VR1 datasheet(4/8 Pages) PENTAIR

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11.Put pump upright and refill motor with Myers

submersible pump oil.

DO NOT OVERFILL WITH

OIL. Replace oil plug. Retighten plug firmly, but do

not overtighten.

12.Be sure pump turns freely before connecting

power. Turn pump on side and turn impeller,

using screwdriver in slotted shaft. Plug pump

into receptacle to test operation. Pump must run

quietly and free of vibration.

WIRING DIAGRAM – MARATHON®

START

CAPACITOR

RUN

CAPACITOR

Pump does not run or hum.

See A, B, C, D, E or F.

Pump runs but does not

deliver water.

See G, H, I, J, K or L.

Pump runs and pumps out sump

but does not stop.

See M.

Pump runs but delivers only

small amount of water.

See I, J, K, L or N.

Fuse blows or circuit breaker

trips when pump starts.

See K, L, N, O or P.

Motor runs for short time

then stops. Then after short

period starts again. Indicates

tripping overload caused by

symptom shown.

See K, L, N or P.

For any other symptoms

contact a Myers authorized

service facility.

A. Line circuit breaker may be off;

or fuse, if used, may be blown

or loose.

B. Water level in sump may be too

low. Run in more water.

C. Pump cord plug may not be

making contact in receptacle.

D. If pump is using the series cord

plug, the two plugs may not be

plugged tightly together.

E. Float may be stuck. Be sure

float operates freely in basin.

Check tether length of switch.

F. If all symptoms check OK,

motor winding may be open;

take to service center for repair.

G. Check valve may be installed

backward. Arrow on valve

points in direction of flow.

H. Discharge shut-off valve, if

used, may be closed.

I. Pump may be air locked. Start

and stop several times by

plugging and unplugging cord.

Check vent hole on pump case

for plugging.

J. Pump head may be too high.

Horizontal distance does not

affect pumping, except loss

due to friction.

K. Inlet holes in pump base may

be clogged. Remove pump and

clean out openings.

L. Impeller or volute openings may

be plugged or partially plugged.

Remove pump and clean.

Check tether length of switch.

M. Float is stuck in up position.

Be sure float operates freely

in basin.

N. Pump impeller may be

partially clogged causing

motor to run slow, resulting in

motor overload.

O. Fuse size or circuit breaker is

too small. Must be 20 amps.

P. Defective motor stator. Return

to Myers service center.

TROUBLESHOOTING GUIDE

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