|
Thread Number: 57679
/ Tag: Vintage Dishwashers
KDS-18 Intermittent DRAIN Problem |
[Down to Last] |  |
|
Post# 800863 , Reply# 1 12/25/2014 at 18:53 (3,409 days old) by rp2813  (Sannazay) |
||
 It sounds like the rapid advance timer on your machine may be the problem. I think replacement is the only solution, but you should allow some time for the Hobart/KitchenAid experts to chime in.
The parts machine you bought will clean just as well, but lacks some cycle options your Superba offers. Timers are not the same, but if you had to switch out the machines, the door and side panels from the Superba could be removed and used on the Imperial. | ||
|
Post# 800918 , Reply# 2 12/26/2014 at 09:51 (3,409 days old) by combo52 (50 Year Repair Tech Beltsville,Md) |
||
NON DRAINING KDS-18 DW
Most often the when this happens the DW is not draining well at any time and the water builds up a little each time the DW is supposed to drain to the point you sometimes have water left at the end of the complete cycle.
If it is really skipping just the last drain period it is likely a bad timer or intermittent drain solenoid on the drain valve [ try installing the drain valve from the KDI-18 on your DW ] It is fairly unlikely that it is the timer but possible. The best way to figure out what is really happening is to sit through a full cycle and each time the DW goes into a drain period all the water should drain before the drain valve closes and the DW starts filling again. You can attach a test meter or light to the connections for the DV [ leads with insulated alligator clips ] and see if power is getting to the coil on the DV when the DW is supposed to be draining. If you find the the pump-out is weak [ most likely problem ] you may have a restriction in the drain hose, air gap at the sink [ if you have one ] a bad DV or a worn or partly broken drain impeller in the main pump or possibly a piece of broken glass or other foreign object stuck in the drain pump housing area. | ||
| Post# 800930 , Reply# 4 12/26/2014 at 11:53 (3,409 days old) by barcoboy (Canada) | ||
There should actually be two drain periods at the end of the final rinse before the dying cycle starts. The last four 90 second increments of the timer before dry should be, according to the service manual:
RINSE (WITH HEAT) DRAIN DWELL DRAIN (SCAVENGER) The main motor should stop at the DWELL increment for 90 seconds. I believe this increment was to give the dishes a chance to drip off excess water and so that water could collect in the bottom of the sump before one final pump out. The motor should restart during the last drain increment, and then 5 seconds or so later, the drain valve should open. After this final increment, the main motor should stop again, and the drying cycle begin with the blower starting immediately. Also, it is normal for the drain valve to stay open for 60 seconds of each 90 second timer interval, but whenever the valve is open, the main motor should also be running. | ||
| Forum Index: |
| Other Forums: |
|
|
|
|
|
Comes to the Rescue!
;){kind=link}
;){kind=link}