Measure | Activity | Comment |
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M41 | • Measure the resistance of coil temperature sensor resistor | Disconnect sensing element |
| at 25º Celsius (77º F) resistor will read 1kOhm |
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| at 180º Celsius (356ºF) resistor will read 3,5kOhm |
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| • Resistor is higher on a higher temperature |
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| • Replace sensor with a value less than 900Ohm |
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| • For a test: |
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M50 | • Measure operational control or main power control switch with | Disconnect operational control |
| potentiometer: Potentiometer is 10kOhm and linear | (Poti) |
| • On level “0”: resistor = 0 Ohm |
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| • On maximum level resistance= 10kOhm |
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| • Resistor is proportional (linear) to swing angle |
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M60 | • Measure temperature inside the case |
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| • Admissible ambient temperature: 0°C/32ºF to appr. 70°C/158ºF |
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| • Check point is on the |
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M100 | • Check connection cable for serial operational control and |
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M101 | • Change serial operational control |
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M200 | • Check mains cable, perhaps one phase missing |
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| • Check the building fuses |
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M220 | • Disconnect ST2 on |
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| between brown and blue, |
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| Measured value: 200Ohm < R < 2kOhm |
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| • Replace rectifier circuit board |
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M240 | • Use suitable pan material |
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| • Test with a pan with a diameter of 24cm (4.75”) |
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M241 | • Disconnect mains power supply |
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| • Visually inspect : blackened cables, components or strip |
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| conductors? |
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| • Transistor module: measure internal diodes (UF = 0.4V) |
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| • Rectifier: measure internal diodes (UF = 0.5V) |
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| • Control trafo: measure electric voltage |
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| • Check power supply |
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| |
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M251 | • Check power switch on operational control |
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Part # 4526029 (02/22/11) | Page 13 |
