Troubleshooting - MYERS MC50 Manual Del Usuario

Operation /Troubleshooting
PRIMING/OPERATION
Never run pump dry.
out water may cause it to overheat, damaging the seal and
possibly causing burns to persons handling the pump.
Fill the pump with water before starting..
Never run the pump with the discharge
closed.To do so can boil water inside the pump, causing
hazardous pressure in the unit, risk of explosion, and possi-
bly scalding persons handling the pump.
Congratulations on a successful installation.
If you were unsuccessful, please refer to the
Troubleshooting section (below) or call our customer
service technical staff at +52.899.864.3203

TROUBLESHOOTING

SYMPTOM POSSIBLE CAUSE(S)
Motor will not run Disconnect switch is off.
Fuse is blown or circuit breaker tripped
Wires at motor are loose, disconnected, or
wired incorrectly
Motor runs hot and Voltage is too low
overload kicks off
Pump cycles too frequently
Motor runs but no Pump in new installation did
water is delivered* not pick up prime through:
1. Improper priming
2. Air leaks
* (Note: Stop pump;
then check prime 3. Leaking foot valve or check valve
before looking for Pump has lost prime through:
other causes. 1. Air leaks
Unscrew priming 2. Water level below suction pipe inlet
plug and see if water
is in priming hole).
Foot valve or strainer is plugged
Impeller is plugged
Check valve or foot valve is stuck shut
Pipes are frozen
Foot valve and/or strainer are
buried in sand or mud
Water level is too low for shallow well
setup to deliver water
Pump does not Water level in well is lower than
deliver water to full estimated
capacity
Steel piping (if used) is corroded or limed,
causing excess friction
Piping is too small in size
Pump delivers water but Faucets have been left open
does not shut off or
Standard pressure tank is waterlogged
pump cycles too
and has no air cushion
frequently
Pipes leak
Foot valves leak
Air spurts from faucets Pump is picking up prime
FLeak in suction side of pump
Well is gaseous
Intermittent over-pumping of well (Water
drawn down below foot valve)
Running pump with-
CORRECTIVE ACTION
Be sure switch is on.
Replace fuse or reset circuit breaker.
DISCONNECT POWER; check and tighten all wiring.
Check with power company. Install heavier wiring if wire size is too small.
See section below on too frequent cycling.
In new installation:
1. Re-prime according to instructions.
2. Check all connections on suction line with
shaving cream.
3. Replace foot valve or check valve.
In installation already in use:
1. Check all connections on suction line and well seal.
2. Lower suction line into water and re-prime. If receding water level
in well exceeds 20' (6.1 M), a deep well pump is needed.
Clean foot valve or strainer.
Clean impeller (See Repair Parts page).
Replace check valve or foot valve.
Thaw pipes. Bury pipes below frost line. Heat pit or pump house.
Raise foot valve and/or strainer above bottom of water source.
Clean foot valve and strainer.
A deep well pump may be needed (over 20' (6.1 M) to water)
to deliver water.
A deep well jet will be needed if your well is more than 16' (5M)
depth to water.
Replace with plastic pipe where possible, otherwise with new steel pipe.
Use larger piping.
Close faucets
Drain tank to air volume control port. Check AVC for defects. Check
all connections for air leaks.
Check connections.
Replace foot valve.
When pump has picked up prime, it should pump solid water with no air.
Suction pipe is sucking air. Check joints for leaks with shaving cream.
Consult factory about installing a sleeve in the well.
Lower foot valve if possible, otherwise restrict pump discharge.
Discharge
Pipe
Figure 3 - Prime the Pump.
Vent Through
Priming Plug
Priming
Suction
Tee
Pipe
Foot Valve
5618 0407
11