lp-451 Rev. 001 Rel. 001 Date 7.25.17
11
Part 6 - Maintenance and Troubleshooting
Periodic maintenance should be performed by a qualified service
technician to ensure all equipment is operating safely and efficiently.
The owner should make necessary arrangements with a qualified
Annual Maintenance Activities
Date Last Completed
Piping
1st Year
2nd Year
3rd Year
4th Year
Near heater piping
Check heater and system piping for any sign of leakage; make sure
pipes are properly supported.
System
Visual
Do a full visual inspection of all system components. Ensure all
components (including boilers, water treatment systems, mixing
valves, circulators, etc.) are operating properly and have been
maintained.
Functional
Test all functions of the system. Perform any maintenance required
by local codes. Verify system pressure is in the safe operating range.
Temperatures
Check control for temperature accuracy.
*Verify safe settings on Mixing Valve (if installed in system).
Electrical
Smoke and CO
Detectors
*Verify devices are installed and working properly. Change batteries
if necessary.
Circuit Breakers
Check to see that the circuit breaker is clearly labeled. Exercise circuit
breaker.
Connections
Check wire connections. Make sure they are tight.
Relief and Drain Valve
Relief Valve
Lift and release the relief valve on the water heater. Make certain
that the valve operates properly by allowing several gallons to flush
through the discharge line. Replace if valve is blocked or does not
operate properly.
NOTE: TAKE CAUTION WHEN OPERATING RELIEF VALVE. DISCHARGED
WATER MAY PRESENT A SCALD RISK.
Drain Valve
Open the drain valve and drain a few quarts of water from the
bottom of the tank to flush any hard water deposits. Replace if valve
is blocked or does not operate properly.
NOTE: TAKE CAUTION WHEN OPERATING DRAIN VALVE. DRAINED
WATER MAY PRESENT A SCALD RISK.
Final Inspection
Check for
Combustibles
Check area around heater for combustible materials such as gasoline
or paint thinner. If combustible materials are found, move away from
the heater to a safe location.
Checklist
Verify that you have completed the entire checklist. WARNING:
FAILURE TO DO SO COULD RESULT IN SERIOUS INJURY OR DEATH.
Homeowner
Review what you have done with the homeowner.
Initial and Date after Inspection / Service. Continue Inspections Annually beyond the
Fourth Year.
Table 3 - Maintenance Activities Checklist - *If Applicable to System
heating contractor for periodic maintenance of the heater. Installer
must also inform the owner that the lack of proper water heater care
and maintenance may result in hazardous conditions.