Bakers Pride VH1828G Manual - Manual (Page 21)

THE PROBLEM THE CAUSE THE SOLUTION
21
Burner(s) do not light Oven not hot
enough
(Continued)
Check the following items first:
1. Gas Supply connected.
2. Shut-off valve open.
3. Pressure regulator set correctly.
THE FOLLOWING DIAGNOSTICS
TESTING CAN ONLY BE PERFORMED
BY AN AUTHORIZED SERVICE AGENT.
1. Determine if both burners light on call
for heat.
A. Remove one of two screws that
attach burner access covers,
located on front vertical face of
oven, one top, one bottom.
2. If both burners operate properly, they
will cycle ON/OFF at any temperature
setting.
3. If either burner fails to light, problem
could be gas related or electrical related.
CAUTION: THE FOLLOWING TESTS
ARE PERFORMED WITH LIVE POWER
WITH GAS CONTROL BOX OPEN.
THESE TESTS TO BE PERFORMED
ONLY BY AN AUTHORIZED SERVICE
AGENT.
4. At burner access holes, verify the
burner assembly is grounded (green
wire, ring terminal to burner support
bracket).
5. At same burner access holes, verify 3-
wire harness is properly connected.
6. At Gas Control Box, verify each 3-wire
burner harness is properly connected to
12-pole terminal block.
7. At 12-pole terminal block, verify all
wires are tight by exerting small pull on
each wire.
8. If one burner lights, determine which
ignition module is operating properly, and
swap ignition harnesses between
modules . Check if burner ignition
problem follows ignition module.
9. To verify if gas valve is operating
correctly, swap ignition module wires
from one valve to another, observing if
burner ignition problem changes burners.
10. By steps 8 & 9, it should be possible
to determine if ignition module is good.
Replace any module that is defective.
11. Verify that temperature control inputs
are correct & tight at 12-pole terminal
block.
12. Verify that vacuum switch wires are
in tact and that plastic hoses are
connected.
13. Verify that transformers are wired
correctly and operating properly.
14. If either gas valve is defective,
replace.
15. If both ignition modules are good,
and any ignitor fails to glow at call for
heat, re-check wiring at 12-pole terminal
block before replacing ignitor.
16. If burner ignites, but flame goes out
in a few seconds, re-check wiring at 12-
pole terminal block before replacing
flame sensor.
7-wire