Hayward H400FDN Universal H Series Troubleshooting Guide - Page 63
Heat Exchanger: Potential Failure Causes
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Heat Exchanger: Potential Failure Causes New, Clean Exchanger Low pH or High Water Flow High Sanitizer Levels Annealed Fins - Low Water Flow Low pH High Sanitizer Levels High pH, Alkalinity or Calcium Hardness Sooted - Improper Fuel and Air Mixture. Freeze Damage 63
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New, Clean Exchanger
Low pH or High Water Flow
High Sanitizer Levels
Annealed Fins
–
Low Water Flow
Freeze Damage
High pH, Alkalinity or Calcium
Hardness
Sooted
–
Improper Fuel
and Air Mixture.
High Sanitizer Levels
Low pH
63
Heat Exchanger: Potential Failure Causes