Section 6 Troubleshooting - Pentair VH200 Owner's Manual

Troubleshooting
Section 6 Troubleshooting
Symptom Possible Causes
Sediment pre-filter clogged
Pressure Drop
Flow regulator
Quartz sleeve is stained or dirty
Change in feed water quality
High Bacteria
Contamination in water lines after UV
Counts
system
Possible break-through of sediment
through pre-filter
Heated Product Common problem caused by
Water infrequent use of water
Water Appears
Caused by air in the water lines
Milky
Problem with O-ring seal (on retaining
nut and/or UV sensor)
Unit Leaking Condensation on chamber caused by
Water excessive humidity & cold water
Inadequate inlet/outlet port
connections
System Shutting
Interrupted controller
Down
Intermittently
Loose connection between lamp and
connector
Lamp Failure
Alarm on - New
Moisture build up in connector may
Lamp
keep lamp and connector from
making a solid connection
•
LED display reads "A3"
•
•
•
LED display is blank
•
•
•
Low UV level displayed
on screen
•
•
•
LED flashing "A2" and
then back to UV level
•
16
Replace filter cartridge with appropriate 5 micron cartridge.
Note: Check source water supply as fluctuations may occur in source pressure.
Flow regulator will result in pressure drop when approaching full flow.
Clean sleeve with scale cleaner and eliminate source of staining problem (ie. soften hard water,
refer to
Have source water tested to ensure that water quality is still within allowable limits for this system.
It is imperative that effluent water stream be shocked with chlorine (bleach) before water leaves UV
system - disinfection system must have a bacterial free distribution system to work effectively.
Refer to
Have source water tested for turbidity - may need stepped filtration in order to catch all sediment
entering water system (20 micron filter followed by a 5 micron filter followed by UV system).
Run water until it returns to ambient temperature.
Run water until air is purged.
Ensure O-ring is in place, check for cuts or abrasions, clean O-ring, moisten with water/ lubricant
and re-install, replace if necessary (410867).
Check location of disinfection system and control humidity.
Check thread connections, reseal with Teflon
•
•
Disconnect lamp from connector and reconnect, ensuring that a tight fit is accomplished
Eliminate chance of any moisture getting to the connector and/or lamp pins
DISPLAY FAULT MODES
Lamp life expired - countdown is at "0" days. Refer to
Press reset button for a deferred alarm, replace UV lamp.
Controller is in lamp failure mode. Refer to
Power system down, allowing it to reset itself; apply power in order to confirm that the controller is able to power lamp.
Check to see if there is sufficient power to the UV system.
Replace lamps.
Test water supply to see if water quality meets recommended parameter limits.
Clean quartz sleeves and sensor eye.
Low UV alarm deferral has been activated. Refer to
UV level has dropped below 50% and the audible alarm has been muted by pressing the reset switch and holding it for 5
seconds.
This audible alarm deferral will only last 12 hours.
Section 4.2.
Section 3.2
Ensure system has been installed on its own circuit, as other equipment may be drawing
power away from UV (ie. pump or fridge).
UV system should not be installed on a circuit which is incorporated into a light switch.
Section 5.1.2.
Section 5.1.5.
Section 5.2.1.
Solutions
®
tape and re-tighten.