Moyer Diebel 501HT - Manual (Page 78)

68
Timer Board Diagnostic Testing
Press and release the scrub/Ext Wash switch if equipped
If the green indicator light for the scrub switch flashes, the
scrub/ext wash switch works
START SCRUB
POWER
PR
4
before testing, turn the power switch OFF and allow the machine to complete the
drain cycle.
check incoming voltages
1
Open the door
If the green cycle indicator light blinks, the dOOr sWItch and cyclE lIght work
Note: this function times out after 10 seconds
close the door
2
indicator light
POWER
SC PRIME START
Press and release the start sWItch
If the green cycle indicator light flashes the start switch works
3
indicator light
If one or more components do not run, see below
POWER
SC PRIME START
PrEss start
3 tImEs
5
fill valve •
detergent pump •
rinse-aid pump •
drain valve opens •
drain valve closes •
wash pump •
drain pump or sanitizer pump (if applicable) •
to test the timer board and the following components, press
and release the start switch 3 times with the door closed
If the components listed below are operating properly, they
should run consecutively for a few seconds each
cONdItION POssIblE causE/sOlutION
One of the components in step 5 does not run check the component that did not run
the wash pump is the only component that runs check the 4 amp fuse on the timer board
the wash pump is the only component that will
not run and the 4 amp fuse is good
check pump motor/see troubleshooting guide
None of the components run in step 5 check neutral wire/see troubleshooting guide
diagnostic testing for p/n 0712105 solid state timer board
- effective serial # W081217467 and up
0512979