E03: No Hose Current; E04: Fts Or Thermocouple Not Connected; E05: Board Overtemperature - Graco Reactor A-25 Repair Parts

E03: No hose current

Do steps in order. Do not skip any step.
a. Check hose connectors for broken electrical
connection, page 25.
b. Test hose continuity, page 28.
c. Test transformer wire harness continuity, page
28.
d. Check 50A (806) and 20A (817A) circuit break-
ers, page 18.
e. Test current sensor continuity, page 28.
f. Test in-rush current limiter continuity, page 28.
g. Do Transformer Primary Check, page 30.
h. Do Transformer Secondary Check, page 30.
E04: FTS or thermocouple
not connected
a. Check FTS operation by connecting directly to
Reactor.
309813B
Temperature Control Diagnostic Codes
b. Check cable connections between all hose
lengths.
c. Check temperature sensor connection at J1 on
temperature control board, page 20.
d. Check thermocouple with ohmmeter, page 26.
e. Use manual current control mode; see operation
manual.

E05: Board overtemperature

a. Check fan operation.
b. Check electrical cabinet door is properly
installed.
c. Check for obstructions blocking cooling holes in
bottom of Reactor.
d. Ambient temperature too high. Reduce gun mix
chamber size, or move Reactor to a cooler loca-
tion.
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