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INSTALLATION AND OPERATION MANUAL
Tones
Condition
Cure
↑
↓
↓
Low battery voltage (auto shut-off)
Charge or replace battery*
↑
↓
↑
High battery voltage (auto-shut off)
Connect to 12 to 24 VDC power source*
↓
↑
↑
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
Intelligent Tones
Your NX25-DDC pump features a self-diagnostic system that will aid you in troubleshooting should the need arise. The pump will give off a series of high and low tones;
simply count the high and low tones to determine which conditions exist.
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; their order tells which fault is detected. Conditions listed in
BOLD
are not field servicable, and require the pump to be returned to the
manufacturer.
3-Tone Faults
(Application / Installation faults)
4-Tone Faults
(Hardware faults)
Tones
Condition
Cure
↓
↑
↑
↑
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.
** 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.
This Troubleshooting guide provides basic diagnostic assistance. If you have further questions, contact us at 1-800-634-2695 (M-F 8 AM–5 PM ET), or on the web at
“www.fillrite.com”.
Troubleshooting
DANGER!
Disconnect all power prior to performing any service or maintenance. Failure to disconnect the power may cause electrical shock, or unexpected starting of the
motor, resulting in injury or death.
DANGER! DO NOT
open or attempt to repair the motor on your Tuthill pump. Return it to the place of purchase for service. Opening the motor case will compromise the
integrity of the Explosion Proof construction and void any existing warranty, approvals, and certifications (i.e.: ATEX, UL listing, CE, etc.).