TEST PROCEDURES - MARKET FORGE #08-6328 (120V)
MARKET FORGE #08-6329 (240V)
The following is a troubleshooting guide designed to find out if the Dual Function Control is working properly. It
is not designed to find out why the control has failed.
The Series Dual Function control is two controls in one, one half being the feed water control, the other half the
low level cutoff portion.
Tools Needed: A digital or analog V-O-M (volt-Ohm-milliamp meter) and a set of test jumpers (alligator type).
1)
Turn off power to the control.
2)
Remove the wires #-100, #101, #102 from the probe connections "H, "LLCO" and "G".
3)
Remove the wires from the contact connections "COM", #104 and "N.O." from both relays. CAUTION:
Internal Jumper from "L1" to "COM" will be hot when power is reapplied. Temporarily tape free end.
4)
Using the Ohm meter, check to see if the normally opened contact is open and the normally closed contact is
closed.
5)
Turn power on to control. Check with the voltmeter to see if the voltage being applied to "L1" & "L2" is 120
VAC (+10% -15%), or 240 VAC if so equipped.
6)
When power is turned on, the LED on the side away from the transformer should light and the relay next to
the LED should be energized. Checking with the Ohm meter, the normally open contact should be closed and
the normally closed contact should be open. Bringing power to the control should not change the side of the
control that contains the transformer.
7)
Place a test jumper wire from either "G" terminal to the "H" terminal. After a 10 second (+/-2) time delay, the
LED will go out and the relay next to this LED should deenergize returning the contacts to their original state,
(Normally open should be open, Normally closed should be closed)
8)
Removing the test jumper from "G" and "H" should relight the LED and energize the relay.
9)
Place a test jumper wire from either "G" terminal to the "LLCO" terminal. The LED next to the transformer
should light and the relay next to the transformer should energize. Checking with the Ohm meter, the normally
open contact should be closed and the normally closed contact should be open.
10)
Remove the test jumper from "G" and "LLCO". The LED should remain lit for about 3 seconds (+/-) before
going out. The relay should deenergize at this time. The contacts should return to their original state.
11)
If the above test shows that the control is operating properly, check all probe and solenoid wiring and the
condition of the electrodes (clean insulator) in the steam chamber. Check the conductivity of the liquid to make
sure it is below 4.7K ohms/cm.
12)
If after replacing all wires, the system still does not operate properly, contact the factory.