Step | Action | Value(s) | Yes | No | ||||
|---|---|---|---|---|---|---|---|---|
DEFINITION:
| ||||||||
1 | Did you review the HVAC blower operation and perform the necessary inspections? | -- | Go to Step 2 | Go to Symptoms | ||||
2 |
Does the blower motor operate? | -- | Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems | Go to Step 3 | ||||
3 |
Does the test lamp illuminate? | -- | Go to Step 4 | Go to Step 8 | ||||
4 | Connect a J 35616-200 unpowered test lamp between auxiliary blower motor high speed relay connector cavity C2 for CKT 341 (BRN) and ground. Refer to Circuit Testing in Wiring Systems. Does the test lamp illuminate? | -- | Go to Step 5 | Go to Step 9 | ||||
5 |
Is continuity present? | -- | Go to Step 6 | Go to Step 10 | ||||
6 | Connect a J 39200 DMM between auxiliary blower motor high speed relay connector cavity A1 for CKT 1924 (WHT) and ground. Refer to Circuit Testing in Wiring Systems. Is continuity present? | -- | Go to Step 12 | Go to Step 7 | ||||
7 |
Is continuity present? | -- | Go to Step 11 | Go to Step 13 | ||||
8 | Repair the open in CKT 1542 (RED) between splice S412 and the auxiliary blower motor high speed relay connector. Refer to Wiring Repairs in wiring Systems. Did you complete the repair? | -- | Go to Step 14 | -- | ||||
9 | Repair the open in CKT 341 (BRN) between splice S405 and the auxiliary blower motor high speed relay connector. Refer to Wiring Repairs in Wiring Systems. Did you complete the repair? | -- | Go to Step 14 | -- | ||||
10 | Repair the open in CKT 1172 (YEL) between splice 413 and the auxiliary blower motor high speed relay connector. Refer to Wiring Repairs in Wiring Systems. Did you complete the repair? | -- | Go to Step 14 | -- | ||||
11 | Repair the open in CKT 1924 (WHT)/52 (ORN) between the auxiliary blower motor high speed relay connector and the auxiliary blower motor switch connector. Refer to Wiring Repairs in Wiring Systems. Did you complete the repair? | -- | Go to Step 14 | -- | ||||
12 | Replace the auxiliary blower motor high speed relay. Did you complete the repair? | -- | Go to Step 14 | -- | ||||
13 | Replace the auxiliary blower motor switch. Refer to Control Assembly Replacement - Auxiliary . Did you complete the repair? | -- | Go to Step 14 | -- | ||||
14 | Operate the auxiliary blower motor in order to verify the repair. Did you correct the condition? | -- | System OK | Go to Step 3 | ||||
