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AQUA PLUS indirect-fired water heaters — Product Manual
Troubleshooting
Preparation for troubleshooting
Tools needed
Electrical meter to measure voltage and continuity.
Pressure gauge (such as Watts #276H300 test gauge).
Temperature gauge.
Stopwatch.
Bucket —
1 gallon or larger, with volume markings.
Suggested parts to have on hand.
Tank thermostat (Aquastat) — see Replacement parts for part number.
Inspection and service kit — see Replacement parts for part number.
Information needed before the service call
Know the water heater model number.
Know the boiler manufacturer and model number.
Have the boiler manual and wiring and piping schematics readily available.
Get the latest revisions from www.Weil-McLain.com.
Review all manuals before leaving for the job site.
Troubleshooting procedures
. Always double-check your results.
Skipping or not completing steps can lead to wrong conclusions, repeated callbacks to the
job site and unhappy customers.
Part number GL-E223-ADOC 0614
27
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