Weil-McLain GOLD CGs User's Information Manual page 15

Common problems and solutions
Symptom
Popping or percolating
noise heard in boiler
Metal flakes found in vent
outlet or vent — flueway
corrosion
Some radiators or
baseboard units do not
heat or are noisy
Part No. 550-110-261/0999
GOLD CGs — User's Information Manual
Common Causes
Mineral deposits in sections due to
constant use of makeup water
Incorrect pH of boiler water
Insufficient water flow through
boiler
Contaminated combustion air
supply — See page 4 in this
manual.
Condensation of combustion
gases in boiler sections
Air in system
Low system pressure
High limit set too low
Possible Corrections
Call qualified service technician to de-lime
boiler, if necessary. In some cases,
deposits will be too heavy to remove with
de-liming procedures.
Have qualified service technician repair
leaks to eliminate need for constant
makeup water.
Call qualified service technician to check
pH level and correct. pH should be
maintained between 7.0 to 8.5.
Check all valves to and from boiler. Return
to proper setting.
Confirm circulator size.
Remove any contaminating products. See
page 4 in this manual.
Provide outside air for combustion. Kit
available through Weil-McLain distributor.
Have qualified service technician pipe-up
kit.
Have qualified service technician inspect
system piping and controls to verify proper
regulation of return water temperature.
Bleed air from system through air vents in
radiators or baseboard units.
Fill to correct pressure.
Check for leaks in boiler or piping. Have
qualified service technician repair at once.
Adjust high limit to higher setting.
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