Dean HD Instruction Manual download pdf (Page 41)

HIGH EFFICIENCY DECATHLON SERIES GAS FRYERS

CHAPTER 1: SERVICE PROCEDURES

1-36

1.9 Troubleshooting Guides

The following troubleshooting guides are intended to assist service technicians in quickly isolating

the probable causes of equipment malfunctions by following a logical, step-by-step process.

PROBLEM

PROBABLE CAUSES CORRECTIVE ACTION

Burner will not ignite.

Light in ON/OFF switch

is not illuminated.

A. ON/OFF switch is off. A. Turn ON/OFF switch on.

ON/OFF switch is on,

ut the switch light is not

illuminated.

A. No voltage at switch. A. Ensure line voltage is present at the

switch.

A. Drain microswitch circuit (filter-

equipped units) is open.

A. Ensure drain valve is fully closed and

microswitch is functioning. Replace

microswitch if defective.

B. Voltage is present at ON/OFF switch,

but continuity of the switch in ON

position is not "0.”

B. ON/OFF switch is defective. Replace

switch with a known working switch.

C. Continuity of thermostat is not "0"

(oil temperature is at least 15°F below

electronic thermostat setting).

C. Thermostat(s) is/are defective.

Replace defective thermostat with a

known working thermostat.

ON/OFF switch is on and

the switch light is

illuminated, but there is

no output to gas valve.

D. Gas valve is suspect. D. Go to "No burner flame" section.

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Dean HD Instruction Manual Page 41