Wallace Pumps MULTISAN PRO - Page 14

G:\INSTRUCT\MULTISAN PRO\Multisan Pro Instructions 251119.docx Page 14
1
0.
Liquid leaks from
the unit.
-Loose pipework connection.
-Faulty liquid level switch.
-Mechanical seal fault (leakage between
motor and pump).
-Leakage from the seal gasket between the
pump and the tank.
-If unit is of 15 years plus corrosion of pump
volute may occur. If unit is on brackish
water this corrosion can be accelerated.
-Tighten the pipework connections.
-Check and replace if required.
-Check and replace if necessary.
-Check the condition of the seal. Replace if
necessary. If necessary, run a small bead of
neutral cure silicone sealant rated at 100
degrees Celsius on both sides of the gasket.
-Check and tighten the 6 nuts to the tank.
-Check there is adequate pressure on the
seal. Do NOT over tighten.
-Replace pump/motor with new from Wallace
Pumps.
1
1.
Waste water builds
up in the shower
tray.
-Air lock because connection is made into
the small raised tank chamber under the
cover.
-Power is off.
-Overload trip.
-Inflows exceeding pump capacity.
-Blockage in the pipework.
-Shower pipe also has other pipes
connected to it.
-Pump malfunctioning.
-Overflow pipe (if applicable) is blocked.
-Shower tray height is too low.
-Reconnect the pipe into the walls of the
collection tank at other end.
-Check power supply and fuse.
-Lift cover and press Reset button. If unsure or
if the motor trips again, call a service agent.
-Check system against pump operating
parameters. Refer Section 5 (Building
Design). Temporarily, turn off discharging
appliance.
-Find and remove blockage.
-Separate the shower waste pipe.
-Refer above faults and rectify.
-Unblock the overflow pipe.
-To ensure safe operation of shower the tray
should be 180 mm above the base level of the
Multisan.
1
2. Motor hums/buzzes
but does not appear
to run.
-Foreign body blocking the impeller.
-Electrical fault.
-Faulty liquid level switch.
-Remove obstruction from the pump. Check
freedom of operation as per fault 1 above.
-If there is no obstruction and the rotor turns
freely, then the motor is possibly faulty. Refer
to a service agent.
-Check the level switch.