Technical directory · Accessories
Humidifier pad replacement
A bypass or powered humidifier may have a replaceable water panel with scale that affects water flow.
What to observe
Find the exact humidifier model and inspect the pad, distributor tray and water path.
A field example
White scale on a water panel may restrict distribution even while the furnace heats normally. Photograph the model and tray so the correct pad is used and the water path is checked for leaks.
What the written work should say
Use the correct replacement part, clear relevant deposits and check for leaks and shutoff after operation.
Where this task stops
A humidifier is an accessory; pad replacement is not a furnace combustion inspection.