Troubleshooting
Hose Heat System
Before performi ng any troublesh ooti ng proc edu res:
1. Relieve Pressure. See Pressure Relief Procedure, page 43.
2. Turn main power switch OFF.
3. Allow equipment to cool.
Problem
Cause Solution
Ambient temperature is too cold. Relocate hoses to a warmer area
or recirculate heated fluid through
the hose.
FTS failed or not installed correctly. Check FTS, see Check RTD
Cables and FTS, page 65.
Hose h eat s but h eat s slower
than usual or it does not reach
temperature.
Low supply voltage.
Verify line voltage. Low line
voltage significantly reduces
power available to the hose heat
system, affecting longer hose
lengths.
A and B s
etpoin ts too low.
Increa
seAandBsetpoints.
Hose is
designed to maintain
temper
ature, not to increase it.
Ambient temperature is too cold. Increase A and B setpoints to
increase fluid temperatu re 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.
Hose do
es n ot maintain
temper
ature while spraying.
Low supply voltage.
Ver
ify line voltage. Low line
vol
tage significantly reduces
pow
er available to the hose heat
sys
tem, affecting longer hose
le
ngths.
333024F 37
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