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Outdoor Weather Sensor
- Wired weather compensation sensor
- Simple and discreet
- Room temperature
Climapro₂ RF Control
Climapro₂ RF
- Two channel wireless programmable room thermostat
- Backlit display provides advanced user control and functionality
- Capable of room and weather compensation*
- Simple to use handheld unit
Hydracyl
Single Coil Cylinder for Boilers
- High grade stainless steel cylinder with laser welded seams
- High recovery heating coil - just 20 minutes
- Glow-worm 2 year guarantee
- 25 Year Warranty on cylinder shell. (Subject to water quality, correct installation and annual servicing)
Climapro₂ RF Control
Climapro₂ RF
- Two channel wireless programmable room thermostat
- Backlit display provides advanced user control and functionality
- Capable of room and weather compensation*
- Simple to use handheld unit
230V Room Thermostat
- Easy to use
- Simple analogue control of room temperature
- Compatible with all Glow-worm boilers with the exception of Ultracom₂ 35 store
Wireless Outdoor Sensor
- Wireless weather compensation sensor using inbuilt PV cells
- Enables weather compensation when paired with Climapro₂ RF & Climapro₁ RF
- Works on indirect sunlight which re-charges the small PV cells
- Simple and quick to install
Optiflue
Passive Flue Gas Heat Recovery System by Glow-worm
- Improves hot water efficiency
- Increases boiler efficiency
- Reduces bills
- Easily fitted
Smart Wiring Centre 2
Intelligent wiring centre
- Allows Glow-worm intelligent controls to be used with Ultracom and Flexicom heat only and system appliances
- Can control up to two heating zones and one domestic hot water zone
- Simple colour-coded connectors for easy wiring and installation*
Climastat room thermostat
- Easy to use
- Extra low voltage
- Simple & discreet 2 wire connection
- Polarity not important
Energy LPG combi boiler
FREE 7 year guarantee out of the box
- Cupboard fit
- High efficiency, modulating Grundfos pump
- High quality, automotive grade, aluminium heat exchanger
- FREE 7 year guarantee out of the box with option to extend*
Energy LPG combi boiler
ErP A rated small combi boiler
- Cupboard fit
- Highly efficient for lower running costs
- Instant hot water supply
- FREE 7 year guarantee out of the box with option to extend*
Climastat
Thermostat by Glow-worm
- Easy to use
- Extra low voltage
- Simple & discreet 2 wire connection
- Polarity not important
Fault Finding Codes
Fault finding codes for the Compact s range
Fault finding codes for the Compact s range Symtoms Possible Faults No DHW Check external controls, Please test for 230V on switch live contact No C/H Check external controls, Please test for 230V on switch live contact No C/H or DHW Check external controls, Please test for 230V on switch live contact Boiler locks out within 10 seconds Check pump proving switch, air pressure switch and overheat stat Poor burner pressure Check burner pressure/ignition adjustment pots on PCB Back to overview
How will Boiler Plus affect me and my business?
The upcoming Boiler Plus regulations require all new boiler installations to have a minimum ErP efficiency of 92% alongside time & temperature controls. For combi boilers, one of four additional energy saving measures need to be fitted. The measures are: Load compensation Weather compensation Smart Control FGHR If you fit Glow-worm controls, this means fitting: MiGo personal heating assistant Climapro2 RF control Climapro1 control Climastat 230V room thermostat Wireless Outdoor Sensor Outdoor S...
Glow-worm's Airstream dream
Published 30-10-2019 Glow-worm is very proud that its eye-catching Airstream demonstration trailer has been awarded Gold in the Most Effective Stand or Display category at the Field Marketing and Brand Experience (FMBE) awards 2019. The award recognises and celebrates the eye-catching design of the iconic Airstream, branded to deliver the message that the Glow-worm Mystery Trip is back for loyal Glow-worm installers. The Airstream has been on the road for most of 2019, visiting plumbers’ mercha...
Conditions for Use
Glow-worm is a trading name of the Vaillant Group, which includes Vaillant GmbH and Vaillant Group UK Limited. Vaillant will adequately endeavor to ensure that this website will contain exact and valid information. We however do not assume liability for or guarantee the up-to datedness, correctness and completeness of the information made available or the suitability of this information for a specific purpose. All information is made available “as it is”. Vaillant does not assume the responsibi...
Fault Finding Codes
Fault finding codes for the Flexicom cx range
Fault finding codes for the Flexicom cx range Codes Description F1 Ignition fault F3 Fan unable to reach ignition speed F4 Ignition fault F5 Overheat Fault F6 Central heating flow thermistor F7 Domestic hot water thermistor F9 Water pressure sensor fault, blocked flow filter or pump fault F10 Central return flow thermistor F11 Flow and or return thermistor fault F13 PCB memory or sensing fault F14 Gas valve control defective F15 E-bus voltage failure F22 Low water pressure or ignition temperatu...
Fault Finding Codes
Fault finding codes for the Ultracom₂ sxi range
Fault finding codes for the Ultracom₂ sxi range Codes Description F00 Flow heating temperature sensor fault F01 Return heating temperature sensor fault F10 Flow heating temperature sensor fault F11 Return heating temperature sensor fault F20 Overheating fault F22 Low water pressure F23 Water circulation fault F24 Water circulation fault F26 Fault in gas valve F27 Flame detection fault F28 Ignition fault F29 Loss of flame during operation F32 Incorrect air pressure F49 EBUS voltage fault F61 Fau...
Frozen condensate pipe
During low temperatures it's possible that your condensate pipe may freeze, if the pipe exits outside of your property. The condensate pipe is usually a white overflow pipe, similar to one you may find on a washing machine or sink waste pipe. It allows your boiler to dispose of condensation to an outside drain via this pipe. The pipe will usually be located on the external wall outside from where your boiler is. Check out the steps below or download our handy guide. Download our handy guide her...
Glow-worm - great value easy to use boilers for your home
Over 80 years pedigree manufacturing heating systems All boilers made in the UK at award-winning Derbyshire factory 7-years guarantee on our Energy boiler range for peace of mind Supported by service team with 250 engineers and UK call centre Installed by a network of independent Glow-worm installers Replace boiler Our boilers go through 499 quality checks at the factory to ensure reliability. Find your perfect boiler Delivering instant hot water with easy to use controls. Review our Energy...
In light of the extraordinary circumstances surrounding the Covid-19 outbreak, we understand that your local engineer may struggle to carry out their annual service checks on Vaillant or Glow-worm appliances on time. As you know the annual service validates the guarantee and without this annual service the guarantee is deemed void. Therefore all Vaillant and Glow-worm boilers registered with us with annual services due between February 2020 and June 2020 will maintain their guarantee if the ann...
Fault finding codes
Fault finding codes for the Energy boiler range Fault finding codes for the Betacom range Fault finding codes for the Betacom a range Fault finding codes for the Betacom c range Fault finding codes for the Compact e range Fault finding codes for the Compact s range Fault finding codes for the CI range Fault finding codes for the CI Plus range Fault finding codes for the cxi range Fault finding codes for the Flexicom cx range Fault finding codes for the Flexicom hx range Fault finding codes for ...
We’re so confident in the life-prolonging performance of our new Power System Filter that we’re offering a 10-year guarantee on every Energy boiler you install it on. The Power Filter’s high-quality brass construction delivers the reliability homeowners crave, while compact design gives you more siting options. It’s a great way to keep our Energy boilers glowing. Our new filter is made by Glow-worm and has been designed with the installer in mind.