Troubleshooting

 

 

 

 

 

 

 

 

 

 

Error

Error

Type

Name

Cause

Solution

Code

Position

 

 

 

 

T4DH

Hose

ALARM

High Chemical

Hose portion exposed

Shade exposed hose from

 

 

 

Temperature

to an excessive heat

hot sun or expose FTS to

 

 

 

 

source, like hot sun or

same environment when

 

 

 

 

coiled hose, can pass

at rest. Uncoil entire hose

 

 

 

 

fluid more than 27°F

before heating to avoid

 

 

 

 

(15°C) over temperature

self-heating.

 

 

 

 

setting to the FTS.

 

 

 

 

 

Bad High Power

Replace HPTCM. See

 

 

 

 

Temperature Control

system repair manual.

 

 

 

 

Module.

 

T4NM

MCM

ALARM

High Motor

Cooling fans are not

Ensure ambient temperature

 

 

 

Temperature

operating properly.

is less than 120°F(48°C).

 

 

 

 

 

Check to see that the fans

 

 

 

 

 

are moving. Measure

 

 

 

 

 

voltage to fans. There

 

 

 

 

 

should be 240 VAC. If no

 

 

 

 

 

voltage is measured, check

 

 

 

 

 

wiring between fan and

 

 

 

 

 

circuit breaker CB03.

 

 

 

 

 

If the fans have voltage but

 

 

 

 

 

are not moving, replace fan.

 

 

 

 

 

Use an air hose to blow out

 

 

 

 

 

around the fan housings and

 

 

 

 

 

remove any built-up debris.

 

 

 

 

Bad electric motor.

Replace electric motor. See

 

 

 

 

 

System Repair manual.

84

3A1705J

Page 84
Image 84
Graco 3A1705J important safety instructions T4DH, T4NM MCM Alarm