Paloma PH-28RIFSN, Engineering Handbook

Page: 12 / 68

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If Imperfect Combustion Happens.....
Ignition
Normal Air
Flow Rate
Extinction
Post- Purging
Sensor Stand-By
Lead Time
Cold: 2 Min.
Hot: 30 Sec. - 1 Min.
Water Flow
Servo OFF
Decrease of Thermo
Electric Current
Input Down
(Increase Air
Flow Rate)
Automatic Control To Resolve
Imperfect Combustion
Decrease of Thermo
Electric Current
Primary Warning
(Light)
Decrease of Thermo
Electric Current
Decrease of Thermo
Electric Current
Secondary Warning
(Alarm + Light)
Shut Down
(After- Purging)
Monitor Code
No Error
Code
Both Red and Green
flashing at the same time
05
Both Red and Green
flashing at the same time
Every 60 seconds, you hear
noticing alarm (Beep sound).
Monitor Code
Monitor Code
6 times
13
Only Red lamp flashing
(Indoor Model &
Direct Model Only)
(Display on Remote Control)
NOTE: Shutdown by impeefect combustion can be reset by pressing power switch (ON/OFF Button).
However, if it occurs 5 times within 4 hours, the water heater will not recover for the next 4 hours.