Adceng: Domestic Appliances: Fagor Water Heaters: Check Faults: Electrical Measurements

Fagor Water Heaters: Check Faults

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Confort - Electrical Measurements

1. Checking the Voltage of Batteries

Conditions:

Measurement can also be performed between the POSITIVE of the battery and chassis

Voltage ≥ 1.2V.

2. Checking of Micro

Conditions:

	In the electric-powered heaters the connector must be taken out of its location to measure the micro continuity.
	In the battery-powered and generator powered heaters the measurement can be performed without taking the connector out of its location.
	Open the hot water tap, and while opened, the micro should close the contacts so there will be continuity. With the tab closed there must not be continuity.

0 Ohms

3. Checking Connection of Electrodes and Electronic Circuit

Conditions:

	Check the connections between the electrodes and the circuit.
	Verify that the cables are not peeled.
	Check that the electrodes:

	do not have cracks in the ceramic body
	their metalic part is fixed,
	they are not “fallen” towards the burner
	their metalic part is not dirty or has traces of oxide
	they are not in contact with the body.

4. Checking the Voltage in the Servovalve

Voltage ≥ 1.2V

Conditions:

Perform measurement at ignition, when an hot water tap is opened and the secuence of ignition starts.
Measure direct voltage

5. Checking the impedance of the Servovalve

The value should be between 45 and 55 Ohms

Conditions:

The measurement must be performed when the heater is switched off, without opening any tap and releasing the Servovalve cable.

Tel: +27 (0)11 493 8209, Fax: +27 (0)11 493 1459, Email: appliances@adceng.co.za