Hydrotech MP Series PULSAtron - Manual (Page 25)

TROUBLESHOOTING
PROBLEM PROBABLE CAUSE REMEDY
1. Pump setting too low 1. Adjust to higher setting (pump must be operating during
the stroke length adjustment).
LOSS OF 2. Scale at injection point 2. Clean injection parts with 8% muriatic acid or undiluted
CHEMICAL vinegar. Also, see Maintenance Section).
RESIDUAL
3. Solution container allowed 3. Refill the tank with solution and prime. (See Start-Up
to run dry and Operation Section).
1. Pump setting too high 1. Lower pump setting (pump must be operating to adjust
stroke length knob).
TOO MUCH
2. Chemical in solution tank 2. Dilute chemical solution. NOTE: For chemical that
CHEMICAL
too rich reacts with water, it may be necessary to purchase a
more dilute grade of chemical direct from chemical
supplier.
3. Siphoning of chemical into 3. Test for suction or vacuum at the injection point. If
well or main line suction exists, install an anti-siphon valve.
1. Worn tube ends 1. Cut off end of tubing (about 1") and then replace as
LEAKAGE
before.
AT TUBING
CONNECTIONS
2. Chemical attack 2. Consult your seller for alternate material.
1. Leak in suction side of pump 1. Examine suction tubing. If worn at the end, cut
approximately an inch off and replace.
2. Valve seats not sealing 2. Clean valve seats if dirty or replace with alternate
material if deterioration is noted.
3. Low setting on pump 3. When pumping against pressure, the dial should be set
above 20% capacity for a reliable feed rate.
FAILURE 4. Low solution level 4. Solution must be above foot valve.
TO PUMP
5. Diaphragm ruptured 5. Replace diaphragm as shown in the “Maintenance
Section.” Check for pressure above rated maximum at
the injection point. NOTE: Chemical incompatibility with
diaphragm material can cause diaphragm rupture and
leakage around the pump head.
6. Pumphead cracked or broken 6. Replace pump head as shown in “Maintenance Section.”
Make sure fittings are hand tight only. Using pliers
and wrench can crack pump head. Also, chemical
incompatibility can cause cracking and subsequent
leakage.
7. Pumphead contains air or 7. Bleed pump head, see “Air Bleed Operation.”
chlorine gas
8. Breakdown or disconnection 8. Connect wiring properly. Check fuse or circuit breaker.
of wiring
9. Voltage drop 9. Take measures after investigation of cause.
10. Malfunction of electronic 10. Contact supplier.
control board
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