Installation / Operation Instruction Manual

29
TROUBLESHOOTING
(Applies to RG1D and RG2D models)
LED St at u
s
Control Statu
s
Probable Cause
None (LED not on
or flashin
g)
Elect rical pow er not
p
resent
Control pow er sw itch in " OFF" position.
Su
pp
l
y
volta
g
e interru
p
ted.
One short flash
every four
seconds
Stand-by mode,
Thermostat is satisf ied (no
faults
)
Temperature demand is satisfied (no call for
heat )
Alternates bright
and dim
(
heart beat
)
Thermost at calling for heat
(no fault)
Tank temperature below setpoint of
thermost at
Short flash once
every second
Weak pilot signal on last
call for heat
1. Unstable pilot
2. Pilot tube blocked or restricted
3. Oxidation build-up on pilot electrode
4. Wire damage to pilot assembly or bad
connection at gas valve
Tw o flashes,
three second
pause
Damper test circuit not
working
1. Damper not in proper position or
malfunctioning - stuck in open position
2. Obstructed venting
3. Fault
y
damper
Three f lashes,
three second
pause
Damper test circuit not
working
1. Damper not in proper position or
malfunctioning - not reaching full open
position
2. Obstructed venting
3. Faulty damper
Four flashes,
three second
p
ause
Excessive t ank
temperat ure, syst em must
be reset
1. Thermal w ell sensor out of calibration
2. Faulty gas valve
Fiv e f lashes,
three second
p
ause
False pilot flame present Pilot valve stuck in open position
Six flashes, one
flash, t hree
second pause
(Soft Lockout)
Failed to light pilot,
syst em resets aft er (5)
minutes
1. Unstable pilot
2. Pilot tube block or restricted
3. Oxidation build-up on pilot electrode
4. Wire damage to pilot assembly or bad
connection at gas valve