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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.
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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.
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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 jobsite.
Troubleshooting procedures
Follow the troubleshooting guidelines step by step. Always double-check your results.
Skipping or not completing steps can lead to wrong conclusions, repeated callbacks to the
jobsite and unhappy customers.
Part number GL-E223-ADOC 0311
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