SeaLand 3400 Series All-Ceramic Toilets - Manual (Page 16)

6
TRoubLeShooTING (cont’d)
SyMPToM 3. flush valve will not close.
Condition/Procedure
Mode Switch is in SERVICE
position:
Foreign object prevents the flush
valve from closing and the safety
circuit locked flush valve in open
position:
Check the voltage output to
the flush valve motor at
pins 9 and 0 on the control
module as follows:
Corrective Action
• Return switch to the “Normal” position.
• Reset the control circuit by putting the Mode Switch in the SERVICE
position temporarily, then returning to the NORMAL position. If the
flush valve did not close, go to next step.
• Pull the control module out as far as the control cables will allow.
• Disconnect either the orange or green wire from the Closed Limit
Switch.
• With DC voltmeter test leads across pins 9 and 10, flip the Mode
Switch between the SERVICE and NORMAL positions. If voltage is
present for about two seconds in the NORMAL position, the flush
valve motor or related wiring is defective.
• If voltage is not present, replace the control module.
SYMPTOM 4. Water will not enter toilet bowl during a flush and when the flush handle is raised
or the flush switch is pushed to “Add Water”.
Procedure
Check the “WATER VALVE”
status light while pushing the
"Flush" switch on the control
panel:
Corrective Action
• If the “WATER VALVE” status light comes on, the water valve filter
screen may be plugged with debris, or the water valve or its related
wiring is defective.
• If the “WATER VALVE” status light remains off, replace the control
module.
• If voltage is not present, replace the control module.
SYMPTOM 5. Flush valve will not open when Mode Switch is in the “Service” position but opens
during a normal flush cycle.
Corrective Action
• Replace control module.