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Manafacture: Garland File size: 2.53 mb File name: Language of manual:

To avoid injuries (burns) do not touch the heating area. Step Action Level Result 1 Place the pan on the heating area until water is boiling 9 (12) Heat, water is boiling 2 Reduce the power by turning slowly the control knob (12) 9...1 Heat rating reduces (water does not boil anymore), phase current reduces continuously Fan With this test, the fan observation as well as the degree of soiling is verified. At the beginning of the test, the induction cooker should be cold. You need a pan with a bottom diameter of 28 cm (11”). Step Action Level Result 1 Place a pan on the heating area and fill it up with 1- Liter or (34 oz) of water 9 (12) Heat 2 Measure the time until the fan starts working 9 (12) The fan should start working after 6-8 minutes 3 Go on cooking for about 30 minutes 9 (12) The heating process may periodically be interrupted for a period of 2 seconds. Unit keeps working. 4 Stop the induction cooker 0 The fan keeps working. Test Of The Components CAUTION The power cord must be disconnected from the power supply. Rectifier The rectifier is fixed at the power board with four wires. Rectifier connections must be unsoldered for correct test results To begin, you have to measure the forward voltage between anode – cathode by means of the multimeter (please use only multimeters with diode check as an additional function). The forward voltage for this diode is of about 0.5VDC in direction A – K, in the opposite direction is “NO” current flow. If one of the four diodes shows a short circuit or an interruption, the rectifier is defective and must be replaced. Transistor module (IGBT) GEC The IGBT (Insulated Gate Bipolar Transistor) is fixed onto the power print (board) with three solder connections. The IGBT Transistor has as a supplementary protection an integrated recovery diode. To begin, measure the on-state voltage of this diode. The forward voltage of this diode is approximately 0.5VDC. If the recovery diode shows a short circuit or an interruption, the IGBT transistor is defective and must be replaced. CU (RTCS) Sensors CU Sensor 1 (Center) 4 – 5.5 OhmsCU Sensor 2 (Outer) 4 – 5.5 Ohms The two CU sensors are mounted directly on top of the coil for base-line, (counter top) cookers. Both the center and outer sensors, will measure approximately 4 - 5.5 Ohms. Potentiometer The potentiometer is mounted onto the main power switch. On setting “0” the reading will be 0 - Ohms and on the maximum level, the resistor will read 10kOhm (10,000 Ohms). Resistor is proportional (linear) to swing angle. (see following photo for measurement points). Measurements taken across points shown. SECTION 5 – MAINTENANCE/SERVICE Maintenance work must only be completed by authorized personnel. Before beginning any maintenance work, ensure that all power supply is disconnected and the appliance has had an opportunity, to cool down. It is important that the following maintenance procedures be performed as recommended. Such preventative maintenance measures will extend t...

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