Graco Reactor A-25 User Manual

Troubleshooting
3A1570V 23
Hose Heat System
PROBLEM CAUSE SOLUTION
Hose heats but heats slower than usual
or it does not reach temperature.
Ambient temperature is too cold. Use auxiliary hose heat system.
FTS failed or not installed correctly. Check FTS. See E04: Fluid
Temperature Sensor (FTS) or
thermocouple disconnected, page 13.
Low supply voltage. Verify line voltage. Low line voltage
significantly reduces power available to
hose heat system, affecting longer hose
lengths.
Hose does not maintain temperature
while spraying.
A and B setpoints too low. Increase A and B setpoints. Hose is
designed to maintain temperature, not to
increase it.
Ambient temperature is too cold. Increase A and B setpoints to increase
fluid temperature and keep it steady.
Flow too high. Use smaller mix chamber. Decrease
pressure.
Hose was not fully preheated. Wait for hose to heat to correct
temperature before spraying.
Low supply voltage. Verify line voltage. Low line voltage
significantly reduces power available to
hose heat system, affecting longer hose
lengths.
Hose temperature exceeds setpoint. A and/or B heaters are overheating
material.
Check primary heaters for either a
thermocouple problem or a failed element
attached to thermocouple, page 13.
Faulty thermocouple connections. Verify that all FTS connections are snug
and that pins of connectors are clean.
Examine connection of thermocouples to
long green plug on heater control board.
Unplug and re-plug thermocouple wires,
cleaning off any debris. Unplug and
re-plug long green connector on heater
control board.
Missing/damaged insulation around FTS,
causing the hose heat to be ON
constantly.
Make sure bundle has adequate
insulation evenly covering the entire
length and connection joints.
Erratic hose temperature. Faulty thermocouple connections. Verify that all FTS connections are snug
and that pins of connectors are clean.
Examine connection of thermocouples to
long green plug on heater control board.
Unplug and re-plug thermocouple wires,
cleaning off any debris. Unplug and
re-plug long green connector.
FTS not installed correctly. FTS should be installed close to end of
hose in same environment as gun. Verify
FTS installation, page 35.
Missing/damaged insulation around FTS,
causing the hose heat to be ON
constantly.
Make sure bundle has adequate
insulation evenly covering the entire
length and connection joints.

Graco Reactor A-25 Specifications

General

Brand	Graco
Model	Reactor A-25
Category	Paint Sprayer
Language	English