Important Isocyanate (ISO) Information
12 3A1570L
bly Modules, page 28.
d. If the swapped module does not fix the problem,
the power module is not the cause.
8. Verify continuity of heater elements with an ohmme-
ter, see page 29.
E02: High zone current
1. Turn main power OFF .
2. Relieve pressure, page 14.
Disconnect whip hose.
3. Disconnect hose connector (D) at Reactor.
4. Using an ohmmeter, check between the two termi-
nals of the connector (D). There should be no conti-
nuity.
5. Exchange zone module with another one. Turn
zone on and check for error (see page 28). If error
disappears, replace faulty module.
For hose zone: If error still occurs, perform Trans-
former Primary Check and Transformer Secondary
Check, starting on page 34.
When there is a high current error, the LED on that
zone’s module will turn red while the error is displayed.
E03: No zone current
1. Check for tripped circuit breaker inside electrical
cabinet or at power source for that zone. Replace
circuit breaker if it trips habitually.
2. Check for loose or broken connection at that zone.
3. Exchange zone module with another one. Turn
zone on and check for error (see page 28). If error
disappears, replace faulty module.
4. If E03 occurs for all zones, the 238CR contactor
may not be closing. Verify wiring from heater control
to contactor coil.
a. Hose zone: test hose continuity, page 32.
b. Perform Transformer Primary Check and
Transformer Secondary Check, starting on
page 34.
When a no current error occurs, the LED on this specific
zone’s module turns red when the error is displayed.
E04: Fluid Temperature Sensor
(FTS) or thermocouple
disconnected
1. Check temperature sensor connections to long
green connector (B) on temperature control module,
page 27. Unplug and re-plug sensor wires.
2. Test fluid temperature sensor continuity with ohm-
meter, page 11.
3. If an error occurred for the hose zone, check FTS
connections at each section of hose (see page 32).
4. If an error occurred for the hose zone, test FTS by
plugging directly into machine.
5. To verify heater control module is not causing the
problem, use a wire to short-circuit the two pins cor-
responding to the FTS (red and yellow for A or B
zone, red and purple for hose). The display will
show the control heater module temperature.
6. If an error occurred for the hose zone, temporarily
use manual current control mode. Refer to Reactor
Operation manual.
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