6-12
Troubleshooting
II. Red LED rights
Problem
Possible Reason
Corrective Action
Refer to
. Problem in
Failed components, bad connections,
Locate faulty channel Earlier in
tank, hose or
etc.
this section
gun channel
Defective hose or gun
To check:
Replace hose
(a) Switch circuit breaker off
(b) Reconnect all channels
(c) Electrically unplug gun from hose,
install dust cap to the open hose
receptacle
(d) Switch circuit breaker on
LED stays on
Faulty gun/hose electrical connection
Resume normal operation
To check:
Red LED turns off when dust cap is
replaced with gun plug after steps a,
b, c and d (from above)
.
Short in tank or gun RTD
To check:
Replace RTD in tank or gun
Section 7
Red LED and yellow tank or gun
LEDs on after a, b, c and d (from
above),
Open circuit in tank or gun RTD
To check:
Replace RTD in tank or gun
Section 7
(a) Red LED on and tank or gun
yellow LED off after a, b, c and d
(from above)
(b) Resistance (power OFF!)of gun
(between pins 3 and 5 of gun plug) or
tank (between pins 6 and 8, circuit
board connector J6) > 1 megohm or
other very high reading
Failed circuit board
To check:
Replace circuit board
Section 7
Gun overheats and resistance (power
off) = 138-309 ohms (normal)
OR
Tank overheats and resistance
(power off) across two large prongs of
tank triac A00 ohms
Failed tank triac
Replace tank triac
Section 7
To check:
Tank overheats and resistance
(power off) across two large prongs of
tank triac 400 ohms
Pit’4 106 701A
41-23OOSP - 1194
0 Nordson Corporation 1994
All Rights Reserved
To Next Page
Loading...
