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2/2 and 3/2 Solenoid Valve Maintenance & Troubleshooting Instructions
WARNING
To prevent the possibility of personal injury or
property damage, turn off electrical power,
depressurize solenoid operator and/or valve, and
Cleaning:
All solenoid operators and valves should be cleaned
periodically. The time between cleaning will vary
depending on medium and service conditions. In general,
if the voltage to the solenoid is correct, sluggish valve
operation, excessive noise or leakage will indicate that
cleaning is required. Clean strainer or filter when cleaning
the valve.
Preventative Maintenance:
1. Keep the medium flowing through the solenoid opera
tor or valve as free from dirt and foreign material as
possible.
2. While in service, the solenoid operator or valve should
be operated at least once a month to insure proper
opening and closing.
3. Depending on the medium and service conditions,
periodic inspection of internal valve parts for damage
or excessive wear is recommended. Thoroughly clean
all parts. Replace any worn or damaged parts.
Causes of Improper Operation:
1. Faulty Control Circuit
Check the electrical system by energizing the
solenoid. A metallic click signifies that the solenoid is
operating. Absence of the click indicates loss of
power supply. Check for loose or blown fuses,
open - circuited or grounded solenoid, broken lead
wires or splice connections.
2. Burned - Out Solenoid
Check for open - circuited solenoid. Replace if
necessary. Check supply voltage; it must be the same
as specified on nameplate/retainer and marked on the
solenoid. Check ambient temperature and check that
the core is not jammed.
3. Low Voltage
Check voltage across the solenoid leads. Voltage must
be at least 85% or rated voltage
