Henny Penny 520 Service Manual page 32

Compact pressure fryer
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ode1 520
Pressure will not
exhaust at end of
frying cycle
Operating pressure
too high
Pressure does not
build
Exhaust line from solenoid
valve to expansion tank
clogged.
* Solenoid valve clogged.
* Dead weight clogged.
* Exhaust line to stack clogged.
* Not enough product in fryer
or product not moist.
Metal shipping spacer not
removed from dead weight.
Lid open or not latched.
* Solenoid valve leaking or not
closing.
Dead weight valve leaking.
Main timer not closing
solenoid.
Safety relief valve leaking.
* Release pressure from frypot;
clean all pressure lines.
* Check and clean solenoid valve.
* Release pressure from frypot;
remove dead weight and clean.
* Clean exhaust line to stack.
* Place proper quantity of moist
product within frypot to
generate steam.
Remove shipping spacer.
* Close and latch lid.
* Check or clean solenoid valve.
* Repaid dead weight valve, per
maintenance section.
Check main timer.
Check and replace if necessary.
Filter motor runs but
pumps shortening
slowly
Filter valve not open.
Pump clogged.
Filter screens not properly
assembled.
Filter line connections loose.
I
Solidified shortening in lines.
Filter paper clogged.
Open filter valve.
Remove and clean pump.
Reassemble filter screens.
Tighten all filter line
connections.
Clear all filter lines of solidified
shortening.
Change filter paper.

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