Vulcan-Hart 1GR85C User Manual
GRDF / GRCF SERIES GAS FRYERS
VULCAN-HART F-31214 Rev. D (March 2008)
-28-
OPEN PROBE – If an open probe is detected, the heat demand is disabled and any running
cooking cycles are cancelled. All operator buttons are disabled. The digital control displays
the following message:
“D” Solid State – OPEN PROBE
“C” Computer – PROBE OPEN
SHORTED PROBE – If a shorted probe is detected, the heat demand is disabled and any
running cooking cycles are cancelled. All operator buttons are disabled. The digital control
displays the following message:
“D” Solid State – SHORTED PROBE
“C” Computer – PROBE SHORT
Hi TEMPERATURE – If the temperature is greater than or equal to 415°F (212°C), the heat
demand is disabled and any running cooking cycles are cancelled. All operator buttons are
disabled. The control displays the following message:
“D” Solid State – HIGH TEMP
“C” Computer – HIGH TMP HIGH TMP
Troubleshooting Chart:
Problem:
Probable
Cause:
No Heat:
Power switch not turned on.
Gas
supply
not
turned
on.
Wire
connections
loose
(call
service)
Wires
connections
need
cleaning
High
Limit
(call
service)
Insufficient or too much heat:
Temperature not set to desired temperature.
High
limit
tripped
(call
service)
Temperature
probe
(call
service)
Tank will not drain:
Shortening too cold.
Drain
pipe
clogged
with
debris.
Motor / pump will not pump oil:
Suction tube not seated correctly in receptacle block.
Filter
screen
is
clogged
and
needs
cleaning.
Shortening is too thick / cold. Heat oil up to min. 300º F.
Discard valve lever not fully engaged either for filtering or
discarding.