TEST OR INSPECTION
Remove pump house panel S (WP 0540). Disconnect valve control wire harness water
tank drain control valve connector. Turn battery disconnect switch to ON
position (WP 0007). Put pump operator's panel WATER TANK DRAIN switch to OPEN
position (WP 0004). With a test lead set, check for 22 to 28 VDC between valve control
wire harness wire 4053 (brown) at water tank drain control valve connector, terminal 1
and a known good ground.
If 22 to 28 VDC are not present, troubleshoot Water Tank Drain Valve Does
Not Operate When Selected (WP 0122).