3-3. TROUBLESHOOTING - continued.
TEST OR INSPECTION
Refer to figure 3-2.
2. Drain valve handle does not rotate.
Attempt to drain water from sump at elbow (1) by opening drain valve (2). If no flow results:
Step 1. Check position of defrost door (3). Adjust door to increase heating of sump and water drain. Refer to
Step 2. Attempt to turn drain valve handle (4) to the OPEN position.
Step 3. If handle (4) does not rotate, notify unit maintenance.
Figure 3-2. Malfunction 2 Drain Valve Handle