AIR CONDITIONER, HORIZONTAL, COMPACT
RELAYS K2 AND K3 INSPECTION, TESTING, AND REPLACEMENT
Refrigeration Unit Service Tool Kit, WP 0000 00, Item
Power Supply, WP 0000 00, Item 6
Remove Junction Box (WP 0036 00)
Check relays for general condition, evidence of overheating, and loose, broken, or missing terminals.
1. Apply 28 VDC to terminals X1 (positive) and X2 (negative ).
2. Check continuity across terminals A1 and A2, B1 and B2, and C1 and C2. The multimeter must show that contacts
3. Remove power. The multimeter must show that contacts are open.
4. Replace the relay if defective.