Troubleshooting
3A1570L 19
Erratic display; display turns on and
off.
Low voltage. Ensure input voltage is within specifi-
cations, page 37.
Poor display connection. Check cable connections, page 37.
Replace damaged cable.
Display cable damaged or corroded. Clean connections; replace cable if is
damaged.
Display cable not grounded. Ground cable, page 38.
Display extension cable too long. Must not exceed 100 ft (30.5 m)
Hose display reads OA at startup. FTS disconnected or not installed. Verify proper installation of FTS (see
Operation manual), or adjust FTS to
desired current setting.
Display does not respond properly to
button pushes.
Poor display connection. Check cable connections, page 37.
Replace damaged cable.
Display cable damaged or corroded. Clean connections; replace cable if is
damaged.
Ribbon cable on display circuit board
disconnected or broken.
Connect cable (page 37) or replace.
Broken display button. Replace, page 37.
No hose heat. Loose hose electrical connections. Check connections. Repair as neces-
sary.
Circuit breakers tripped. Reset breakers (CB1 or CB2), page
35.
Hose zone not turned on.
Press zone key.
A and B temperature setpoints too
low.
Check. Increase if necessary.
Failed temperature control module. Open cabinet. Check if board LED is
blinking. If not, check power wiring
connections to ensure module has
power. If board has power and LED
is not blinking, replace module, page
27.
Low hose heat. A and B temperature setpoints too
low.
Increase A and B setpoints. Hose
designed to maintain temperature,
not increase temperature.
Hose temperature setpoint too low. Check. Increase if necessary to
maintain heat.
Flow too high. Use smaller mix chamber. Decrease
pressure.
Low current; FTS not installed. Install FTS, see operation manual.
Hose heat zone not turned on long
enough.
Allow hose to heat up, or preheat
fluid.
Loose hose electrical connections. Check connections. Repair as neces-
sary.
Problem Cause Solution
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