Full Product Manual

www.usaprocom.com
9160108-01C
TROUBLESHOOTING
WARNING: Never service heater while it is plugged in, operating
or hot. Severe burns and electrical shock can occur.
WARNING: High voltage! Unplug heater before servicing.
DISPLAY POSSIBLE CAUSE REMEDY
Display shows
C3,C4,C5,C6, C7,C8
or C9.
1. Control remembers codes
from prior operation. Control
only remembers codes C3,
C4, C5 and C6.
Codes C7, C8 and C9 are
reset when placing the unit
in standby and backing into
operational mode.
1. Press MODE/RESET button
to clear Code and restart
heater.
Display is off. 1. No power to heater (All LED’s
are off).
2. Bad electrical connection
between control and power
cord.
1. Check power cord connec-
tions.
2. Unplug heater. Check all
electrical connections (see
Wiring Diagram, page 18).
Display shows room tem-
perature.
1. Thermostat setting is too low. 1. Adjust thermostat to a higher
setting by pressing but-
ton or change to MANU-
AL MODE by pressing the
MODE/RESET button.
Display shows C8 Te m -
perature over 100°F.
1. Room or ambient tempera-
ture exceeds 100°F.
1. Operate heater in a cooler
environment.
Display shows C9 Low
Pressure.
1. Bad electrical connection
between motor and power
cord.
2. Motor locked-fan obstructed.
3. Motor locked-pump ob-
structed.
4. Motor defective.
1. Unplug heater. Check all
electrical connections (see
Wiring Diagram, page 18).
2. Unplug heater. Clear fan
obstruction.
3. Service pump (see page 17).
4. Unplug heater. Replace
motor.
FAULT CONDITION
Motor does not start after heater is plugged in and ON/STOP button is ON.