24G SERIES FLATBOTTOM GAS FRYERS CHAPTER 1: SERVICE PROCEDURES

1.9.2 Main Burner Malfunctions

PROBLEM

 

CORRECTIVE ACTION

Main burner will not

1.

Check that the combination gas valve is ON.

come on even though

2.

Check that the pilot is lit and is operating properly.

air blower is in

 

 

operation; no gas

3.

Check high temperature safety switch. Replace if defective.

pressure at main

 

 

burner.

4.

Check air prover (pressure switch) as follows:

 

 

Ensure green prover light is on. If not, check for 24 VAC going

 

 

into and coming out of the air prover pressure switch.

 

5.

Check air prover switch (sail switch) as follows:

 

 

Move actuating lever at switch to ensure it is not dragging in

 

 

the slots (use long tool to avoid burns). If so, bend the arm

 

 

carefully to clear the obstruction. Check the air prover switch

 

 

for continuity and replace if defective.

 

 

 

Air blower is not

1.

Cooked product or other material may have fallen into the flue

operating, although

 

and lodged in the blower wheel, preventing it from turning.

power is present at the

 

Clean out flue and blower wheel.

 

 

fryer.

2.

Blower motor may have overheated and shut off. This

 

 

condition will correct itself when motor cools (20 minutes). If

 

 

problems with blower overheating persist, call for service.

 

3.

If fryer is equipped with a Thermatron controller, the

 

 

temperature probe or the controller board may be defective.

 

 

 

Main burner flames are

1.

Check gas pressure at the pressure tap of the burner manifold.

small and appear lazy;

 

Use a standard water-type U-gauge manometer. With the

Oil does not come up

 

burner in operation, the pressure should be about 4" W.C. on

 

natural and 11" W.C. on propane (LP) gases. If not, unscrew

to temperature quickly.

 

 

the cover of the pressure regulator adjustment and turn the

 

 

adjusting screw clockwise to increase gas pressure (or

 

 

counterclockwise to decrease the pressure). Replace cover

 

 

and plug.

 

 

 

There are signs of

1.

Check the frypot for excessive build up of debris.

excessive frypot

2.

Thermatron controller may be out of calibration. Re-calibrate

temperature;

 

in accordance with instructions in Section 1.6.

oil becomes

 

 

 

discolored quickly.

3.

Check gas pressure.

 

4.

Oil of inferior quality or used too long. Replace with quality oil.

 

 

 

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Frymaster 1824/2424G Main Burner Malfunctions, Main burner will not, Come on even though, Air blower is, Operation no gas