Installation / Operation Instruction Manual

24
Troubleshooting- 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 knob 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.