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INSTALLATION AND OPERATION MANUAL
Intelligent Tones
Your nextec pump features a self‑diagnostic system that will aid you in troubleshooting should the need arise. The pump will emit a series of tones; note the order and number
of high and low pitched tones to determine the fault condition.
Depending on the condition the pump senses, it will generate either a
3-tone code
, or a
4-tone code
:
•
3-Tone codes
indicate an application fault; something dealing with the installation of the pump, like a priming or supply voltage concern.
•
4-Tone codes
indicate a pump fault; a condition outside the operating parameters of the pump, like an over‑temperature condition, or something dealing with
the pumps internal electronics.
Refer to the table below to determine which condition your pump is detecting, and how to resolve it. In the chart below, arrows pointing up (
↑
) indicate high tones,
arrows pointing down (
↓
) indicate low tones. Conditions listed in
BOLD
are not field serviceable, and require the pump to be returned to the manufacturer.
3-Tone Faults
(Application / Installation faults)
Tones
Condition
Solution
↑ ↓ ↓
Low input voltage (auto shut‑off)
Check input wiring gauge, length, and connections
↑ ↓ ↑
High input voltage (auto‑shut off)
Check incoming voltage
↓ ↑ ↑
Locked rotor (auto shut‑off)
Turn switch off and inspect rotor and vanes*
↓ ↑ ↓
Priming / Suction / Lift failure
Check for leaks in suction tube, inlet connections, inside tank plumbing restrictions, excessive vertical suction lift,
empty tank
4-Tone Faults
(Hardware faults)
Tones
Condition
Solution
↓ ↑ ↑ ↑
Hardware fault (auto shut-off)
Troubleshoot as described below**
↓ ↑ ↓ ↓
Hardware overtemperature (auto‑shut off)
Turn switch off and allow pump to cool*
↓ ↓ ↑ ↑
Motor overtemperature (auto shut‑off)
Turn switch off and allow pump to cool*
↓ ↓ ↑ ↓
Motor overvoltage (auto shut-off)
Troubleshoot as described below**
↓ ↓ ↓ ↑
Motor undervoltage(auto shut-off)
Troubleshoot as described below**
*This condition will shut the motor off. To restart the motor, cycle the switch off, then back on, or cycle power to motor.
** Prior to returning pump to place of purchase, perform this procedure: cycle the switch off and disconnect power for at least one minute. Reconnect power, and cycle the
switch back on. Verify proper pump operation. If this procedure does not restart the pump, or if you have additional questions, contact Customer Service at 1-800-634-2695.
Tuthill Corporation
8825 Aviation Drive
Fort Wayne, Indiana 46809 USA
P
(800) 634‑2695
(+01) 260‑747‑7524
F
(800) 866‑4681
Tuthill UK LTD.
Birkdale Close Manners Industrial Estate
Ilkeston, Derbyshire
DE7 8YA UK
P
+44 0 115 932 5226
F
+44 0 115 932 4816
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