/ Ci4000 / Ci5000 Weather-Ometer
®
Service Guide Doc. No. 07-7030-00 Rev. 0
35
5.0 TROUBLESHOOTING PROCEDURES
5.2 Xenon Lamp and Irradiance Control Malfunctions (cont.)
5.2.3 Troubleshooting Flow Chart - Lamp Ignition Failure
3) Check for messages
on Data Panel MAIN
page 1.
2) Check lamp for age,
damage, proper installa-
tion and ignitor lead con-
nections.
5) Check for line voltage
to ignitor during pulse.
1) Confirm Xenon and
Ignition circuit-breakers
are on.
6) Check for continuity
between relay terminals
K3-5 & K3-6 (Ci3 & Ci4)
or K3-6 & K3-7 (Ci5)*.
4) Initiate standard test
no. 1.
7) Check for 24Vac at
relay K3 coil during pulse.
8) Check for continuity at
terminals PLC3-1 and
PLC3-3 during pulse.
Messages
displayed
“Lamp Water Temperature High”
“Lamp Water Flow is Low”
Check CS-6 cooling system
(Section 5.5).
“Chamber Temperature is High”
Reset chamber safety thermo-
stat S4 in electronics drawer.
Ignition pulse
is audible
Install calibrated lamp
and attempt ignition.
Lamp
ignites
Lamp does
not ignite
Previous lamp is malfunc-
tioning. Inspect for dam-
age. Check burner socket.
Measure line voltage and
check transformer taps.
Set T1 lamp voltage boost
to next higher selection
(see Section 5.1.5).
Also check light rod clean-
liness/integrity and light
monitor filters and photo-
diodes (Sec. 7.2.9).
Ignition pulse
is not audible
Voltage is
present
On and Ci4000,
replace ignitor. On
Ci5000 check 1&2-Sun
relays K15 and K4.
No voltage
present
Continuity
No
Continuity
Check voltage at breaker
CB2. If no voltage, replace
breaker.
Voltage is
present
No voltage
present
Coil has failed. Replace
relay K3.
No
continuity
Continuity
If LED A2 on PLC3 module
is on during pulse, replace
PLC3 module. If the LED
is off, download software
program to PLC (see
Appendix A & Sec. 5.13.5).
9) Check for 24Vac at
TB3-7 & TB3-9 (Ci4) or
TB3-5 & TB3-8 (Ci5).
No voltage
Check breaker CB5 and T2
output at T2-X3 & T2-X4.
Replace failed breaker or
transformer T2.
*Ci3 denote
Ci4 denotes Ci4000
Ci5 denotes Ci5000