Keating Of Chicago GAS FRYER, Service Manual

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12
A. Trouble shooting
The following diagnosis is only to be used as a guide to qualified service personnel. Keating recommends that you
use a qualified service company. Call 1-800-KEATING if you need assistance in locating a qualified service
company.
PROBLEM PROBABLE CAUSE SOLUTION
Constant pilot won’t light. a. Gas isn’t turned on. a. Turn manual gas valve on. If using
flexible connector with quick disconnect,
make sure quick disconnect is
completely engaged.
b. Clogged constant pilot tubing. b. Turn fryer and manual gas valve off.
Clean tubing.
c. Constant pilot valve isn’t c. Turn constant pilot valve on and adjust
turned on. pilot flame height.
Runner pilot tube won’t a. Gas isn’t turned on. a. Turn manual gas valve on. If using
light. flexible connector with quick disconnect,
make sure quick disconnect is
completely engaged.
b. No electricity to fryer (BB & TS b. Plug fryer into approved outlet.
models).
c. Hi-Limit has been activated c. Push Hi-Limit reset button located under
control panel. See figure 2-4.
d. Clogged runner pilot orifice(s). d. Turn fryer and manual gas valve off. Clean
orifice(s) and other parts as necessary.
e. Drain valve handle isn’t pushed e. Push in and latch drain valve handle to
in completely (Central filter only). activate rear drain safety switch.
Runner pilot won’t a. Low gas supply or pressure. a. Verify if size of incoming gas line to fryer
stay lit. and manifold gas pressure are adequate.
b. Dirty runner pilot tube or pilot b. Turn fryer and manual gas valve off.
orifice(s). Clean orifice(s) and pilot tube.
c. Low pilot flame height. c. Adjust pilot flame height.
d. Flame switch control is faulty d. If it takes more than 60 seconds for pilot
(BB & TS models). to stay lit, replace flame switch control.
e. Hi-Limit has been activated e. Push Hi-Limit reset button located under
control panel. See figure 2-4.
f. Exhaust problems or drafts in f. Install or adjust flue restrictors. If problem
kitchen. persists, contact your HVAC representative.
g. Thermopile or gas valve is faulty g. Perform millivolt tests.
(AA & CMG models). Replace faulty thermopile or gas valve.
h. Delayed ignition. h. See diagnosis below.
Delayed ignition. a. Dirty runner pilot tube or pilot a. Turn fryer and manual gas valve off.
orifice(s). Clean orifice(s) and pilot tube.
b. Low pilot flame height. b. Adjust pilot flame height.
c. Exhaust problems or drafts c. Install or adjust flue restrictors. If problem
in kitchen. persists, contact your HVAC representative.
d. Low gas supply or pressure. d. Verify if size of incoming gas line to fryer
and manifold gas pressure are adequate.
Burners won’t come on. a. Thermostat is faulty. a. Push and hold in Hi-Limit test button. If
burners come on, replace thermostat.
b. Fry/Off/Melt switch (BB & TS b. Replace switch.
models) or On/Off switch
(AA & CMG models) is faulty.
c. Faulty gas valve. c. Replace gas valve.
Flames come out top a. Excessive gas supply or pressure. a. Adjust pressure, change burner orifices
of flue or install in-line regulator.
b. Collapsed burner radiants. b. Replace radiants.
c. Exhaust problems. c. Install or adjust flue restrictors. If problem
persists, contact your HVAC representative.