
INSTALLATION AND OPERATION INSTRUCTIONS
5-6
TANKLESS WATER HEATER 199
F005
No flame detected during operation.
•
Verify condensate drain is not blocked.
•
Check vent and combustion air piping for blockage.
•
Check for flue gas recirculation.
•
If vent termination is subject to high winds,
reconfigure/relocate as necessary.
•
Verify gas inlet pressure is at least 4” at both low and
high fire.
•
Verify low and high fire combustion readings are within
specifications.
•
Check ignitor condition and clean/replace as
necessary.
F006
Flame detected when burner is off.
Flame detected when burner is off.
•
Verify good internal and power supply grounding.
•
Verify flame goes out at conclusion of demand, if not
replace gas valve.
•
Replace ignition module.
•
Replace control module.
F007
Low flame signal.
•
Verify ignitor to ignition module connection is tight.
•
Check ignitor condition and clean/replace as
necessary.
•
Verify low and high fire combustion readings are within
specifications.
F008
Incorrect fan speed
•
Verify wire harness connections at fan and control
module are tight.
•
Replace fan.
•
Replace control module.
F009
Control module internal fault.
•
Remove all field wiring from unit then reset fault.
•
Check field wiring for voltage backfeed if F009 fault
does not return.
•
Replace control module if F009 fault code returns.
F010
Heat exchanger temperature sensor
open.
•
Verify wire harness connections at heat exchanger
temperature sensor and control module are tight.
•
Check resistance of each heat exchanger temperature
sensor (center pin is common), replace sensor if open
circuit is found.
•
Check resistance of each heat exchanger temperature
sensor (center pin is common) at control module
harness connector, repair wire harness if open circuit
is found.
F011
Heat exchanger temperature sensor
short
.
•
Check resistance of each heat exchanger temperature
sensor (center pin is common), replace sensor if short
circuit is found.
•
Check resistance of each heat exchanger temperature
sensor (center pin is common) at control module
harness connector, repair wire harness if short circuit
is found.
F012
Flue temperature sensor open.
•
Verify wire harness connections at flue temperature
sensor and control module are tight.
•
Check resistance of flue temperature sensor, replace
sensor if open circuit is found.
•
Check resistance of flue temperature sensor at control
module harness connector, repair wire harness if open
circuit is found.
Содержание 199,000 Btu/hr
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