PAC R6000S - Page 74

Page 72 of 92 PAC L.P., All Rights Reserved, 2015
R6000S Operation Manual: Rev. G
Symptom
Probable Cause
Corrective Action
Baseline Drift, Continued
UV Lamp is Unstable
Replace UV Lamp.
High-voltage is unstable
Monitor high-voltage for
stability. Replace high-voltage
board if necessary.
Light Leak
Use Light Leak Check
procedure to check. Correct if
necessary.
Baseline High-Frequency
Noise
PCB contacts dirty
Clean PCB contacts.
Defective PMT
Replace PMT.
Defective Pre-amp PCB
Replace Pre-amp PCB.
Defective Amplifier PCB
Replace Amplifier PCB.
Unstable AC power source
Determine cause of instability
and correct.
Unstable gas regulator
Replace regulator.
High-voltage power supply is
unstable
Use high-voltage adjustment
procedure to monitor high-
voltage for stability. Replace if
necessary.
Defective PMT tube
Replace PMT tube.
Baseline Low-Frequency
Noise
Light leakage
Use light leak test to find leaks
and repair as needed.
Baseline Noise-Cyclic
Unstable AC power source
Determine cause of instability
and correct.
Unstable gas regulator
Replace regulator.
Defective PMT
Replace PMT.
Light leakage
Use light leak test to find leaks
and repair as needed.
Low Response
Gas leak
Use gas leak test to find leaks
and repair as needed.
Change in gas flow
Restore proper gas flow.
Incomplete sample
combustion
Ensure furnace temperature
and gas flows are correct.
Faulty Membrane Dryer
Replace Membrane Dryer.