Graco Reactor 2 H-30 Repair Parts page 31

Error Location
Error Error Location Location
T4EA Heater A
T4EB Heater B
T6DA Heater A
T6DB Heater B
334946H
Type Description
Type Type Description Description
High Temperature
Switch A
High Temperature
Switch B
Sensor Error A
Sensor Error B
Cause Solution
Cause Cause Solution Solution
Overtemperature Heater was delivered too
much power, causing the
switch sensed a
fluid temperature overtemperature switch to
open. RTD is not reading
above 230°F
(110°C) 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, check
overtemperature all wiring and connections
switch between the TCM and the
cable/connection overtemperature switches.
Overtemperature Replace the overtempera-
switch failed in the ture switch.
open position
Overtemperature Heater was delivered too
switch sensed a much power, causing the
fluid temperature overtemperature switch to
above 230°F open. RTD is not reading
(110°C) 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, check
overtemperature all wiring and connections
switch between the TCM and the
cable/connection overtemperature switches.
Replace the overtempera-
Overtemperature
switch failed in the ture switch.
open position
Disconnected or Check all wiring and
loose RTD cable or connections to the RTD.
connection
Bad RTD Switch the RTD with
another and see if the error
message follows the RTD.
Replace RTD if the error
follows the RTD.
Disconnected or Check all wiring and
loose RTD cable or
connections to the RTD.
connection
Bad RTD Switch the RTD with
another and see if the error
message follows the RTD.
Replace RTD if the error
follows the RTD.
Troubleshooting
31