Rheem Guardian PowerVent - Pilot Does Not Stay Lit Issues; Main Burner Will Not Stay Lit Issues

Guardian PowerVent Training Manual SVC900; Rev 1
Page 29
Unable to light pilot
(but I can hear the
spark ignitor)
You may see one of
the following flash
codes:
1/1
3/1
3/3
1. Gas supply turned off
2. Gas control valve is damaged.
3. Pilot burner orifice is clogged
4. Pilot tube pinched or clogged
5. Air in gas line
6. Spark gap to large
7. Spark ignitor damaged
Turn on gas supply; turn on gas
valve.
Makes sure the white Molex
connector is tight. Verify 120V at
blue wire. If 120V the control
board is working, but the gas valve
is not; replace gas valve. If you do
not have 120V then electronic
control board is damaged; replace
control board.
Inspect and clean pilot orifice and
pilot burner.
Clean, straighten or replace.
Purge air from gas line. Cycle unit
after lockout and try again.
Reset spark gap to 7/64”.
Check spark ignitor and ignitor
wire; replace if damaged.
Pilot does not stay lit 1. Venting downdraft (or other
improper draft)
2. Clogged flue
3. Pilot partially clogged
4. Improper gas pressure
5. Improper ground
6. Spark ignitor is damaged, dirty
or has loose connection
7. Poor flame rectification
Check for proper draft venting.
Check for other drafts that could
blow out the pilot light.
Inspect and clean flue way.
Inspect and clean supply tube,
pilot orifice, and pilot burner.
Check grounding of pilot burner
and main burner.
Check, clean, repair or replace
spark ignitor.
Check that pilot flame covers the
pilot hood and is steady and blue.
Main burner will not
stay lit
1. Low gas pressure
2. Gas valve or control board
damaged
3. Main burner orifice or plate
clogged
4. Main burner supply tube
clogged or pinched
5. Poor flame rectification
Check gas supply pressure. Verify
manifold pressure.
Makes sure the white Molex
connector is tight. Verify 120V at
pin #6. If 120V the control board
is working, but the gas valve is
not; replace gas valve. If you do
not have 120V then electronic
control board is damaged; replace
electronic control.
Clean or replace.
Clean, straighten or replace.
Check that pilot flame covers the
pilot hood and is steady and blue.