrees
Ci (plus) / cxi / si / sxi rangeF15Gas valve stepper motor fault
Ci (plus) / cxi / hxi / si / sxi range / Xtramax HEF17Power supply is less than 170v
Ci (plus) / cxi / hxi / si / sxi range / Xtramax HEF19Central heating thermistor unplugged
Ci (plus) / cxi / hxi / si / sxi range / Xtramax HEF20Software incompatibility
cxi / hxi / sxi range / Flexicom cxF24Central heating return temperature > 90 degrees
cxi / hxi / sxi / Xtrafast 96/120 / Xtrafast 96/120E1F25 / F26 / F11Poor circulation
ci rangeF3Air fault
ci rangeF3Air fault
cxi / sxi / hxi range/ Xtramax HEF2 / F3Fan
cxi / sxi range / Flexicom cx / hx / sx / hxi / Ultracom cxi / cx / hxi / sxi / Ultrapower sxiF3Fan unable to reach ignition speed
Flexicom cx / hx / sx / hxi / Ultracom cxi / cx / hxi / sxiF9Water pressure sensor fault, blocked flow filter or pump fault
Flexicom cx / hx / sxF11Flow and or return thermistor fault
Flexicom cx / hx / sx / Ultracom cxi / cx / hxi / sxi / Xtramax HEF13PCB memory or sensing fault
Flexicom cx / hx / sx / Ultracom cxi / cx / hxi / sxi / Xtramax HEF14Gas valve control defective
Flexicom cx / hx / sx / Ultracom cxi / cx / hxi / sxi / Xtramax HEF15E-bus voltage failure
All boilersF25 / F23Circulation fault
Flexicom cx / hx / sx / Ultracom cxi / cx / hxi / sxiF43Generic error
Flexicom cx / hx / sx / Ultracom cxi / cx / hxi / sxiF70Software incompatible
Flexicom cx / hx / sx / Ultracom cxi / cx / hxi / sxiF73Unable to see pump activate
Flexicom cx / hx / sx / Ultracom cxi / cx / hxi / sxiF77Condensate pump error (optional)
hxi rangeF9Earlier models only (please contact GW technical department for further information)
hxi rangeF9Earlier models only (please contact GW technical department for further information)
Ultracom₂ 35 StoreF02 / F12Hot water temperature sensor fault
Ultracom₂ 35 StoreF03 / F13 / F79Storage tank temperature sensor fault
Ultracom₂ 35 StoreF81Overheating of hot water circuit
All UltracomNo display or Erloose connection X51
Xtramax HE RangeF24Cental heating return temperature > 90 degrees
Xtramax HE RangeF25Maximum temperature rise slope
Xtramax HE RangeF26Maximum delta temperature
Xtrafast 96/120 RangeF00No fault/td>
Xtrafast 96/120 Range / Xtrafast 96/120E1 RangeF00No fault
Xtrafast 96/120 Range / Xtrafast 96/120E1 RangeF02Air flow fault
Xtrafast 96/120 Range / Xtrafast 96/120E1 RangeF05Overheating
Xtrafast 96/120 Range / Xtrafast 96/120E1 RangeF06Central heating thermistor/wiring fault
Xtrafast 96/120 Range / Xtrafast 96/120E1 RangeF08Storage vessel thermistor/wiring fault
Xtrafast 96/120 Range / Xtrafast 96/120E1 RangeF09System pressure sensor fault
Xtrafast 96/120 Range / Xtrafast 96/120E1 RangeF10Fan fault
Xtrafast 96/120 Range / Xtrafast 96/120E1 RangeF13Main printed circuit board (PCB) fault
Xtrafast 96/120 Range / Xtrafast 96/120E1 RangeF14Central heating flow temperature > 97 degrees
Xtrafast 96/120 Range / Xtrafast 96/120E1 RangeF15Gas mechanism fault
Xtrafast 96/120 Range / Xtrafast 96/120E1 RangeF20Communication fault

Glow Worm Flexicom 18sx Installation Manual

Glow-worm Energy Boiler Range Error Codes

Fault CodeCause of Problem
F.00Flow temperature sensor
F.00Flow temperature sensor
F.10Flow temperature sensor short circuit
F.11Flow temperature sensor short circuit
F.12 and F.91Cylinder temperature sensor short circuit
F.13Domestic hot water cylinder temperature sensor short circuit
F.20Safety switch-off – overheating temperature reached
F.22Safety switch-off – low water pressure in boiler
F.23Safety switch-off – temperature difference too great (NTC1/NTC2)
F.24Safety switch-off – temperature rise too fast
F.25Safety switch-off – flue gas temperature too high
F.27Safety switch-off – fault in flame detection
F.28Ignition unsuccessful when starting up
F.29Flame loss
F.32Fan frost protection function active – fan speed outside the tolerance values
F.33Fan frost protection function active – air pressure switch fault
FA9eBUS fault – voltage too low
F.61Gas valve control system fault
F.82Gas valve switch-off control fault
F.83EEPROM fault – electronics defective
F.64Electronics/sensor/analogue-to-digital converter fault
F.85Electronics temperature too high
F.67Value sent back by ASIC is incorrect (flame slgnal)
F.88Unstable flame (analogue input), underfloor heating contact or gas valve fault
F.70Invalid product code (DSN)
F.71Flow/return temperature sensor
F.72Deviation in the water pressure sensor/return temperature sensor
F.73Water pressure sensor not connected or has short-circuited
F.74Electrical problem in the water pressure sensor
F.75Pressure sensor fault
F.78The safety cut-out in the primary heat exchanger is defective
F.77Fault: Condensate or smoke
F.78Interruption to domestic hot water (DHW) outlet sensor at external controller
F.83Burner temperature sensor fault
F.84Flow/return temperature sensor fault
F.85Temperature sensor fault
F.87Electrodes fault
F.89Pump fault
ConnectionNo communication between the printed circuit board (PCB) and the user interface

Glow-worm Error Codes F1, F4, F28 or F29

If you are seeing the error codes F1, F4 F28 or F29 on your boiler there’s an issue with your condensate pipe. This error appears when your pipe is frozen, which can happen during the cold months as it runs outdoors. You can fix this issue yourself if you feel confident enough, otherwise call an engineer.