25
Maintenance continued-
9. A combination sacrificial anode rod/hot water outlet nipple has been
installed to extend tank life. The anode rod should be inspected
periodically (every 2 years) and replaced when necessary to prolong tank
life. Water conditions in your area will influence the time interval for
inspection and replacement of the anode rod. Contact the plumbing
professional who installed the water heater, or the manufacturer listed on
the rating plate for anode replacement information. The use of a water
softener may increase the speed of anode consumption. More frequent
inspection of the anode is needed when using softened (or phosphate
treated) water.
10. The vent system must be inspected at least once a year to ensure against
leakage of exhaust products.
TROUBLESHOOTING CHART – HONEYWELL V1.
LED Status
Control Status
Probable Cause
None (LED not on or
flashing)
Millivolt power is not
present. Light pilot.
1. Gas valve is functioning
normally.
2. Gas valve is not powered.
Light pilot.
One flash and three
second pause.
If set point know is in
“PILOT” position, then
pilot flame is detected.
(no faults)
.
Gas valve is powered and waiting
for the set point knob to be turned
to a water temperature setting. If
the set point knob is at desired
setting the thermostat is satisfied.
LED strobe (two quick
flashes) and three
second pause.
Thermostat calling for
heat
(no faults)
.
Water heater operating normally
LED on continuously.
Set point knob has been
recently turned to the
“OFF” position.
Set point know was recently turn
to “OFF” position. Wait until LED
goes out before attempting to
relight.
Two flashes and three
second pause.
Weak pilot flame
detected. System will
reset when pilot flame is
sufficient.
1. Gas valve is functioning
normally.
2. Gas valve is not powered.
Light pilot.
Three flashes and
three second pause
Insufficient water
heating. System will
reset.
1. Temperature sensor out of
calibration.
2. Possible short.
Four flashes and three
second pause
Excessive tank
temperature. System
must be reset.
1. Temperature sensor out of
calibration
2. Faulty gas valve.
