Graco Reactor 2 H-30 Repair Manual page 20

Troubleshooting
Error Location
Error Error Location Location
CACT TCM
DADX
HCM
20
Type Description
Type Type Description Description
TCM Communication
Error
Pump Runaway
Cause Solution
Cause Cause Solution Solution
Module does not Insert a system token into
have software. the ADM module and cycle
the power. Wait until the
upload is complete before
removing the token.
No 24 VDC supply Green light on each module
to module. should be lit. If green light is
not lit, check to make sure
each CAN cable connection
is tight. Verify the power
supply is outputting 24
VDC. If not, check power
supply wiring. If wiring is
okay, replace the power
supply.
Loose or broken Check the CAN cables
CAN cable. running between GCA
modules and tighten of
needed. If the problem
still persists move each
cable around the connector
and watch the flashing
yellow light on the GCA
modules. If the yellow light
stops flashing, replace the
CAN cable.
Flow rate is too
Mix chamber too large for
large. system selected. Use mix
chamber rated for system.
Ensure the system has
chemical and the feed
pumps are operating
correctly.
No material in pumps.
Verify pumps are supplying
chemical. If necessary,
replace or refill drums.
Inlet ball valves are closed.
Open ball valves.
334946C