Temperature Control Diagnostic Codes; E01: High Fluid Temperature - Graco Reactor E-20 Series Manual

Temperature Control Diagnostic Codes

Temperature control diagnostic codes appear on tem-
perature display.
These alarms turn off heat. E99 clears automatically
when communication is regained. Codes E03 through
E06 can be cleared by pressing
turn main power OFF

E01: High fluid temperature

Causes of E01 Errors
• Thermocouple A or B (310) senses a fluid tempera-
ture above 230°F (110°C).
• Fluid temperature sensor (FTS) senses a fluid tem-
perature above 230°F (110°C).
• Overtemperature switch A or B (308) senses a fluid
temperature above 230°F (110°C) and opens. At
190°F (87°C) the switch closes again.
• Thermocouple A or B (310) fails, is damaged, is not
touching the heater element (307), or has a poor
connection to the temperature control board.
• Overtemperature switch A or B (308) fails in the
open position.
• The temperature control board fails to turn off any
heat zone.
• Zone power wires or thermocouples are switched
from one zone to another.
• Failed heater element where thermocouple is
installed.
• Loose wire
• On 6.0 and 10.2 kW heater models only: Jumper
wire on J1 connector, between module (3) and dis-
play (4), is loose or incorrectly wired.
312066ZAD
. For other codes,
then ON to clear.
Temperature Control Diagnostic Codes
Code Code Name
01 High fluid temperature
02 High zone current
03 No zone current with
hose heater on
04 FTS not connected
05 Board overtemperature
06 Communication cable
unplugged from module
99 Loss of communication
For hose zone only, if FTS is disconnected at
startup, display will show hose current 0A.
Checks
Troubleshooting this equipment requires access to
parts that may cause electric shock or other serious
injury if work is not performed properly. Have a quali-
fied electrician perform all electrical troubleshooting.
Be sure to shut off all power to the equipment before
repairing.
Check which zone is displaying the E01 error.
1. Check that connector B is firmly plugged into tem-
perature control board (see F
2. Clean and re-plug connections.
3. Check connections between the temperature control
board and overtemperature switches A and B (308),
and between temperature control board and ther-
mocouples A and B (310) or FTS (21) [depending
on which zone is displaying E01]. See Table 5, page
40. Ensure that all wires are securely connected to
connector B.
Alarm Corrective
Zone Action page
Individual 11
Individual 12
Individual 13
Individual 13
Individual 13
Individual 13
ALL 19
. 5, page 40).
IG
11