6.8
Diagnostic error codes and troubleshooting procedures for Honeywell integrated
control
Error code
Definition of code
Cause of problem and actions taken to correct
4
Low flame sense
Determine flame sense current in the Service mode with the water
heater operating. If less than 1.0 microamps, check pilot flame
sense rod with emery cloth. If problem is not solved, replace pilot.
2
Pressure switch failed
to open
(stuck closed)
29
Pressure switch failed
to close
(stuck open)
6
Flame sensed out of
normal sequence
(before opening gas
valve or after closing
gas valve)
Check to make sure gas valve has closed. No voltage should be
present at the gas valve before or after ignition cycle. Make sure
wire positions on the wire harness are correct. If gas valve is stuck
open, replace.
23
Flame detected
before ignition
Check to make sure gas valve has closed. No voltage should be
present at the gas valve before the ignition cycle. Make sure wire
positions on the wire harness are correct. If gas valve is stuck
open, replace.
24
Flame detected after
heating cycle
completes
Check to make sure gas valve has closed. No voltage should be
present at the gas valve before the ignition cycle. Make sure wire
positions on the wire harness are correct. If gas valve is stuck
open, replace.
31
Upper sensor
reading faulty
Resistance of upper sensor out of operating range. Check
continuity of wire harness to upper sensor, and if O.K., replace
upper sensor.
48
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Страница 4: ...9 Appendix 57 9 1 Dismantling Disposal and Recycling 57 Copyright 57 ...
Страница 21: ...3 11 Wiring Diagram Fig 10 21 ...
Страница 51: ...8 Parts List 8 Parts List 8 1 General Assembly Fig 70 51 ...
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Страница 53: ...Introduction 1 53 ...
Страница 54: ...Parts List 8 8 2 Control Box Assembly 54 ...
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