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A stainless door-type dish machine in a restaurant dish room with its hood raised and its wash chamber empty, a clean wire rack on the landing table beside it, the tiled floor dry, nobody at the dish machine.

Frymaster E33: the drain valve did not confirm it closed

FilterQuick fryers drain and return oil through motor-driven valves that report their position to the controller.

(844) 571-4566

Mon–Sat, 8am–8pm

  • Water, fill and drain
  • Dish machine repair
  • Source: Frymaster

Book a visit

Three short steps, about a minute.

or call (844) 571-4566

What E33
actually means.

FilterQuick fryers drain and return oil through motor-driven valves that report their position to the controller. If the drain valve does not report closed, the FQ4000 logs E33 and blocks automatic filtration and top off so oil is not pumped into a vat that may be draining. A stuck valve, a failed actuator or the valve interface board are the usual suspects.

Frymaster commercial appliance display · also shown as DRAIN VALVE NOT CLOSED - FILTRATION AND TOP OFF DISABLED - CALL SERVICE

What to do when E33 shows on the commercial appliance

Kind of codeWater, fill and drain

Water is not arriving, not reaching its level, not heating or not leaving on time. A dish machine may be short of fill because a supply valve is half closed or its line strainer is clogged, it may drain slowly through a scrap basket full of debris, or its booster may be too scaled to heat the rinse; a combi's steam generator may be scaled or its water treatment exhausted; a washer-extractor may time out on a slow drain. Opening the supply valve, cleaning strainers with the unit off and checking the drain line are fair; a pump, a fill valve, a heater or a leak near wiring is a visit.

Usually leads toDish machine repair

Undercounter, door-type and conveyor dish machines: tank heaters, boosters, wash pumps, fill and drain valves.

Shows up asCommercial Appliance Error Code on a Combi, Fryer, Dish Machine or Laundry Display

A commercial appliance error code appears as letters or numbers on a combi, fryer, reach-in controller, dish machine or laundry machine display, or as a flashing light or an alarm tone.

MakeFrymaster

A Frymaster fryer is serviced cold: the visit waits until the oil has come down and the vat has been drained by the crew.

SourceFrymaster FilterQuick FQG30U easyTouch gas fryer manual with FQ4000 controller (error log codes, section 5.6)

FQ4000 easyTouch touchscreen controller on FilterQuick fryers (FQG30U and related FilterQuick gas and electric models). E32 (drain valve not open), E34 and E35 (return valve not open or not closed) follow the same pattern.

Before you book,
in this order.

Each step comes from Frymaster's own guidance for E33 on its commercial appliances. Follow it to the end: the last card says whether this is a visit.

01

Do not start another filter cycle; let the controller keep filtration disabled.

02

Check the filter pan area for oil that has leaked into the pan and keep the floor clear of drips so nobody slips.

03

Have the drain valve actuator and the valve interface board checked on a visit before the vat is refilled and heated.

Still there?

It usually turns into dish machine repair. Book with the code and the model number.

What not to do

E33 is not a clogged drain: when oil simply will not flow out during filtration, the FQ4000 logs E42 instead. Its twin, E32, is the same valve failing to confirm it opened.

What you may
notice with it.

The commercial appliance problems E33 tends to arrive with. Answer these at the commercial appliance before anyone is booked.

All problems

Before you call

Commercial Appliance Error Code on a Combi, Fryer, Dish Machine or Laundry Display

All 8 causes, cheapest first

It also comes with

Close view of the dark touch control panel on the front of a stainless combi oven in a commercial kitchen, one abstract amber warning indicator glowing among unlit icons, the steam-fogged glass door blurred beside it. Problem

Commercial Appliance Error Code on a Combi, Fryer, Dish Machine or Laundry Display

8 causes, cheapest first

Where E33 usually leads

Dish machine repair.

Dish machine tank heater or booster element, thermostat, fill valve, float switch, drain valve, wash pump seal or motor, conveyor drive · moderate.
Book a visit What the job involves

Frymaster
commercial appliances.

A Frymaster fryer is serviced cold: the visit waits until the oil has come down and the vat has been drained by the crew.

Frymaster commercial appliance repair

More Frymaster codes

E13E16E17E18E19E25E28E39E41E42E44E53
All 15 Frymaster codes

Water, fill and drain on other makes

Alto-Shaam E01Blodgett Water Level ErrorCleveland LOW WATER lightDexter F2Hatco LO H2OHobart 019Miele Professional F18Pitco DRAINING TURN OFF
All 45 codes of this kind
A working restaurant cooking line under a stainless ventilation hood, two stainless gas fryers with baskets hanging above the oil, a flat griddle and a combi oven with a glass door beside them, the equipment clearly the subject, a cook seen only from behind and shoulders down at the far end of the line, warm kitchen light, small blue flames visible under the griddle. Frymaster builds this

Commercial cooking equipment

Fryers, griddles, charbroilers, restaurant ranges, convection and combi ovens, steamers, kettles, holding cabinets and toasters, on gas or electric, that make up the hot side of a kitchen line.

In Frymaster's own words

Drain valve was trying to close and
Frymaster FilterQuick FQG30U easyTouch gas fryer manual with FQ4000 controller (error log codes, section 5.6) Frymaster FilterQuick FQG30U easyTouch gas fryer manual with FQ4000 controller (error log codes, section 5.6)

Every code on this site is taken from the manufacturer's documentation, never from a forum or a parts listing. FQ4000 easyTouch touchscreen controller on FilterQuick fryers (FQG30U and related FilterQuick gas and electric models). E32 (drain valve not open), E34 and E35 (return valve not open or not closed) follow the same pattern.

Frymaster E33 commercial appliance repair,
where we come out.

The same visit in every metro below: the code, the model number, and a diagnosis before any part is ordered.

All service areas

Tampa BayFL · 31 areas

OrlandoFL · 30 areas

Miami / South FloridaFL · 47 areas

New York MetroNY · 75 areas

HoustonTX · 36 areas

ChicagoIL · 50 areas

Los AngelesCA · 95 areas

San DiegoCA · 31 areas

San Francisco Bay AreaCA · 74 areas

A restaurant team working a busy commercial kitchen line.
For the heart of your home.

Questions
about E33.

Can I clear E33 myself?
Do not start another filter cycle; let the controller keep filtration disabled. If it comes back, it needs a visit.
Can I still cook on a Frymaster showing E33?
Only if the controller allows it and the oil is at a normal level; filtration and top off stay disabled. Many kitchens stop that vat anyway, since a drain valve that may be partly open can let hot oil into the pan.
What is the difference between E32 and E33 on a Frymaster?
E32 means the drain valve failed to confirm it opened, E33 that it failed to confirm it closed. Both come from the same valve and actuator.
Why did my Frymaster turn off auto top off after E33?
Pumping fresh oil into a vat whose drain may be open would send oil into the filter pan or onto the floor, so the controller shuts both functions off together.

Back to your everyday

Still showing E33?

A booking with a code goes further when it has the code as shown, the model and serial from the data plate, and a word on whether the unit still holds temperature, heats, rinses or spins. With those three, the office can match the likely part to your unit the same day.

Schedule a repair Call (844) 571-4566
(844) 571-4566 Schedule a repair