1.10.3 Troubleshooting the Gas Valve

Verify that gasmain

street valve is open and fryer gasline cutoff valve is open.

Verify gas valve is

in ON position.

Natural

Is incoming

gas pressure 6-14" No WC (1.49-3.49

kPa)?

Is 24VAC

present at the gas

valve?

For which gas is

the fryer

configured?

Problem is with fryer gas supply.

 

 

Problem is in the 24VAC

 

 

circuit. See Troubleshooting

No

 

 

the 24VAC Circuit on Pages

 

 

 

 

1-29 and 1-30.

Propane

Is incoming

No gas pressure 11-14" WC (2.74-3.49

kPa)?

 

 

 

Place the ON/OFF

 

 

 

 

 

 

or POWER switch

 

 

 

Yes

 

 

 

 

Yes

 

 

in the ON position

 

 

 

 

 

 

 

 

 

 

 

and light the pilot.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Does the pilot

remain lit?

Yes

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

No

 

 

 

 

 

 

 

 

 

 

 

 

 

Is output from

 

 

 

 

 

Probable cause is a

 

 

 

 

 

the thermopile approximately

 

 

 

 

 

 

 

 

 

 

No

 

 

 

 

 

 

 

 

 

 

 

 

 

 

400 millivolts?

 

 

 

failed thermopile.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Yes

 

 

 

 

 

 

 

 

 

 

 

 

Is continuity

 

 

 

 

 

Probable cause

Problem is a

 

 

 

 

 

 

 

 

 

Yes

 

of the high-limit switch

 

 

No

 

is a failed high-limit

failed gas valve.

 

 

 

 

 

 

 

 

zero?

 

 

 

 

 

switch.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1-32

Page 38
Image 38
Frymaster 45 Series manual Troubleshooting the Gas Valve