19
Code Condition
Potential
Causes
Proposed Action
SC
Short circuit
Incorrect
horsepower
setting
Short in
connections from
EcoVFC to PMA
SW3 Pole 6 set
incorrectly for
pump connected
1. Push reset button on the EcoVFC.
2. If condition is corrected, check for proper operation of system;
if operating correctly, do not continue to next step. If fault is still
present continue to next step.
3. Check SW3 Pole 6 setting and verify that it matches the
horsepower of the pump connected. Connecting VS4 motor with
a SW3 Pole 6 OFF (2hp) setting may cause this false indication.
EcoVFC/PMA Connections
1. Disconnect power at load center, lock and tag circuit breakers.
2. Remove the three motor control outputs from the EcoVFC unit.
3. Using an ohmmeter on 200 setting, place leads across any
two of the three wires from the pump motor. Correct reading
between any two of the three wires should be 1.2 + / -1 ohms for
a VS4 and 2.5 + / -1 ohms for a VS2.
4. Continue conductivity tests between each of the three motor
control wires and ground. If readings are greater than 80k Ω
proceed to Step 8. If readings are less than 80k Ω the possibility
of a short circuit in the connections from the EcoVFC to PMA
exists.
5. Go to the submerged turbine and remove the cover at the top of
the extractable; remove the three wire nuts.
6. Place an ohmmeter between the three wires leading to
the pump motor as above. If wires are shorted go to PMA
replacement in 3 ashes section; if readings are correct there is
problem with the wiring between the EcoVFC and this point.
7. Remove the junction box cover and do conductivity test on
wires from junction box to extractable discharge head. If wires
are shorted to ground or each other, replace the male and
female connectors of the submerged turbine. If there is no
problem with these connections the wires from the EcoVFC to
the submerged turbine are suspect. Contact an electrician to
diagnose and correct the problem.
8. After the problem has been corrected turn on power to the
EcoVFC and verify system is operating correctly. Contact
FE Petro Technical Support for additional troubleshooting
assistance.
HO
High
temperature
Excessive
operating
temperature in
EcoVFC
1. Verify that fan is running properly. If not, replace Fan.
2. Check excessive heat in area where control box is mounted.
3. Verify all louvers for ventilation are free from obstruction.
Remove obstruction and cycle power to reset EcoVFC.
4. If neither of these conditions exist, replace EcoVFC unit.
Lr
Locked rotor
fault with
PMA running
Foreign material in
PMA or defective
PMA
1. Push reset button on the EcoVFC.
2. If condition is corrected, check for proper operation of system; if
operating correctly, do not continue to next step. If condition is
still present continue to next step.
PMA Inspection
3. Disconnect input voltage at load center, lock and tag circuit
breakers.
4. Remove two 9/16" bolts from extractable portion of the manifold.
Disengage the 3/4" securing bolt of the electrical connector and
swing out of the way.
(Continued next page)
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