FRYER TROUBLESHOOTING GUIDE (Continued)
PROBLEM | CAUSE | REMEDY |
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Liquid shortening does | 1. Low gas supply pressure [less than 6” | 1. Measure the gas supply pres- |
not reach the desired | W.C. for natural gas; (11” W.C. for pro- | sure. |
temperature for frying. | pane) when all other | Contact your local gas supplier |
| ment is operating], causing reduced heat | to obtain adequate gas supply |
| from main burners. | pressure. |
| 2. Low gas manifold pressure [less than 3½” | 2. Measure the gas pressure at |
| W.C. for natural gas; (10” W.C. for pro- | the fryer’s manifold pressure |
| pane). | tap. Adjust the manifold pres- |
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| sure (see Figure 6), as neces- |
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| sary: [a] Unscrew (and re- |
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| tain) the threaded Main Burner |
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| Regulator Adjustment Cover. [b] |
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| Use a |
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| turn the regulator adjustment |
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| screw (clockwise to increase; |
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| counterclockwise to decrease) |
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| to reset the pressure adjust- |
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| ment. [c] Reinstall, and tighten, |
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| the Regulator Adjustment |
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| Cover, when finished. |
| 3. Loosen knob on thermostat; or thermostat | 3. Stir the shortening to mix the |
| requires calibration (temperature setting | hot shortening with some from |
| differs by about 10°F from measured | the lower ‘cool zone’ and allow |
| shortening temperature). | it to sit for 5 minutes. Turn the |
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| thermostat knob until it ‘clicks’ |
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| on (causing the main burners to |
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| flame); note the setting where |
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| this occurs. Turn the thermo- |
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| stat knob until it ‘clicks’ off |
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| (causing the main burners to go |
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| out); note the setting where this |
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| occurs. Repeat this tempera- |
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| ture ‘click points’ step at least |
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| three times to ensure that |
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| the shortening temperature has |
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| stabilized. |
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| Measure the temperature of |
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| the shortening by inserting an |
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| accurate thermometer about |
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| 4 inches into the shortening to |
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| measure its temperature. If the |
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| temperature difference between |
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| the measured temperature and |
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| the thermostat setting is 10°F |
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| or less, the thermostat can be |
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| recalibrated. |
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