Troubleshooting; General; Pilot Burner Malfunctions - Dean SM20 Installation & Operation Manual

DEAN MILLIVOLT GAS FRYERS (CE)

6.1 General

Hot cooking oil/shortening will cause severe burns. Never attempt to move this
appliance when filled with hot cooking oil/shortening or to transfer hot cooking
The problems and possible solutions covered are those most commonly encountered.
To troubleshoot, perform the test set-up at the beginning of each condition. Follow each step in
sequence.
6.2 Pilot Burner Malfunction
A. Pilot will not ignite: no evidence of gas at pilot burner.
1. Check that gas valve is open and gas is present at the gas valve.
2. Check pilot burner orifice for dirt or lint.
3. Remove pilot burner gas-supply line and check for contamination: blow out if necessary,
then reinstall.
B. Pilot burner ignites but will not remain lit when gas valve manual knob is released.
1. Check that thermocouple lead is properly screwed into thermocouple connection bushing
on gas valve.
2. Remove end of thermocouple lead from thermocouple connection bushing and clean with
fine sandpaper or emery cloth.
3. Pilot flame may be too high or too low. Adjust pilot flame adjustment screw so that pilot
flame extends about 22 mm (¾-inch) above the top of the pilot burner.
4. Check all connections for cleanliness and security.
C. Pilot flame of proper size, but is unstable.
thermocouple completely at all times.
1. Check for drafts that might be caused by air conditioning equipment or make-up air
apparatus. Turn air-moving equipment off and recheck the pilot.
CHAPTER 6: TROUBLESHOOTING
oil/shortening from one container to another.
DANGER
Flame wavers and does not envelop the
6-1