FAULT FINDING

70 L.....F

(FLAME ERROR)

If the boiler reset button is

pressed does the boiler ignite for

a short time then extinguish?

YES

Check the detection electrode and

associated harness for:

continuity, visual condition, position (Refer to Frame 57).

Replace as necessary.

 

NO

 

 

 

 

 

 

NO

 

 

 

 

Is gas pressure available at

 

 

 

 

 

 

 

 

 

 

 

 

 

the boiler inlet ?

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

YES

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

NO

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Is 200V DC supply available

 

 

 

 

 

 

 

 

 

 

 

 

 

at the gas valve ?

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

YES

 

 

 

 

 

 

 

 

 

 

Check spark generator and associated

 

 

 

harness for continuity and visual condition.

NO

 

 

Refer to Frame 58. Are these functioning

 

 

 

 

 

 

 

 

correctly?

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

YES

 

 

 

 

 

 

 

 

 

 

Check the ignition electrode and associated harness for:

continuity, visual condition, position (Refer to Frame 56).

Are these functioning correctly ?

Check gas supply

and rectify fault

Check gas valve

wiring for continuity

Replace PCB

Replace

spark generator

Check syphon

 

 

NO

 

 

YES

 

 

 

 

 

 

 

 

 

 

 

Replace ignition electrode and associated

 

Replace gas valve

harness as necessary

 

 

 

 

 

 

 

 

 

 

 

 

and condensate drain pipework for blockage

FAULT FINDING FAULT FINDING FAULT FINDING FAULT FINDING FAULT FINDING

Note. Due to the wave form of the rectified voltage the reading will vary, depending on the type of meter used to measure the value (some may measure the possible peak voltage of 339V). In general terms, a reading greater than 150V indicates that the correct voltage is supplied to the gas valve. As an alternative to a multimeter a mains checking device may be used. E.g. an electrical screwdriver or a mains tester.

71 L.....E

or

H.....E

(BOARD ERROR)

 

 

 

NO

 

 

 

 

 

 

 

 

Check earth connection to the boiler. If value is still in

 

Check for an excess voltage between neutral

 

and earth. Is the value below 50V?

 

 

excess of 50V consult a Qualified Electrician to check the

 

 

 

 

 

 

 

 

 

household electrical supply and circuitry

 

 

 

YES

 

NO

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

LE ONLY: Check continuity of OH thermostat.

 

Correct wiring or replace thermostat

 

 

 

 

 

 

 

 

 

 

 

Is this correct?

 

 

 

 

 

 

 

 

 

 

 

 

YES

Correct wiring or replace detection lead

HE ONLY: Check earth wire is connected to

NO

 

detection lead. Is this correct?

Correct connections

YES

NO

 

Check all earths for continuity

Press and hold reset button for 2

 

seconds. Does boiler operate

YES

 

 

correctly?

OK

YES

NO

 

 

 

 

Turn boiler off and wait for 5

YES

 

seconds.Turn boiler on.

 

OK

 

Does boiler operate correctly?

 

 

Internal fault within the PCB

NO

 

 

 

 

Replace PCB

 

46

icos - Installation & Servicing

Page 45 Page 47
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Image 46
IDEAL INDUSTRIES HE12, HE24, HE18, HE15 manual Fault Finding, 70 L.....F, Flame Error, 71 L.....E, Board Error
Page 45 Page 47

HE12, HE15, HE18, HE24 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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