Wait at least 5 minutes after disconnecting line voltage from equipment before opening blower motor to prevent electric shock which can cause personal injury or death.
→51. | Remove tape from door switch and turn power off at main disconnect. | Ð | Ð | 52 | |
→52. | Disconnect PL10 from blower assembly. | Ð | Ð | 53 | |
→53. | Remove control box assembly from blower shelf and position out of the way. | Ð | Ð | 54 | |
→54. | Remove | Ð | Ð | 55 | |
blower assembly from furnace. | |||||
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→55. | Disconnect both | Ð | Ð | 56 | |
sure to depress release latches on connectors or they may get damaged. | |||||
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→56. | Remove two | Ð | Ð | 57 | |
REMOVE TORX HEAD SCREWS located next to | |||||
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→57. | Carefully lift blower control module off blower motor. Depress latch on internal connector to discon- |
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nect blower control module from motor portion of blower motor. DO NOT PULL ON WIRES. GRIP | Ð | Ð | 58 | ||
| PLUG ONLY. |
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| When blower control module is completely detached from blower motor, verify with standard ohm- |
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| meter that the resistance from each motor lead in motor plug to unpainted motor end plate is |
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→58. | greater than 100k ohms. Then verify motor windings are not shorted or open by measuring resis- | Ð | Ð | 59 | |
tance between each combination of pins in motor plug (there are three different combinations, pin | |||||
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| pins. |
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→59. | Did the motor pass the resistance check? | 60 | 62 | Ð | |
→60. | Does blower wheel turn freely with blower control module removed? | 61 | 62 | Ð | |
→61. | Replace blower control module. Inspect failed blower control module for water damage. If present, | Ð | Ð | 17 | |
find source of water and fix. Check | |||||
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→62. | Replace entire blower motor including blower control module. Inspect blower control module for wa- | Ð | Ð | 17 | |
ter damage. If present, find source of water and fix. Check | |||||
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39
