Concentrate container empty

Replace with full container

Air leak in pick-up tube

Put clamp on tube or replace tube if brittle

Controller connected to pump module via J1 cable?

Is power connected to pump module?

When pumps don't run it is important to differentiate between running on prime and running from a machine trigger. Pumps only run formula amounts from a machine trigger when pumps are calibrated.

When only certain pump positions are defective, check Pump Interface (PI) printed circuit board (PCB) and J1 cable connections.

Only one pump may run at a time in flush mode. Multiple pumps triggered at the same time will run in queue.

Confirm pump motor harness is connected to PI PCB in pumpstand

Follow pumpstand manual troubleshooting procedures for PI PCB defect

Are pumps calibrated?

Is a delay time programmed or is pump in cue?

Quite a number of perceived load count errors may occur in the normal day-to-day operations of a laundry. A load is counted (to the current formula number) each time the highest pump number with a nonzero amount runs. In Relay mode a load is counted each time pump 1 is run.

Check washer trigger signals

Check that machine operator may be short cycling the washer

Check washer trigger signal for count pump running more than once each load

Confirm main power connection voltage with a volt meter. Check fuse if optional fuse kit is installed. Substitute transformer followed by the printed circuit board to determine fault.

NOTE: Confirm that detergent type (screen 27) is set correctly

 

7.4.1 Probe Mode

Check probe for scaling and measure wash solution via titration kit or by other means. If detergent us at proper concentration, troubleshoot the dish machine for clogged drains, excessive fresh water feedback, etc.

 

Rinse feed is locked out under the following conditions:

Probe-less/Door/Automatic Initial Charge modes - Rinse is locked out after Initial Charge begins until the following rack (rinse signal) occurs.

Probe Mode - detergent signal did not occur within 90 seconds prior to rinse signal (Rinse Saver feature).

If not in one of the above conditions and rinse does not feed, substitute pump motor followed by the printed circuit board to determine fault.

 

Is the motor turning?

YES

• check level of drain treatment supply.
• check for air leaks in the supply tubing connection to pump tube stems.
• check for clogs in inlet and outlet tubes.
• insure pump tube is not at all twisted.
• check pump tube. As it wears out, the amount of fluid pumped decreases. Change tube.
  

NO

• ensure programmer is functioning: Try to run pump manually (see page 3 of the instruction manual).
• check program: Be sure both switches are in center position for programmed dispensing.
• check to insure wires from the electronic control to the motor are secure.
• ensure that wire from batteries to electronic control is secure.
• check battery condition. Try new batteries. BE SURE TIMER IS OFF before changing the batteries.
• remove the pump to see if pump is binding the motor (run motor manually -- see page 3 of the instruction manual).
  

 

Is the tubing the proper ID for your application?

NO

• replace tubing with proper size.
  

YES

• check program to insure the required duration.
• ensure programmer is turning on and off at set times.
• remember that fresh batteries will result in a slightly higher than average dispense.
  

 

Press reset. Reprogram timer.