Graco Reactor 2 H-30 Repair Parts page 30

Troubleshooting
Error Location
Error Error Location Location
T4DA Heater A
T4DB Heater B
T4DH Hose
30
Type Description
Type Type Description Description
High Temperature A
High Temperature B
High Temperature
Hose
Cause Solution
Cause Cause Solution Solution
Bad RTD or bad Swap A and B heater output
RTD placement
cables and RTD cables and
against heater see if issue follows. If so,
replace RTD.
Flow too high Use a smaller mix chamber
for temperature that is rated for the unit in
setpoint, causing use.
temperature
overshoots when
gun is de-triggered
Bad RTD or bad Swap A and B heater output
RTD placement cables and RTD cables and
against heater see if issue follows. If so,
replace RTD.
Flow too high Use a smaller mix chamber
for temperature that is rated for the unit in
setpoint, causing use.
temperature
overshoots when
gun is de-triggered
Hose portion Shade exposed hose from
exposed to an hot sun or expose FTS to
excessive heat
same environment when
source, like hot at rest. Uncoil entire hose
sun or coiled
before heating to avoid
hose, can pass self-heating.
fluid more than
27°F (15°C) over
hose temperature
setting to the FTS
Setting the A or Increase hose setpoint
B setpoint much so it is closer to A and B
higher than hose setpoints.
setpoint can cause
fluid more than
27°F (15°C) over
hose temperature
setting to reach the
FTS.
Cold ambient Cold ambient temperature
temperature is is chilling the FTS and
causing hose to causing hose heat to stay
heat 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.
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