Troubleshooting The Gas Valve - Frymaster Gas Rethermalizers FBR18 Series Installation And Operation Manual

6.8.1 Troubleshooting the Gas Valve

Natual Gas
Is incoming
gas pressure 6-14"
W.C. (1.49-3.49
kPa)?
Yes
Is burner manifold
gas pressure 3.5" W.C.
(0.8 kPa)?
Yes
Is gas valve vent tube
obstructed?
No
MAIN GAS SUPPLY
VALVE VERIFIED TO BE
OPEN AND EQUIPMENT GAS
VALVE IN ON POSITION.
Is there 24VAC
on gas valve main coil (PV
terminal)?
Yes
What gas is the
unit configured for?
Problem is with gas
No
supply to fryer.
Adjust pressure to
specification. If gas valve
No
will not adjust, replace gas
valve.
Yes
Clear obstruction.
Problem is not with
gas valve.
6-13
NOTE: All voltage measurements
must be made within 4 seconds of
unit calling for heat. If unit does
not fire within 4 seconds, ignition
modules will lock out and
controller must be turned off then
back on to reset.
Problem is with
24VAC circuit. Refer to
No
Troubleshooting the
24VAC Circuit.
LP (Propane)
Gas
Is incoming
gas pressure 11-14"
No
W.C. (2.74-3.49
kPa)?
Yes
Is burner manifold
No
gas pressure 8.25" W.C.
(2.5 kPa)?
Yes
Is gas Valve vent tube
Yes
obstructed?
No