User's Manual

ManualsBrandsGraco ManualsHot Melt EquipmentGraco 3A2347T - InvisiPac HM25

Troubleshooting

3A2347T 45

Slow start-up

time or system

takes longer

than 10 min-

utes to startup

Wrong setting in ADM

breaker setup.

Wrong breaker setting on ADM in the breaker setting in the setup

screen.

Low incoming voltage. Incoming voltage should be 200-240VAC for a 230 volt unit and 380-

400 VAC for a 400 volt unit.

Heater rod defective.

Melter and gun mani-

fold.

Measure and check heater rods in melter or manifold. Manifold resis-

tance 130-140 ohms.

Heated hose defective. Measure heater wires in hose, pins C and D. See repair section for

each hose resistance.

Insufficient power sup-

plied to system.

Depending on hose

and gun combinations,

along with minimal sup-

ply power, startup time

will vary.

Connect system to a power supply capable of maximum power per

system specification. All changes must be performed by a qualified

electrician. See Electrical Schematics on page 72 for details about

connecting to a different power supply.

No adhesive or

little adhesive

being dis-

pensed

Incorrect RTD setting in

system.

1. Verify melter, hose, and manifold temperatures are all with in the

same range of the room ambient.

2. If the manifold temperature is either much higher or much lower than

the melter temperature then the RTD setting is not correct for the

RTD being used. Select correct RTD setting in the setup screen sys-

tem 2 before beginning.

NOTE: Failure to have the correct RTD value will cause the manifold

and gun to either under-heat or over-heat. Setting for RTD in the ADM

screens is higher than actual RTD value. Consult manufacturer for

actual RTD value.

System indi-

cates no errors

and correct

temperature

however mani-

fold and gun

are over the