Graco Reactor 2 Repair Parts page 32

Troubleshooting
Error Location
Error Error Location Location
T4EA Heater A
T4EB Heater B
32
Type Description
Type Type Description Description
High Temperature
Switch A
High Temperature
Switch B
Cause Cause Cause Solution
Solution Solution
Cold ambient Cold ambient
temperature is temperature is chilling
causing hose to the FTS and causing hose
heat heat to stay on longer
than needed. Insulate
the FTS area of the hose
so that it heats at the
same rate as the rest of
the hose.
Overtemperature
Heater was delivered too
switch sensed a
much power, causing the
fluid temperature
overtemperature switch
above 230°F
to open.
(110°C) reading properly. After
the heater cools down,
replace RTD. Switch
closes and the error can
be cleared when the
heater temperature falls
below 190°F (87°C).
Disconnected If heater is not actually
or loose over temperature,
overtemperature check all wiring and
switch connections between
cable/connection the TCM and the
overtemperature
switches.
Overtemperature
Replace the overtemper-
switch failed in
ature switch.
the open position
Overtemperature
Heater was delivered too
switch sensed a
much power, causing the
fluid temperature
overtemperature switch
above 230°F
to open.
(110°C)
reading properly. After
the heater cools down,
replace RTD. Switch
closes and the error can
be cleared when the
heater temperature falls
below 190°F (87°C).
Disconnected
If heater is not actually
or loose
over temperature,
overtemperature
check all wiring and
switch
connections between
cable/connection the TCM and the
overtemperature
switches.
Overtemperature Replace the overtemper-
switch failed in ature switch.
the open position
RTD is not
RTD is not
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