Advice 1: Why in the gas column no spark

Gas column, namely, gas instantaneous water heater designed to quickly produce hot water for various household needs. But geysers periodically fail and they have to repair it yourself or with the help of professional services.
Why in the gas column no spark
No spark in the gas column is often so frivolous problem, what to fix it on their own, not having skills in repair of household appliances and gas equipment. Moreover, most gas water heaters have the same principle and to understand their work on the example of any particular model.

If the column for a long time not used, then the reason for the lack of a flame could be the accumulation of air in the pipeline. As a rule, short-term grazing (1-1,5 min.) solves this problem. If, before taking measures to repair the user tried several times to turn on the heater, during these attempts the air out himself.

If gas heater does not ignite, first check the batteries that run all electronics and piezo ignition. The easiest way is to buy new batteries and change them. In 90% of cases this gives the desired result. Another thing, if the speaker is powered by built-in generator. In this case, and, if new batteries did not help, check for spark at the time of switching of the column. It is possible, due to a malfunction of the piezoelectric element or to supply the spark cable is in the wrong place. Inspect the electrode and wire for external damage.

If external damage is observed, check their condition with a multimeter. Checking resistance on both ends of the wire, you can determine whether it. In the case of internal rupture of the meter should show infinite ohms. If the cable is working properly, the reason lies in the piezoelectric element or the power button. Use a multimeter to check the electrode contacts in the ignition. The presence of the voltage will indicate that all items are serviceable, except of the piezoelectric element. If you have confidence, you can replace it yourself with a screwdriver and soldering iron.

Before replacing the faulty components, don't forget to clean contacts of the electrode, power cable and button ignition (automatic control of the ignition). Rarely, but it happens that the voltage of the banal oxidation of contacts.

Gas water heaters latest models with the control electronics and power supply from integrated generator is more complex than the speakers on batteries and push button ignition. The complexity of their self-repair is the difficulty of soldering and inaccessibility of spare parts. If you have skills of soldering of electronic elements and a good soldering iron, you can take on the job. If not – better not risk it. Spare parts it is better to look at specialized workshops. In stores that sell gas and water heating equipment, they are almost not sold

Advice 2: How to check for spark

Spark discharge is used in gasoline internal combustion engines. It occurs at the spark plug and ignites the air-petrol mixture in the cylinder. If engine does not start, in most cases, this is due to the malfunction of the high voltage wiring and the disappearance or weakness of sparks.
How to check for spark
You will need
  • - candle key;
  • - a set of tools;
  • - brush for cleaning of candles;
  • - feeler gauge to check clearance.
Make sure that the problem is with the sparkle in the candlelight. To do this, remove the wire from any candle. Set its tip at a distance of 5-6 mm from any unpainted part of the engine (this is ground). When turning the starter between the wire and the weight should slip a powerful bluish spark. This means the problem is with candles. If it is not - the problem is in the electrical equipment of the vehicle.
Disconnect high-voltage wires from spark plugs. A special key (called the candlestick) remove all spark from the cylinder block. Coil them in a row uninsulated wire for the conductive part, which related to the cylinder block. The contact must be tight. The free part of the wire securely on the weight of the car. Can any part of the engine is not covered with paint or anti-corrosion composition. Again, put on the candles high-voltage wires.
Crank the engine with the starter. Normal spark should slip between the electrodes with a constant frequency and amplitude. It should have a purple color to be relatively thick (diameter must be visually comparable to the electrode diameter), clearly snapping at the discharge. This spark needs to be on each candle.
Thin threadlike spark tells about faulty ignition system. Carefully inspect the plugs. The electrodes can be covered with soot, melting or wet (covered with oil or fuel). Soak the plugs in kerosene and remove the carbon brush of copper wire. If the electrodes are damaged, replace the plug.
Special feeler gauge check the gap between the electrodes. It should be 0,8-0,95 mm. If it is more or less, bend the side electrode. Do it with a special key, this will keep the candle safe. Do not attempt to bend the Central electrode it will cause damage to the candles.
Poor spark on all four spark can be caused by a weak battery. Recharge it and check the electrolyte density. Very rarely the lack of spark can be caused by a faulty high voltage ignition coils. To see this, make the spark gap is about 4 mm. If the cranking of starter, a strong spark, replace the coil.
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