Ecolab POSITRONIC IV User Manual

9
7.0 TROUBLESHOOTING
Problem Cause or Failure Mode
WARNING - Wear safety goggles, rubber gloves and other required protective clothing when removing the pump
from its circuit. Proceed with caution when disconnecting the discharge line because it may be pressurized. When
disconnecting a discharge line fitting, place a rag over the fitting to shield yourself from any possible spray.
Action
1. Pump will not run Air line blocked
Pump directional valve in neutral
position
No electrical power to the unit
Low air pressure
Check air line for passage of air.
Press white plastic reset button on the
pump below air supply port
Take corrective action (fuses, timer,
solenoid coil, etc,)
Check plant air supply.
2. Pump will not prime Liquid intake tube is blocked
No air to the pump
Intake line fittings not tight
Take corrective action
Take corrective action
Take corrective action
3. Pulsating Flow Some pulsating flow is normal
Clogged check valve, intake or dis-
charge
Air in the intake line
None Required
Disassemble
per Section 9, page 10 .
Clean check valves, then reassemble.
Clean product tank and intake line.
Check product reservoir for being
empty, check intake line for cracks and
loose fittings, check vertical studs
(Fig
14, page 10)
for tightness.
4. Low Flow Rate Discharge line blocked
Liquid intake tube is blocked
Debris caught in pump valves
Check the check valve or anti-siphon
valve
Take corrective action
Remove pump manifolds to clean
valves.
Refer to Section 9, page 10
5. Discharge Line Drains Anti-siphon valve leaks
Anti-siphon valve not properly installed
Replace valve
See Section 4, paragraph 4.4, page 6
6. Intake Line Drains Foot valve leaks Disassemble, clean, and reassemble

Ecolab POSITRONIC IV Specifications

General

Brand	Ecolab
Model	POSITRONIC IV
Category	Controller
Language	English