C. TROUBLE SHOOTING
Before following this troubleshooting read TRIAL OPERATION on page
¥ | DISPLAY Problems, A thru C |
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¥ | HELP UP Problems, D thru E | ¥ BUZZER Problems, F | ||
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PROBLEM - A: PLEASE SET TIME OF DAY | does not appear in display window when power supply cord is | |||
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| plugged into wall outlet. |
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1 |
| Check: 1. POWER SUPPLY |
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| 2. | FUSE (See CHECKOUT PROCEDURES FOR FUSE BLOWING: on page | ||
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| 3. | OVEN CAVITY THERMOSTAT |
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0 120
120V | Replace | Normal | Runs |
| circuit board | circuit board |
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WH
RD
Measure voltage between pin 1 and pin 3 of connector CN1.
Voltage | Correct | Normal | Runs |
incorrect | connections | resistance |
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PROBLEM - B: Display does not show correct numbers and/or correct indications when programmed.
1
Measure resistance of touch key board after removing connector S1.
(See page
Normal | Check contact | |||
resistance | of connector S1 | |||
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Resistance | Replace touch |
incorrect | key board. |
Contact | Replace | Normal |
| Runs | |||||||||||||||||
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| ok | circuit board | circuit board |
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Poor | Correct | Normal | Runs |
contact | seating | contact |
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| Runs |
Normal touch
key board