IDEAL INDUSTRIES HE12, HE9, HE18, HE15 manual Fault Finding

Page 42

FINDING

START

Is the mains on neon 'I3' illuminated?

YES

NO

 

Is there a live supply on EITHER

NO

 

terminal of overheat 'stat?

 

 

YES

 

Is there a live supply on BOTH

NO

 

terminals of overheat 'stat?

 

 

Check that the boiler thermostat is set at maximum and the mains on/off switch is ON. Is the fan turning ?

FAULT FINDING

Check mains supply and fuses.

Check programmer and system

thermostats are all ON.

Check that boiler plug and socket

are OK and fully connected.

YES NO

If condensate pump kit fitted check

continuity of C-NC terminals

 

YES

 

Can the overheat 'stat

 

NO

 

be reset when the

 

 

 

 

 

system is cold ?

YES

 

 

 

 

 

Remove the sensor

 

 

 

(NTC) from the PCB.

 

 

 

Is the fan turning ?

 

 

 

Check for condensate blockage

Reset the overheat 'stat. Set control 'stat to maximum. Allow the boiler to reach temperature - if the overheat 'stat trips again, measure flow temperature.

If above 90oC replace control 'stat. If below 90oC replace overheat 'stat.

Replace the overheat thermostat

Replace the sensor

FINDING FAULT

YES

 

NO

 

 

 

 

 

 

 

 

 

 

 

 

Is there a supply on the fan

 

 

 

 

NO

 

 

 

connector at PCB ('Molex'

 

 

 

marked 'FAN'?).

 

 

YES

Is there a supply at the fan?

 

YES

 

NO

 

 

 

 

 

 

 

 

 

 

Change

 

Rectify bad

fan

 

connection

NO

Has the fuse blown on PCB ?

 

YES

 

 

 

 

 

 

 

 

NO

 

 

 

 

 

 

NO

 

Is there a live supply on the

 

 

 

 

violet lead to pressure switch?

 

 

 

 

 

 

 

 

 

 

YES

 

 

 

 

 

 

NO

 

Is there a live supply on the red

 

 

 

 

 

 

 

lead to the pressure switch?

 

 

 

 

 

 

 

 

 

Replace fuse BUT, before

attempting to start boiler, check for

short between live and neutral,

also between live and earth, on all

items plugged into PCB

Check all connections to PCB. If no error found, replace PCB.

Check connections and leads to pressure switch. If no fault found change pressure switch.

FAULT

Is the ignition electrode sparking?

YESNO

Does the pilot light ?

YES

YES

 

Is there a live supply on

NO

BOTH terminals of limit stat?

 

 

 

 

 

YES

YES

 

 

 

Is there a live supply on BOTH

 

terminals of the flue protection stat

NO

 

 

 

 

Check PCB by substitution

Change limit thermostat

Reset flue protection thermostat

Change flue protection thermostat

FAULT FINDING

NO

Is there a gas supply to the boiler?

YES

Is the pilot

injector blocked?

NO

Ensure pilot and main gas valve leads are not crossed over.

Is there a supply

voltage at pilot

gas valve?

YES

Does the spark

stop after the

pilot is lit?

NO YES

Check the

polarity of the mains supply.

Check the

continuity of the ignition lead from connector to electrode.

Does the

spark now

cease when

gas is lit?

Is there a regular spark from YES

tube 'SG1' on the PCB?

NO

Is the boiler casing

correctly fitted?

YES

Does main burner

cross-light from pilot?

NO

Is there a supply on terminals

of main gas valve?

NO

YES

 

 

Is the main burner

injector clear?

Check gap at ignition electrode. Check electrode and lead are undamaged and not close to earthed metalwork.

Check all connections to PCB. If no fault found change PCB.

Check pressure switch sensing

pipes for blockages, bad connections

and reversed connection. Check S trap for blockage.

Is pressure difference at switch

greater than

0.9 mbar?

 

YES

NO

 

 

 

 

 

 

 

YES NO

 

 

 

NO

 

 

 

 

 

 

 

 

 

 

 

 

YES

Change

Change

pressure switch

fan

Replace

 

Check all connections to PCB.

 

Replace main gas

gas valve

 

If no fault found, replace PCB

 

solenoid valve

 

 

 

 

 

42

classic HE - Installation & Servicing

Page 41 Page 43
Image 42
Page 41 Page 43
Contents Installation and servicing Classic HE Installation & Servicing Document Amendments General Data Key to symbolsGeneral HE12 HE15 HE18Classic HE Optional Extra Kits General IntroductionSafe Handling Location of BoilerBoiler Clearances Installation from inside onlyGeneral Boiler Water Connections Side and Rear FlueGAS Supply Flue InstallationCompartment Installations BathroomsWater Treatment General TerminalAIR Supply Water Circulation SystemOpen Vent System Requirements Fully Pumped LOW Head InstallationsElectrical Supply Condensate Drain Refer to Frames 38, 39General Sealed System Requirements Sealed System Requirements Installation Boiler Assembly Exploded viewHardware Pack 1 Contents Installation UnpackingUnpack and check the contents Pack a Contents Pack B ContentsPack Product No Installation Packaging and Casing RemovalDetermining the Flue Length Side Outlet Kit Product NoFlue Assembly Exploded View Wall Mounting TemplatePreparing the Wall Cutting the Flue wall thicknesses of 75 to 705mm Cut to length X, refer to FrameRemove any burrs and remove the inner flue support ring Mounting the Boiler Connecting the Flue to the BoilerWall Mounting Plate Without Optional Flue finishing KitFor wall thickness 270mm to 775mm Fitting the Flue Assembly Cutting the Flue For flue lengths 270 to 775mm onlyInstallation Mounting the Boiler Flues over 1 metre longFlue Extension Ducts Fitting the KITRoof Flue KIT Contents / Options FlueInstallation Flue Terminal Position Terminal Position Minimum DimensionFlue Arrangement Installation Assembling the Roof Flue KIT Engagement in the final flue duct sealWater Connections Condensate Pipe Termination ConfigurationsGAS Connection Condensate DrainCondensate Pipe Termination Configurations Electrical Connections External ControlsThermostat Installation Pictorial WiringMID Position Valve Pumped only Blue Black Brown Grey Orange Thermostat PinkInstallation TWO Spring Closed Valve Frost ProtectionBlue Yellow/green Black Orange Brown Violet Red Pink White To gain access to the gas valve Installation Commissioning and TestingFitting the Boiler Casing See diagram A, Frame Initial LightingHanding Over Initial LightingGeneral Checks Water Circulating SystemBurner and AIR BOX Removal Servicing Servicing ScheduleBoiler Front Panel Removal Disconnect the electrical supply and turn off gas supplyServicing Cleaning the FAN Assembly / the Flueways Cleaning the Burner and Pilot AssemblyCleaning the Recuperator GAS Pressure Adjustment Servicing Cleaning the SiphonReassembly Replacement of Parts GeneralThermostat control Servicing Overheat Thermostat ReplacementOn/off switch Thermistor sensor leadPilot Burner Replacement Servicing Limit Thermostat ReplacementFlue Protection Thermostat Replacement Pull off the two electrical connectionsServicing Ignition Electrode and Lead Replacement Main Burner and Main Burner Injector ReplacementGAS Control Valve Replacement Printed Circuit Board PCB Replacement Servicing FAN ReplacementAIR Pressure Switch APS Replacement Combustion Chamber Insulation ReplacementHeat Exchanger Replacement Casing Front Seal ReplacementServicing Servicing Siphon Replacement Fault Finding FindingShort List of Parts GC Part No Description Qty Product NoShort List of Parts Short Parts List Installer Notification Guidelines GAS Boiler Commissioning Checklist Service 5 Date Service 1 DateService 3 Date Service 7 DateTechnical Training Certified ProductUsers guide Important Notes SafetyElectricity Supply Minimum ClearancesMaintenance Control of Water TemperatureCleaning To Shut Down the BoilerPoints for the Boiler User
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HE12, HE15, HE18, HE9 specifications

The IDEAL INDUSTRIES HE series, comprising the HE24, HE18, HE15, and HE12 models, represents a significant advancement in the field of electrical testing and measurement tools. These versatile testers stand out in professional environments for their high accuracy, user-friendly interfaces, and advanced features designed to enhance efficiency and reliability in electrical inspections.

The HE24 is the flagship model, boasting an extensive range of functionalities. It includes advanced digital multimeter capabilities, allowing for precise measurements of voltage, current, and resistance. Its True RMS feature ensures accurate readings, even with non-linear loads. The HE24 also incorporates advanced connectivity options, including Bluetooth technology, enabling users to transfer data wirelessly to smartphones or tablets for further analysis. The large, backlit display enhances visibility in various lighting conditions, making it an ideal tool for both indoor and outdoor use.

The HE18 model, while slightly more streamlined than the HE24, still offers robust capabilities. It features multiple testing modes, including continuity and diode testing, catering to a wide range of electrical tasks. The HE18 also utilizes a user-friendly interface, allowing technicians to navigate easily through various functions. Equipped with a protective rubber housing, this model is durable and built to withstand the rigors of frequent use on job sites.

The HE15 and HE12 models represent the compact, entry-level offerings in the HE series. Designed for the budget-conscious user, these models retain essential functionalities such as basic voltage and current measuring capabilities while prioritizing ease of use. The HE15 includes a simple LED indicator to signal when measurements are being taken, promoting straightforward operation. Additionally, the HE12 features a lightweight design, making it the perfect tool for on-the-go technicians.

All models in the IDEAL INDUSTRIES HE series are engineered with safety in mind, adhering to stringent international testing standards. They provide superior insulation resistance and a high degree of accuracy, mitigating the risks associated with electrical work. Furthermore, their IP-rated enclosures ensure protection against dust and moisture, enhancing longevity.

In conclusion, the IDEAL INDUSTRIES HE24, HE18, HE15, and HE12 series represent a comprehensive range of electrical testing tools that cater to professionals' varied needs. With their combination of advanced features, user-friendly designs, and safety compliance, these models are excellent choices for any electrical technician aiming for accuracy and efficiency in their work.
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