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4 - Troubleshooting
4.3 - Heater Troubleshooting
Heater is not heating water.
Possible Causes
Solutions
Loose electrical
connection.
Check all electrical connec-
tions, including power cord
and harness.
Automatic sensor has
failed, causing manual
sensor to trip.
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.
Heater element has failed.
Check for continuity
through the element by
reading the amperage. If
amps are low, only part of
the element may be heating
up – in this case, the
element is damaged and
needs to be replaced.
Bad power switch.
If the element, sensors, and
wiring all check out okay,
there may be a bad switch
on the switch-plate.
Running out of hot water too fast.
Possible Causes
Solutions
Too much water flowing
through the heater.
Remember, when using
your machine, it is rec-
ommended you do one
wet pass followed by two
dry passes. This way you
are not spraying as much
and the hot water will last
longer.
Jets being used are too
large.
If your machine has a
1,000W or 1,200W heating
system, make sure your
cleaning tool has 0.02 jets.
Water in tank is very cold.
If possible, fill your solution
tank with warm water
in order to shorten the
amount of time it takes for
the water to heat up. The
pumps are usually rated for
140°F water.
Heater has hard water
buildup inside, leading to
lost efficiency.
Run Mytee System
Maintainer™ (Part # 3601)
through the machine
regularly in order to clear
hard water or chemical
residue that can block
water flow and reduce
heating ability. See product
label for instructions.
Unit has vapor locked and there is no water pumping
out of the unit.
Possible Cause
Solution
Turning on the heater
before turning on the pump
and priming the unit.
Turn off the heater and
allow the unit to cool com-
pletely. When machine has
cooled, turn on the pump
first. Prime the unit by
spraying solution out of the
cleaning tool. Then, turn on
the heater.