Vulcan-Hart service manual Troubleshooting Guide, Symptom Cause Remedy

Page 18

TROUBLESHOOTING GUIDE

SYMPTOM

CAUSE

REMEDY

 

Indicator light fails to light

Not plugged in

Plug griddle into correct voltage

 

when power ON/OFF

 

outlet

 

switch is set to ON

 

 

 

position

Faulty ON/OFF switch

Replace ON/OFF switch

 

 

Store circuit breaker tripped

Reset circuit breaker

 

 

Faulty lamp

Replace lamp

 

 

 

 

 

Indicator light fails to go

Faulty power ON/OFF switch

Replace switch

 

out when power ON/OFF

 

 

 

switch is set to the OFF

 

 

 

position

 

 

 

 

 

 

 

Griddle does not heat

Not plugged in

Plug griddle into correct voltage

 

when thermostat is turned

 

outlet

 

on

Faulty ON/OFF switch

Replace ON/OFF switch

 

 

 

 

Store circuit breaker tripped

Reset circuit breaker

 

 

Faulty thermostat

Replace thermostat

 

 

Problem with pilot valve

Check operation of pilot valve

 

 

Problem with igniter

Check operation of igniter

 

 

Problem with flame switch

Check operation of flame switch

 

 

Loose wire connection

Check for bad connection and

 

 

 

correct

 

 

Flame switch has not had enough

Allow more time for flame switch to

 

 

time to heat up

heat up

 

 

 

 

 

Igniter stays on too long

Flame switch bulb not hot enough

Check alignment of pilot and flame

 

after pilot flame is

 

switch

 

established

 

Check for obstruction or wrong size

 

 

 

 

 

 

orifice

 

 

 

Check for proper gas pressure

 

 

 

 

 

Igniter fails to light

Problem with igniter

Replace igniter

 

 

Unit not plugged in

Plug griddle into correct voltage

 

 

 

outlet

 

 

Store circuit breaker tripped

Reset circuit breaker

 

 

Problem with power ON/OFF switch

Replace ON/OFF switch

 

 

Loose wire connection

Check and repair wire connection

 

 

 

 

 

F35628 (10-04)

— 18 —

Image 18
Contents 900RE Series Heavy Duty GAS Griddles Table of Contents Introduction Installation Operation Cleaning SpecificationsGeneral ToolsRemoval and Replacement of Parts Component LocationControl Panel Covers and PanelsPower ON/OFF Switch Indicator LightThermostat Flame Switch Ignitor ModuleGAS Burner Pilot SolenoidPilot Dual SolenoidService Procedures and Adjustments Main Burner AdjustmentThermostat Calibration GAS Pressure Measurement Pressure Readings in W.CElectrical Operation Component Description Sequence of OperationSchematic Diagrams Schematic Drawing for 36 Griddle Schematic Drawing for 48 Griddle Schematic Drawing for 60 Griddle Schematic Drawing for 72 Griddle Troubleshooting Guide Symptom Cause RemedyTroubleshooting Guide Form 35628