Installation / Operation Instruction Manual

24
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 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 knob 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.