c)Pump-Out Timer (S4 dip switch 3 & 4)
When a pump-out is called for, the pump motor de-energizes after the preceding freeze cycle. The pump motor energizes 2 seconds later in the reverse direction, taking water from the bottom of the tank and forcing pressure against the check valve seat allowing water to go through the check valve and down the drain. At the same time, water flows through the small tube to power flush the float switch. The pump motor drains the water tank for the time determined by the pump-out timer. The pump‑out timer also acts in place of the harvest timer during cycles with a pump-out. The pump-out timer is factory set, and generally no adjustment is required. However, where water quality is bad and the icemaker needs a longer pump-out time, the pump-out timer can be adjusted. The pump‑out timer control can be set to pump-out for 10 or 20 seconds.
| S4 Dip Switch Setting | Time (seconds) | Inlet |
| Water |
| | | | |
| | | | |
| No. 3 | No. 4 | T1 | T2 | Valve |
| OFF | OFF | 10 | 150 | Closed |
| | | | | |
| ON | OFF | 10 | 180 | Closed |
| | | | | |
| OFF | ON | 10 | 120 | Open |
| | | | | |
| ON | ON | 20 | 180 | Closed |
T1: Time to drain the water tank
T2: Harvest timer at pump-out
d)Pump-Out Frequency Control (S4 dip switch 5 & 6)
The pump-out frequency control is factory set to drain the water tank every 10 cycles, and generally no adjustment is required. However, where water quality is bad and the icemaker needs a pump-out more often, the pump-out frequency can be adjusted. The pump-out frequency control can be set to have a pump-out occur every cycle, or every 2, 5, or 10 cycles.
Timing of the first pump-out is dependent on the control board. "E" control board first pump‑out is after the first freeze cycle. "G" control board first pump-out is dependent on S4 dip switch 5 & 6. See the table below.
| "E" & "G" Control Board Settings | 1st Pump-Out |
| S4 Dip Switch Setting | Pump-Out | "E" Control Board | "G" Control Board |
| No. 5 | No. 6 | Frequency |
| | |
| | | | | |
| OFF | OFF | Every cycle | After 1st freeze cycle | After 2nd freeze cycle |
| | | | | |
| ON | OFF | Every 2 cycles | | After 3rd freeze cycle |
| OFF | ON | Every 5 cycles | | After 6th freeze cycle |
| | | | | |
| ON | ON | Every 10 cycles | | After 11th freeze cycle |
| | | | | |
