Operating instructions

63
Operation
Operation:
Troubleshooting guide
Troubleshooting guide.
Problem
number
Problem Possible cause Action
27 Fill valve does not
close.
 Open drain valve
 Malfunctioning level
control system
 If automatic drain valve is locked in
manual open position, reset to
automatic.
 Replace valve if there is a broken
return spring on the drain valve.
 Clean or replace drain valve if an
obstruction in the valve will not allow
complete closure.
 Close manual drain valve, if it is open.
 If VAPOR-LOGIC
®
3
shorted output to
fill valve coil, replace board.
 Check if probe head is fully plugged
in.
 If needed, clean probe rod tips.
 Verify if VAPOR-LOGIC
3
control
board with nylon mounting standoffs
terminal 33 needs to be grounded.
 If there is low water conductivity, add
salt to tank water. (If this solves the
problem, consult DRI-STEEM for
further advice.)
 Replace board if VAPOR-LOGIC
3
control board is defective.
 Verify that system is in auto mode.
 Verify that probe is wired correctly.
 Check terminals 30, 31, 32 and 33 on
VAPOR-LOGIC
3
control board
terminal block J8 for correct voltage:
 32 (purple) to 33 (yellow),
no water present > 2 VAC
 32 (purple) to 33 (yellow),
water present < 1/4 VAC
 31 (orange) to 33 (yellow),
same readings as above
 30 (brown) to 33 (yellow),
same readings as above
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