Frigidaire GLBM188HB, Руководство по обслуживанию

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Page 19
GLBM188HB
8 – 4
If the monitor fuse is blown by improper switch operation, the monitor fuse and monitor switch must be replaced with “monitor f use and monitor
switch assembly” part number FFS-BA042WRKZ, even if the monitor switch operates normally. The monitor fuse and monitor switch assembly is
comprised of a 20 ampere fuse and switch.
5. Reconnect all leads removed from components during testing.
6. Reinstall the outer case (cabinet).
7. Reconnect the power supply cord after the outer case is installed.
8. Run the oven and check all functions.
[10] J: HOOD THERMOSTAT TEST
1. THERMOSTAT (60 ° C ON)
1. Disconnect the power supply cord, and then remove outer case.
2. Open the door and block it open.
3. Discharge high voltage capacitor.
4. A continuity check across the thermal cut-out terminals shoul
d indicate an open circuit unless the temperature of the thermal cut-out reaches
approximately 140 ° F(60 ° C) or more. At that temperature, the contacts will close. The thermal cut-out opens automatically at approximately
113 ° F(45 ° C).
5. Reconnect all leads removed from components during testing.
6. Reinstall the outer case (cabinet).
7. Reconnect the power supply cord after the outer case is installed.
8. Run the oven and check all functions.
[11] K: HOOD FAN MOTOR TEST
1. Disconnect the power supply cord, and then remove outer case.
2. Open the door and block it open.
3. Discharge high voltage capacitor.
4. If the motor does not turn, touch the Vent Hi/ Lo/ Off pad once (set hood fan motor power “HIGH”) and check voltage between pins “1” and “2”
(Blue and Black wires) of the 6 pin connector. If 120 Volts appear and the hood capacitor is good, replace the hood fan assembly. If 120 Volts does
not appear, check the motor circuit. The resistance values of motor terminals are as follows:
5. Reconnect all leads removed from components during testing.
6. Reinstall the outer case (cabinet).
7. Reconnect the power supply cord after the outer case is installed.
8. Run the oven and check all functions.
[12] L: TOUCH CONTROL PANEL ASSEMBLY TEST
The touch control panel consists of circuits including semiconductors such as LSI, ICs, etc. Therefore, unlike conventional microwave ovens, proper
maintenance cannot be performed with only a voltmeter and ohmmeter.
In this service manual, the touch control panel assembly is divided into three units, Control Unit (Display unit), Key Unit and Power Unit, and trouble-
shooting by unit replacement is described according to the symptoms indicated.
Before testing,
1) Disconnect the power supply cord, and then disassemble as per “HOOD LOUVER REMOVAL”, “REMOVAL OF OVEN FROM WALL” and
“OUTER CASE REMOVAL”.
2) Open the door and block it open.
3) Discharge high voltage capacitor.
Resistance between;
WHT(1) AND GRY(4) = 0 shorted)
BLK(2) AND GRY(4) =32
WHT(1) AND BLK(2) = 32
BLK(2) AND RED(3) = 14
RED(3) AND YLW(6) =11
ORG(5) AND YLW(6) = 6
1 2 3
4 5
RED BLK WHT
YLW ORG
6
GRY
32
14 6
HOODFAN
CAPACITOR
GRY
ORG
WHT
BLK
1
2
3
6
RED
YLW
4
5
6-PIN CONNECTOR
OF HOOD FAN MOTOR
11