Graco Reactor 2 Repair Parts page 46

Hydraulic proportioning systems
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Troubleshooting
Problem
Problem
Problem
Hoses near Reactor
are warm, but hoses
downstream are cold.
Low hose heat.
46
Cause
Cause
Cause
Shorted connection or failed hose
heating element.
A and B temperature setpoints too
low.
Hose temperature setpoint too low.
Flow too high.
Low current; FTS not installed.
Hose heat zone not turned on long
enough to reach setpoint.
Loose hose electrical connections.
Ambient temperature is to low
If Hose Resistance Mode is enabled,
the calibration factor may be
inaccurate.
Solution
Solution
Solution
With power off, check the hose
resistance with and without the
whip hose attached. With the whip
hose attached, the reading should
be less than 3 ohm. Without the
whip hose attached, the reading
should be OL (open loop). See
Check Hose Wires, page
Increase A and B setpoints. Hose
designed to maintain temperature,
not increase temperature.
Check. Increase if necessary to
maintain heat.
Use smaller mix chamber. Decrease
pressure.
Install FTS, see operation manual.
Allow hose to heat up, or preheat
fluid.
Check connections. Repair as
necessary.
Relocate hoses to a warmer area or
increase A and B setpoints.
Re-calibrate the hose. Follow the
Calibration Procedure, page
65.
68.
334946J

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