Troubleshooting Guide - Garland GPD Series Installation And Operation Manual

TROUBLESHOOTING GUIDE

Problem
Hot Spots in Deck
Bottoms cook before top
Bottoms become light during
periods of heavy production
Color overall dark
Color overall light
Top color light
Burner flame yellow/soft/lazy
Flame lifts off burner ports
Flashes back in burner
Pops excessively when turned off Wrong orifice in unit
Burner flame too large
Burner flame shuts off when
oven reaches set temperature
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Causes
Flame diverters not installed properly
Flame diverters warped or damaged
Deposit on deck
Low production oven idling
By-pass flame too high
Improper damper position
Improper damper position
Placement of pizza
By-pass flame low
High temperature
Pizza left in too long
By-pass flame high
Thermostat
Short bake time
Lower temperature
Dough
Pre-heat time short
Damper closed
Oven idles during slow periods
Not enough air mixing
Low gas pressure
Too much air mixed with gas
Gas pressure too high
Unit over gassed or wrong orifice
By-pass set too low
Solutions
Push all the way to the back of oven
May need replacing
Clean deck
Turn temperature up after loading pizza. Make sure to
turn the temperature down after bake is compete
Adjust by-pass flame
Adjust dampers
Close dampers
Change placement
Increase by-pass flame
Lower temperature
Reduce bake time
Reduce by-pass flame
Check actual temperature; call for service
Bake longer
Increase temperature
Check dough for freshness
Allow for adequate pre-heating
Open damper
Increase temperature to bake, reduce again when
bake is finished
Open (adjust) air shutter
Adjust pressure
Close (adjust) air shutter
Adjust pressure
Replace with proper orifice
Check gas pressure and orifice size
Adjust by-pass
Document #: G_GO_OM_PYRODECK_4606131 – 12/20