Mytee Lite 8070 User Manual page 18

5 - TROUBLESHOOTING
Pump doesn't stop running.
Possible Causes
Leak somewhere in the
line.
Cracks or vacuum leaks on
inlet side of pump.
Seals have been degraded
by chemical.
Debris blocking inlet filter
or pump head.
Pump trips circuit breaker when turned on.
Possible Causes
Short in power switch.
Short in electrical harness.
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Solutions
Disconnect the solution
hose from the machine. If
this causes the pump to
stop running then the prob-
lem is outside the machine,
either in the solution hose
or tool. If it continues run-
ning on, open the machine
and check for leaks. Repair
the leak. If there are no
leaks, run Mytee's System
Maintainer™ (Part # 3601)
through the machine to
clear blockages.
Make sure hoses are
secured tightly. If the inlet
side of the pump is cracked
or damaged, replace the
pump.
Install seal repair kit.
Clean filter and/or pump
head.
Solutions
Test by swapping vacuum
and pump switch. If prob-
lem resolves, but vacuum
begins tripping breaker, re-
place switch (Part #E515).
Risk of electric shock. Do
this at your own risk.
Remove pump from circuit
by attaching power leads
together. If breaker still
pops when switch is tog-
gled, then there is a short
to the ground in the circuit.
Replace wires as needed.
Short in pump motor.
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5.3 - Heater Troubleshooting
Heater is not heating water.
Possible Causes
Loose electrical connec-
tion.
Automatic sensor has
failed, causing manual
sensor to trip.
Heater element has failed.
Bad power switch.
18
If switch and harness
check is OK, the short
may be in the pump motor.
Replace pump.
Solutions
Check all electrical con-
nections, including power
cord and harness.
Reset the manual sensor
button by pressing the
small white and yellow
button in the center of the
sensor. If this works, but
heater continues to trip the
manual sensor, replace
the automatic sensor (Part
#E573) on the heater.
Check for continuity
through the element by
reading the amperage. If
amps are low, only part of
the element may be heat-
ing up – in this case, the
element is damaged and
needs to be replaced.
If the element, sensors,
and wiring all check out
okay, there may be a bad
switch on the switch-plate.