SM-33
Jade Range LLC
– A Middleby Company
Titan
TM
Series Heavy Duty Range
Model Series JTRH, JMRH & JTRHE
REVIEW COPY
7
SYMPTOM
Oven will not hold
temperature
Oven slow to heat
Oven will not recover
Product in oven
not cooking evenly
POSSIBLE CAUSES
Thermostat out of calibration
Bypass flame too high or too low
Oven door not closing properly
Wrong orifice
Low gas pressure
Vent in pressure regulator blocked
Oven door not closing properly
Wrong orifice
Bypass flame too low
Low gas pressure
Vent in pressure regulator blocked
Oven door not closing properly
Door spring broken/loose
Temperature too high or too low
Equipment not level
Door not closing properly
Door spring broken/loose
Product placement improper
Gas pressure fluctuating
REMEDY
Calibrate thermostat.
Adjust bypass flame.
Align door and check for obstructions.
Verify orifice size for gas type and replace
as needed.
Test for gas pressure and supply pipe sizes.
Clear obstructions from pressure regulator
or replace.
Check oven door for obstruction or align door.
Verify orifice size for gas type and replace
as needed.
Adjust bypass flame.
Perform gas pressure check procedure,
adjust as needed.
Clear obstruction from pressure regulator
or replace.
Check oven door for obstruction or align door.
Adjust/replace spring as needed.
Verify temperature of oven with thermometer.
Check and level range.
Check for obstructions and door alignment.
Adjust/replace spring as needed.
Ensure adequate space around product
in oven.
Perform gas pressure check procedure,
adjust as needed.
TROUBLESHOOTING CHART
The troubleshooting chart provides a list of other fault conditions. The left-hand column lists typical
symptoms, the center column lists probable causes and the right-hand column lists corrective actions.
